you people really likes to complicate things :)
the real problem is that the OP wants to, probably, add that to the end of some really big number. if not, there is no need I can think of for that to be required. as left zeros in any number is just, well, left zeroes.
so, just append the larger portion of that number as a math sum, not string.
e.g.
$x = "102384129" . complex_3_digit_random_string();
simply becomes
$x = 102384129000 + rand(0, 999);
done.
public void convert(int s)
{
System.out.println(NumberFormat.getNumberInstance(Locale.US).format(s));
}
public static void main(String args[])
{
LocalEx n=new LocalEx();
n.convert(10000);
}
Intl.PluralRules
, the standard method.I would just like to drop the canonical way of doing this in here, as nobody seems to know it.
If you want your code to be
- this is the way to go.
const english_ordinal_rules = new Intl.PluralRules("en", {type: "ordinal"});
const suffixes = {
one: "st",
two: "nd",
few: "rd",
other: "th"
};
function ordinal(number) {
const suffix = suffixes[english_ordinal_rules.select(number)];
return (number + suffix);
}
const test = Array(201)
.fill()
.map((_, index) => index - 100)
.map(ordinal)
.join(" ");
console.log(test);
_x000D_
// I use this jquery it works perfect, just add class nosonly to any textbox that should be numbers only:
$(document).ready(function () {
$(".nosonly").keydown(function (event) {
// Allow only backspace and delete
if (event.keyCode == 46 || event.keyCode == 8) {
// let it happen, don't do anything
}
else {
// Ensure that it is a number and stop the keypress
if (event.keyCode < 48 || event.keyCode > 57) {
alert("Only Numbers Allowed"),event.preventDefault();
}
}
});
});
In WebKit and Blink-based browsers & All Kind Of Browser use the following CSS :
/* Disable Number Arrow */
input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button {
-webkit-appearance: none;
margin: 0;
}
This answer attempts to address inputs with an absolute value in the range of 214748364810 (231) – 900719925474099110 (253-1).
In JavaScript, numbers are stored in 64-bit floating point representation, but bitwise operations coerce them to 32-bit integers in two's complement format, so any approach which uses bitwise operations restricts the range of output to -214748364810 (-231) – 214748364710 (231-1).
However, if bitwise operations are avoided and the 64-bit floating point representation is preserved by using only mathematical operations, we can reliably convert any safe integer to 64-bit two's complement binary notation by sign-extending the 53-bit twosComplement
:
function toBinary (value) {
if (!Number.isSafeInteger(value)) {
throw new TypeError('value must be a safe integer');
}
const negative = value < 0;
const twosComplement = negative ? Number.MAX_SAFE_INTEGER + value + 1 : value;
const signExtend = negative ? '1' : '0';
return twosComplement.toString(2).padStart(53, '0').padStart(64, signExtend);
}
function format (value) {
console.log(value.toString().padStart(64));
console.log(value.toString(2).padStart(64));
console.log(toBinary(value));
}
format(8);
format(-8);
format(2**33-1);
format(-(2**33-1));
format(2**53-1);
format(-(2**53-1));
format(2**52);
format(-(2**52));
format(2**52+1);
format(-(2**52+1));
_x000D_
.as-console-wrapper{max-height:100%!important}
_x000D_
For older browsers, polyfills exist for the following functions and values:
As an added bonus, you can support any radix (2–36) if you perform the two's complement conversion for negative numbers in ?64 / log2(radix)? digits by using BigInt
:
function toRadix (value, radix) {
if (!Number.isSafeInteger(value)) {
throw new TypeError('value must be a safe integer');
}
const digits = Math.ceil(64 / Math.log2(radix));
const twosComplement = value < 0
? BigInt(radix) ** BigInt(digits) + BigInt(value)
: value;
return twosComplement.toString(radix).padStart(digits, '0');
}
console.log(toRadix(0xcba9876543210, 2));
console.log(toRadix(-0xcba9876543210, 2));
console.log(toRadix(0xcba9876543210, 16));
console.log(toRadix(-0xcba9876543210, 16));
console.log(toRadix(0x1032547698bac, 2));
console.log(toRadix(-0x1032547698bac, 2));
console.log(toRadix(0x1032547698bac, 16));
console.log(toRadix(-0x1032547698bac, 16));
_x000D_
.as-console-wrapper{max-height:100%!important}
_x000D_
If you are interested in my old answer that used an ArrayBuffer
to create a union between a Float64Array
and a Uint16Array
, please refer to this answer's revision history.
https://golang.org/ref/spec#Numeric_types for physical type limits.
The max values are defined in the math package so in your case: math.MaxUint32
Watch out as there is no overflow - incrementing past max causes wraparound.
With Regular Expressions, how to get numbers from a String, for example:
String myString = "my 2 first gifts were made by my 4 brothers";
myString = myString .replaceAll("\\D+","");
System.out.println("myString : " + myString);
the result of myString
is "24
"
you can see an example of this running code here: http://ideone.com/iOCf5G
Lets say you wanted the maximum allowed value to be 1000 - either typed or with the spinner.
You restrict the spinner values using:
type="number" min="0" max="1000"
and restrict what is typed by the keyboard with javascript:
onkeyup="if(parseInt(this.value)>1000){ this.value =1000; return false; }
"
<input type="number" min="0" max="1000" onkeyup="if(parseInt(this.value)>1000){ this.value =1000; return false; }">
function delimitNumbers(str) {
return (str + "").replace(/\b(\d+)((\.\d+)*)\b/g, function(a, b, c) {
return (b.charAt(0) > 0 && !(c || ".").lastIndexOf(".") ? b.replace(/(\d)(?=(\d{3})+$)/g, "$1,") : b) + c;
});
}
alert(delimitNumbers(1234567890));
function isDecimal(num) {
return (num !== parseInt(num, 10));
}
You need to fetch the data from each row of the resultset obtained from the query. You can use mysql_fetch_array()
for this.
// Process all rows
while($row = mysql_fetch_array($result)) {
echo $row['column_name']; // Print a single column data
echo print_r($row); // Print the entire row data
}
Change your code to this :
require_once('db.php');
$sql="SELECT * FROM modul1open WHERE idM1O>=(SELECT FLOOR( MAX( idM1O ) * RAND( ) ) FROM modul1open)
ORDER BY idM1O LIMIT 1"
$result = mysql_query($sql);
while($row = mysql_fetch_array($result)) {
echo $row['fieldname'];
}
So simple just use abs((a) - (b)).
will work seamless without any additional care in signs(positive , negative)
def get_distance(p1,p2):
return abs((p1) - (p2))
get_distance(0,2)
2
get_distance(0,2)
2
get_distance(-2,0)
2
get_distance(2,-1)
3
get_distance(-2,-1)
1
line2 = "hello 12 hi 89"
temp1 = re.findall(r'\d+', line2) # through regular expression
res2 = list(map(int, temp1))
print(res2)
Hi ,
you can search all the integers in the string through digit by using findall expression .
In the second step create a list res2 and add the digits found in string to this list
hope this helps
Regards, Diwakar Sharma
There are multiple ways:
String.valueOf(number)
(my preference)"" + number
(I don't know how the compiler handles it, perhaps it is as efficient as the above)Integer.toString(number)
I got this solution for truncating leading zeros(number or any string) in javascript:
<script language="JavaScript" type="text/javascript">
<!--
function trimNumber(s) {
while (s.substr(0,1) == '0' && s.length>1) { s = s.substr(1,9999); }
return s;
}
var s1 = '00123';
var s2 = '000assa';
var s3 = 'assa34300';
var s4 = 'ssa';
var s5 = '121212000';
alert(s1 + '=' + trimNumber(s1));
alert(s2 + '=' + trimNumber(s2));
alert(s3 + '=' + trimNumber(s3));
alert(s4 + '=' + trimNumber(s4));
alert(s5 + '=' + trimNumber(s5));
// end hiding contents -->
</script>
var isOdd = x => Boolean(x % 2);
var isEven = x => !isOdd(x);
Long
is the Object
form of long
, and Integer
is the object form of int
.
The long
uses 64 bits. The int
uses 32 bits, and so can only hold numbers up to ±2 billion (-231 to +231-1).
You should use long
and int
, except where you need to make use of methods inherited from Object
, such as hashcode
. Java.util.collections
methods usually use the boxed (Object
-wrapped) versions, because they need to work for any Object
, and a primitive type, like int
or long
, is not an Object
.
Another difference is that long
and int
are pass-by-value, whereas Long
and Integer
are pass-by-reference value, like all non-primitive Java types. So if it were possible to modify a Long
or Integer
(it's not, they're immutable without using JNI code), there would be another reason to use one over the other.
A final difference is that a Long
or Integer
could be null
.
Yes! You can definitely use onclick
or you can also use addEventListener
to listen a click event. In this code sample the onclick
event is in action(use).
HTML code:
<div class="container">
<p><output id="output">0</output></p>
<p><button type="button" id="btn">Increment</button></p>
</div>
Javascript code:
(function() {
var button = document.getElementById("btn")
var output = document.getElementById("output")
var number
var counter
function init() {
// Convert string to primitve number using parseInt()
number = parseInt(output.innerText)
/**
* Start counter by adding any number to start counting.
* In this case the output starts from 0 so to immediately
* invoke the button to increment the counter add 1 to start
* counting in natural number (counting numbers).
*/ counter = number + 1
function increment() {
// Increment counter
value = counter++
output.innerText = value
}
// Output the increment value for every click
button.onclick = increment
}
window.onload = init
})()
There are specific suffixes for long
(e.g. 39832L
), float
(e.g. 2.4f
) and double
(e.g. -7.832d
).
If there is no suffix, and it is an integral type (e.g. 5623
), it is assumed to be an int
. If it is not an integral type (e.g. 3.14159
), it is assumed to be a double
.
In all other cases (byte
, short
, char
), you need the cast as there is no specific suffix.
The Java spec allows both upper and lower case suffixes, but the upper case version for long
s is preferred, as the upper case L
is less easy to confuse with a numeral 1
than the lower case l
.
See the JLS section 3.10 for the gory details (see the definition of IntegerTypeSuffix
).
Use this:
static int RandomNumber(int min, int max)
{
Random random = new Random(); return random.Next(min, max);
}
This is example for you to modify and use in your application.
That's not really how python works. Just use it like you would a number, and if someone passes you something that's not a number, fail. It's the programmer's responsibility to pass in the correct types.
Another method is:
function isFloat(float) {
return /\./.test(float.toString());
}
Might not be as efficient as the others but another method all the same.
set number
set nonumber
DO work inside .vimrc
and make sure you DO NOT precede commands in .vimrc
with :
It's a hex number and is 16 decimal.
I am using below in Angular to restrict character
in HTML
For Number Only
<input
type="text"
id="score"
(keypress) ="onInputChange($event,'[0-9]')"
maxlength="3"
class="form-control">
for Alphabets Only
<input
type="text"
id="state"
(keypress) ="onInputChange($event,'[a-zA-Z]')"
maxlength="3"
class="form-control">
In TypeScript
onInputChange(event: any, inpPattern:string): void {
var input = event.key;
if(input.match(inpPattern)==null){
event.preventDefault();
}
}
r = 13 + 7.*rand(100,1);
Where 100,1 is the size of the desidered vector
Update! Scroll to bottom of answer for
smartSort
prop additive that gives even more fun!
Sorts arrays of anything!
My personal favorite form of this function allows for a param for Ascending, or Descending:
function intArraySort(c, a) {
function d(a, b) { return b - a; }
"string" == typeof a && a.toLowerCase();
switch (a) {
default: return c.sort(function(a, b) { return a - b; });
case 1:
case "d":
case "dc":
case "desc":
return c.sort(d)
}
};
Usage as simple as:
var ara = function getArray() {
var a = Math.floor(Math.random()*50)+1, b = [];
for (i=0;i<=a;i++) b.push(Math.floor(Math.random()*50)+1);
return b;
}();
// Ascending
intArraySort(ara);
console.log(ara);
// Descending
intArraySort(ara, 1);
console.log(ara);
// Ascending
intArraySort(ara, 'a');
console.log(ara);
// Descending
intArraySort(ara, 'dc');
console.log(ara);
// Ascending
intArraySort(ara, 'asc');
console.log(ara);
function intArraySort(c, a) {_x000D_
function d(a, b) { return b - a }_x000D_
"string" == typeof a && a.toLowerCase();_x000D_
switch (a) {_x000D_
default: return c.sort(function(a, b) { return a - b });_x000D_
case 1:_x000D_
case "d":_x000D_
case "dc":_x000D_
case "desc":_x000D_
return c.sort(d)_x000D_
}_x000D_
};_x000D_
_x000D_
function tableExample() {_x000D_
var d = function() {_x000D_
var a = Math.floor(50 * Math.random()) + 1,_x000D_
b = [];_x000D_
for (i = 0; i <= a; i++) b.push(Math.floor(50 * Math.random()) + 1);_x000D_
return b_x000D_
},_x000D_
a = function(a) {_x000D_
var b = $("<tr/>"),_x000D_
c = $("<th/>").prependTo(b);_x000D_
$("<td/>", {_x000D_
text: intArraySort(d(), a).join(", ")_x000D_
}).appendTo(b);_x000D_
switch (a) {_x000D_
case 1:_x000D_
case "d":_x000D_
case "dc":_x000D_
case "desc":_x000D_
c.addClass("desc").text("Descending");_x000D_
break;_x000D_
default:_x000D_
c.addClass("asc").text("Ascending")_x000D_
}_x000D_
return b_x000D_
};_x000D_
return $("tbody").empty().append(a(), a(1), a(), a(1), a(), a(1), a(), a(1), a(), a(1), a(), a(1))_x000D_
};_x000D_
_x000D_
tableExample();
_x000D_
table { border-collapse: collapse; }_x000D_
th, td { border: 1px solid; padding: .25em .5em; vertical-align: top; }_x000D_
.asc { color: red; }_x000D_
.desc { color: blue }
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>_x000D_
<table><tbody></tbody></table>
_x000D_
Now have even more fun with a sorting method that sorts an array full of multiple items! Doesn't currently cover "associative" (aka, string keys), but it does cover about every type of value! Not only will it sort the multiple values asc
or desc
accordingly, but it will also maintain constant "position" of "groups" of values. In other words; ints are always first, then come strings, then arrays (yes, i'm making this multidimensional!), then Objects (unfiltered, element, date), & finally undefineds and nulls!
"Why?" you ask. Why not!
Now comes in 2 flavors! The first of which requires newer browsers as it uses Object.defineProperty
to add the method to the Array.protoype
Object. This allows for ease of natural use, such as: myArray.smartSort('a')
. If you need to implement for older browsers, or you simply don't like modifying native Objects, scroll down to Method Only version.
/* begin */
/* KEY NOTE! Requires EcmaScript 5.1 (not compatible with older browsers) */
;;(function(){if(Object.defineProperty&&!Array.prototype.smartSort){var h=function(a,b){if(null==a||void 0==a)return 1;if(null==b||void 0==b)return-1;var c=typeof a,e=c+typeof b;if(/^numbernumber$/ig.test(e))return a-b;if(/^stringstring$/ig.test(e))return a>b;if(/(string|number){2}/ig.test(e))return/string/i.test(c)?1:-1;if(/number/ig.test(e)&&/object/ig.test(e)||/string/ig.test(e)&&/object/ig.test(e))return/object/i.test(c)?1:-1;if(/^objectobject$/ig.test(e)){a instanceof Array&&a.smartSort("a");b instanceof Array&&b.smartSort("a");if(a instanceof Date&&b instanceof Date)return a-b;if(a instanceof Array&&b instanceof Array){var e=Object.keys(a),g=Object.keys(b),e=e.concat(g).smartSort("a"),d;for(d in e)if(c=e[d],a[c]!=b[c])return d=[a[c],b[c]].smartSort("a"),a[c]==d[0]?-1:1;var f=[a[Object.keys(a)[0]],b[Object.keys(b)[0]]].smartSort("a");return a[Object.keys(a)[0]]==f[0]?-1:1}if(a instanceof Element&&b instanceof Element){if(a.tagName==b.tagName)return e=[a.id,b.id].smartSort("a"),a.id==e[0]?1:-1;e=[a.tagName, b.tagName].smartSort("a");return a.tagName==e[0]?1:-1}if(a instanceof Date||b instanceof Date)return a instanceof Date?1:-1;if(a instanceof Array||b instanceof Array)return a instanceof Array?-1:1;e=Object.keys(a);g=Object.keys(b);e.concat(g).smartSort("a");for(c=0;20>c;c++){d=e[c];f=g[c];if(a.hasOwnProperty(d)&&b.hasOwnProperty(f)){if(a[d]instanceof Element&&b[f]instanceof Element){if(a[d].tagName==b[f].tagName)return c=[a[d].id,b[f].id].smartSort("a"),a[d].id==c[0]?-1:1;c=[a[d].tagName,b[f].tagName].smartSort("d"); return a[d].tagName==c[0]?1:-1}if(a[d]instanceof Element||b[f]instanceof Element)return a[d]instanceof Element?1:-1;if(a[d]!=b[f])return c=[a[d],b[f]].smartSort("a"),a[d]==c[0]?-1:1}if(a.hasOwnProperty(d)&&a[d]instanceof Element)return 1;if(b.hasOwnProperty(f)&&b[f]instanceof Element||!a.hasOwnProperty(d))return-1;if(!b.hasOwnProperty(d))return 1}c=[a[Object.keys(a)[0]],b[Object.keys(b)[0]]].smartSort("d");return a[Object.keys(a)[0]]==c[0]?-1:1}g=[a,b].sort();return g[0]>g[1]},k=function(a,b){if(null== a||void 0==a)return 1;if(null==b||void 0==b)return-1;var c=typeof a,e=c+typeof b;if(/^numbernumber$/ig.test(e))return b-a;if(/^stringstring$/ig.test(e))return b>a;if(/(string|number){2}/ig.test(e))return/string/i.test(c)?1:-1;if(/number/ig.test(e)&&/object/ig.test(e)||/string/ig.test(e)&&/object/ig.test(e))return/object/i.test(c)?1:-1;if(/^objectobject$/ig.test(e)){a instanceof Array&&a.smartSort("d");b instanceof Array&&b.smartSort("d");if(a instanceof Date&&b instanceof Date)return b-a;if(a instanceof Array&&b instanceof Array){var e=Object.keys(a),g=Object.keys(b),e=e.concat(g).smartSort("a"),d;for(d in e)if(c=e[d],a[c]!=b[c])return d=[a[c],b[c]].smartSort("d"),a[c]==d[0]?-1:1;var f=[a[Object.keys(a)[0]],b[Object.keys(b)[0]]].smartSort("d");return a[Object.keys(a)[0]]==f[0]?-1:1}if(a instanceof Element&&b instanceof Element){if(a.tagName==b.tagName)return e=[a.id,b.id].smartSort("d"),a.id==e[0]?-1:1;e=[a.tagName,b.tagName].smartSort("d");return a.tagName==e[0]?-1:1}if(a instanceof Date||b instanceof Date)return a instanceof Date?1:-1;if(a instanceof Array||b instanceof Array)return a instanceof Array?-1:1;e=Object.keys(a);g=Object.keys(b);e.concat(g).smartSort("a");for(c=0;20>c;c++){d=e[c];f=g[c];if(a.hasOwnProperty(d)&&b.hasOwnProperty(f)){if(a[d]instanceof Element&&b[f]instanceof Element){if(a[d].tagName==b[f].tagName)return c=[a[d].id,b[f].id].smartSort("d"),a[d].id==c[0]?-1:1;c=[a[d].tagName,b[f].tagName].smartSort("d");return a[d].tagName==c[0]?-1:1}if(a[d]instanceof Element||b[f]instanceof Element)return a[d]instanceof Element?1:-1;if(a[d]!=b[f])return c=[a[d],b[f]].smartSort("d"),a[d]==c[0]?-1:1}if(a.hasOwnProperty(d)&&a[d]instanceof Element)return 1;if(b.hasOwnProperty(f)&&b[f]instanceof Element)return-1;if(!a.hasOwnProperty(d))return 1;if(!b.hasOwnProperty(d))return-1}c=[a[Object.keys(a)[0]],b[Object.keys(b)[0]]].smartSort("d");return a[Object.keys(a)[0]]==c[0]?-1:1}g=[a,b].sort();return g[0]<g[1]};Object.defineProperty(Array.prototype,"smartSort",{value:function(){return arguments&& (!arguments.length||1==arguments.length&&/^a([sc]{2})?$|^d([esc]{3})?$/i.test(arguments[0]))?this.sort(!arguments.length||/^a([sc]{2})?$/i.test(arguments[0])?h:k):this.sort()}})}})();
/* end */
jsFiddle Array.prototype.smartSort('asc|desc')
Use is simple! First make some crazy array like:
window.z = [ 'one', undefined, $('<span />'), 'two', null, 2, $('<div />', { id: 'Thing' }), $('<div />'), 4, $('<header />') ];
z.push(new Date('1/01/2011'));
z.push('three');
z.push(undefined);
z.push([ 'one', 'three', 'four' ]);
z.push([ 'one', 'three', 'five' ]);
z.push({ a: 'a', b: 'b' });
z.push({ name: 'bob', value: 'bill' });
z.push(new Date());
z.push({ john: 'jill', jack: 'june' });
z.push([ 'abc', 'def', [ 'abc', 'def', 'cba' ], [ 'cba', 'def', 'bca' ], 'cba' ]);
z.push([ 'cba', 'def', 'bca' ]);
z.push({ a: 'a', b: 'b', c: 'c' });
z.push({ a: 'a', b: 'b', c: 'd' });
Then simply sort it!
z.smartSort('asc'); // Ascending
z.smartSort('desc'); // Descending
Same as the preceding, except as just a simple method!
/* begin */
/* KEY NOTE! Method `smartSort` is appended to native `window` for global use. If you'd prefer a more local scope, simple change `window.smartSort` to `var smartSort` and place inside your class/method */
window.smartSort=function(){if(arguments){var a,b,c;for(c in arguments)arguments[c]instanceof Array&&(a=arguments[c],void 0==b&&(b="a")),"string"==typeof arguments[c]&&(b=/^a([sc]{2})?$/i.test(arguments[c])?"a":"d");if(a instanceof Array)return a.sort("a"==b?smartSort.asc:smartSort.desc)}return this.sort()};smartSort.asc=function(a,b){if(null==a||void 0==a)return 1;if(null==b||void 0==b)return-1;var c=typeof a,e=c+typeof b;if(/^numbernumber$/ig.test(e))return a-b;if(/^stringstring$/ig.test(e))return a> b;if(/(string|number){2}/ig.test(e))return/string/i.test(c)?1:-1;if(/number/ig.test(e)&&/object/ig.test(e)||/string/ig.test(e)&&/object/ig.test(e))return/object/i.test(c)?1:-1;if(/^objectobject$/ig.test(e)){a instanceof Array&&a.sort(smartSort.asc);b instanceof Array&&b.sort(smartSort.asc);if(a instanceof Date&&b instanceof Date)return a-b;if(a instanceof Array&&b instanceof Array){var e=Object.keys(a),g=Object.keys(b),e=smartSort(e.concat(g),"a"),d;for(d in e)if(c=e[d],a[c]!=b[c])return d=smartSort([a[c], b[c]],"a"),a[c]==d[0]?-1:1;var f=smartSort([a[Object.keys(a)[0]],b[Object.keys(b)[0]]],"a");return a[Object.keys(a)[0]]==f[0]?-1:1}if(a instanceof Element&&b instanceof Element){if(a.tagName==b.tagName)return e=smartSort([a.id,b.id],"a"),a.id==e[0]?1:-1;e=smartSort([a.tagName,b.tagName],"a");return a.tagName==e[0]?1:-1}if(a instanceof Date||b instanceof Date)return a instanceof Date?1:-1;if(a instanceof Array||b instanceof Array)return a instanceof Array?-1:1;e=Object.keys(a);g=Object.keys(b);smartSort(e.concat(g), "a");for(c=0;20>c;c++){d=e[c];f=g[c];if(a.hasOwnProperty(d)&&b.hasOwnProperty(f)){if(a[d]instanceof Element&&b[f]instanceof Element){if(a[d].tagName==b[f].tagName)return c=smartSort([a[d].id,b[f].id],"a"),a[d].id==c[0]?-1:1;c=smartSort([a[d].tagName,b[f].tagName],"a");return a[d].tagName==c[0]?-1:1}if(a[d]instanceof Element||b[f]instanceof Element)return a[d]instanceof Element?1:-1;if(a[d]!=b[f])return c=smartSort([a[d],b[f]],"a"),a[d]==c[0]?-1:1}if(a.hasOwnProperty(d)&&a[d]instanceof Element)return 1; if(b.hasOwnProperty(f)&&b[f]instanceof Element||!a.hasOwnProperty(d))return-1;if(!b.hasOwnProperty(d))return 1}c=smartSort([a[Object.keys(a)[0]],b[Object.keys(b)[0]]],"a");return a[Object.keys(a)[0]]==c[0]?1:-1}g=[a,b].sort();return g[0]>g[1]};smartSort.desc=function(a,b){if(null==a||void 0==a)return 1;if(null==b||void 0==b)return-1;var c=typeof a,e=c+typeof b;if(/^numbernumber$/ig.test(e))return b-a;if(/^stringstring$/ig.test(e))return b>a;if(/(string|number){2}/ig.test(e))return/string/i.test(c)? 1:-1;if(/number/ig.test(e)&&/object/ig.test(e)||/string/ig.test(e)&&/object/ig.test(e))return/object/i.test(c)?1:-1;if(/^objectobject$/ig.test(e)){a instanceof Array&&a.sort(smartSort.desc);b instanceof Array&&b.sort(smartSort.desc);if(a instanceof Date&&b instanceof Date)return b-a;if(a instanceof Array&&b instanceof Array){var e=Object.keys(a),g=Object.keys(b),e=smartSort(e.concat(g),"a"),d;for(d in e)if(c=e[d],a[c]!=b[c])return d=smartSort([a[c],b[c]],"d"),a[c]==d[0]?-1:1;var f=smartSort([a[Object.keys(a)[0]], b[Object.keys(b)[0]]],"d");return a[Object.keys(a)[0]]==f[0]?-1:1}if(a instanceof Element&&b instanceof Element){if(a.tagName==b.tagName)return e=smartSort([a.id,b.id],"d"),a.id==e[0]?-1:1;e=smartSort([a.tagName,b.tagName],"d");return a.tagName==e[0]?-1:1}if(a instanceof Date||b instanceof Date)return a instanceof Date?1:-1;if(a instanceof Array||b instanceof Array)return a instanceof Array?-1:1;e=Object.keys(a);g=Object.keys(b);smartSort(e.concat(g),"a");for(c=0;20>c;c++){d=e[c];f=g[c];if(a.hasOwnProperty(d)&& b.hasOwnProperty(f)){if(a[d]instanceof Element&&b[f]instanceof Element){if(a[d].tagName==b[f].tagName)return c=smartSort([a[d].id,b[f].id],"d"),a[d].id==c[0]?-1:1;c=smartSort([a[d].tagName,b[f].tagName],"d");return a[d].tagName==c[0]?-1:1}if(a[d]instanceof Element||b[f]instanceof Element)return a[d]instanceof Element?1:-1;if(a[d]!=b[f])return c=smartSort([a[d],b[f]],"d"),a[d]==c[0]?-1:1}if(a.hasOwnProperty(d)&&a[d]instanceof Element)return 1;if(b.hasOwnProperty(f)&&b[f]instanceof Element)return-1; if(!a.hasOwnProperty(d))return 1;if(!b.hasOwnProperty(d))return-1}c=smartSort([a[Object.keys(a)[0]],b[Object.keys(b)[0]]],"d");return a[Object.keys(a)[0]]==c[0]?-1:1}g=[a,b].sort();return g[0]<g[1]}
/* end */
Use:
z = smartSort(z, 'asc'); // Ascending
z = smartSort(z, 'desc'); // Descending
Use Random.nextInt(int).
In your case it would look something like this:
a[i][j] = r.nextInt(101);
npm install --save randomatic
var randomize = require('randomatic');
randomize(pattern, length, options);
Example:
To generate a 10-character randomized string using all available characters:
randomize('*', 10);
//=> 'x2_^-5_T[$'
randomize('Aa0!', 10);
//=> 'LV3u~BSGhw'
a: Lowercase alpha characters (abcdefghijklmnopqrstuvwxyz'
A: Uppercase alpha characters (ABCDEFGHIJKLMNOPQRSTUVWXYZ')
0: Numeric characters (0123456789')
!: Special characters (~!@#$%^&()_+-={}[];\',.)
*: All characters (all of the above combined)
?: Custom characters (pass a string of custom characters to the options)
private int getRandomNumber(int min,int max) {
return (new Random()).nextInt((max - min) + 1) + min;
}
I did not like any of the answers here, so I created a function that worked for me. Just want to share in case anyone else finds it useful.
function getFormattedCurrency(num) {
num = num.toFixed(2)
var cents = (num - Math.floor(num)).toFixed(2);
return Math.floor(num).toLocaleString() + '.' + cents.split('.')[1];
}
If you use jQuery:
$.isNumeric('1234'); // true
$.isNumeric('1ab4'); // false
Try this
function pad (str, max) {
return str.length < max ? pad("0" + str, max) : str;
}
alert(pad("5", 2));
Example
Or
var number = 5;
var i;
if (number < 10) {
alert("0"+number);
}
Example
The best way to force the use of a number composed of digits only:
<input type="number" onkeydown="javascript: return event.keyCode === 8 ||_x000D_
event.keyCode === 46 ? true : !isNaN(Number(event.key))" />
_x000D_
To allow number keys only:
isNaN(Number(event.key))
but accept "Backspace" (keyCode: 8) and "Delete" (keyCode: 46) ...
Any of the following extension methods will do the job. All of them consider the minus sign as a digit, and work correctly for all possible input values. They also work for .NET Framework and for .NET Core. There are however relevant performance differences (discussed below), depending on your choice of Platform / Framework.
Int32 version:
public static class Int32Extensions
{
// IF-CHAIN:
public static int Digits_IfChain(this int n)
{
if (n >= 0)
{
if (n < 10) return 1;
if (n < 100) return 2;
if (n < 1000) return 3;
if (n < 10000) return 4;
if (n < 100000) return 5;
if (n < 1000000) return 6;
if (n < 10000000) return 7;
if (n < 100000000) return 8;
if (n < 1000000000) return 9;
return 10;
}
else
{
if (n > -10) return 2;
if (n > -100) return 3;
if (n > -1000) return 4;
if (n > -10000) return 5;
if (n > -100000) return 6;
if (n > -1000000) return 7;
if (n > -10000000) return 8;
if (n > -100000000) return 9;
if (n > -1000000000) return 10;
return 11;
}
}
// USING LOG10:
public static int Digits_Log10(this int n) =>
n == 0 ? 1 : (n > 0 ? 1 : 2) + (int)Math.Log10(Math.Abs((double)n));
// WHILE LOOP:
public static int Digits_While(this int n)
{
int digits = n < 0 ? 2 : 1;
while ((n /= 10) != 0) ++digits;
return digits;
}
// STRING CONVERSION:
public static int Digits_String(this int n) =>
n.ToString().Length;
}
Int64 version:
public static class Int64Extensions
{
// IF-CHAIN:
public static int Digits_IfChain(this long n)
{
if (n >= 0)
{
if (n < 10L) return 1;
if (n < 100L) return 2;
if (n < 1000L) return 3;
if (n < 10000L) return 4;
if (n < 100000L) return 5;
if (n < 1000000L) return 6;
if (n < 10000000L) return 7;
if (n < 100000000L) return 8;
if (n < 1000000000L) return 9;
if (n < 10000000000L) return 10;
if (n < 100000000000L) return 11;
if (n < 1000000000000L) return 12;
if (n < 10000000000000L) return 13;
if (n < 100000000000000L) return 14;
if (n < 1000000000000000L) return 15;
if (n < 10000000000000000L) return 16;
if (n < 100000000000000000L) return 17;
if (n < 1000000000000000000L) return 18;
return 19;
}
else
{
if (n > -10L) return 2;
if (n > -100L) return 3;
if (n > -1000L) return 4;
if (n > -10000L) return 5;
if (n > -100000L) return 6;
if (n > -1000000L) return 7;
if (n > -10000000L) return 8;
if (n > -100000000L) return 9;
if (n > -1000000000L) return 10;
if (n > -10000000000L) return 11;
if (n > -100000000000L) return 12;
if (n > -1000000000000L) return 13;
if (n > -10000000000000L) return 14;
if (n > -100000000000000L) return 15;
if (n > -1000000000000000L) return 16;
if (n > -10000000000000000L) return 17;
if (n > -100000000000000000L) return 18;
if (n > -1000000000000000000L) return 19;
return 20;
}
}
// USING LOG10:
public static int Digits_Log10(this long n) =>
n == 0L ? 1 : (n > 0L ? 1 : 2) + (int)Math.Log10(Math.Abs((double)n));
// WHILE LOOP:
public static int Digits_While(this long n)
{
int digits = n < 0 ? 2 : 1;
while ((n /= 10L) != 0L) ++digits;
return digits;
}
// STRING CONVERSION:
public static int Digits_String(this long n) =>
n.ToString().Length;
}
This answer includes tests performed for both Int32
and Int64
types, using an array of 100.000.000
randomly sampled int
/ long
numbers. The random dataset is pre-processed into an array before executing the tests.
Consistency tests among the 4 different methods were also executed, for MinValue
, negative border cases, -1
, 0
, 1
, positive border cases, MaxValue
, and also for the whole random dataset. No consistency tests fail for the above provided methods, EXCEPT for the LOG10 method (this is discussed later).
The tests were executed on .NET Framework 4.7.2
and .NET Core 2.2
; for x86
and x64
platforms, on a 64-bit Intel Processor machine, with Windows 10
, and with VS2017 v.15.9.17
. The following 4 cases have the same effect on performance results:
.NET Framework (x86)
Platform = x86
Platform = AnyCPU
, Prefer 32-bit
is checked in project settings
.NET Framework (x64)
Platform = x64
Platform = AnyCPU
, Prefer 32-bit
is unchecked in project settings
.NET Core (x86)
"C:\Program Files (x86)\dotnet\dotnet.exe" bin\Release\netcoreapp2.2\ConsoleApp.dll
"C:\Program Files (x86)\dotnet\dotnet.exe" bin\x86\Release\netcoreapp2.2\ConsoleApp.dll
.NET Core (x64)
"C:\Program Files\dotnet\dotnet.exe" bin\Release\netcoreapp2.2\ConsoleApp.dll
"C:\Program Files\dotnet\dotnet.exe" bin\x64\Release\netcoreapp2.2\ConsoleApp.dll
The performance tests below produce a uniform distribution of values among the wide range of values an integer could assume. This means there is a much higher chance of testing values with a big count of digits. In real life scenarios, most values may be small, so the IF-CHAIN should perform even better. Furthermore, the processor will cache and optimize the IF-CHAIN decisions according to your dataset.
As @AlanSingfield pointed out in the comment section, the LOG10 method had to be fixed with a casting to double
inside Math.Abs()
for the case when the input value is int.MinValue
or long.MinValue
.
Regarding the early performance tests I've implemented before editing this question (it had to be edited a million times already), there was a specific case pointed out by @GyörgyKoszeg, in which the IF-CHAIN method performs slower than the LOG10 method.
This still happens, although the magnitude of the difference became much lower after the fix for the issue pointed out by @AlanSingfield. This fix (adding a cast to double
) causes a computation error when the input value is exactly -999999999999999999
: the LOG10 method returns 20
instead of 19
. The LOG10 method also must have a if
guard for the case when the input value is zero.
The LOG10 method is quite tricky to get working for all values, which means you should avoid it. If someone finds a way to make it work correctly for all the consistency tests below, please post a comment!
The WHILE method also got a recent refactored version which is faster, but it is still slow for Platform = x86
(I could not find the reason why, until now).
The STRING method is consistently slow: it greedily allocates too much memory for nothing. Interestingly, in .NET Core, string allocation seems to be much faster than in .NET Framework. Good to know.
The IF-CHAIN method should outperform all other methods in 99.99% of the cases; and, in my personal opinion, is your best choice (considering all the adjusts necessary to make the LOG10 method work correctly, and the bad performance of the other two methods).
Finally, the results are:
Since these results are hardware-dependent, I recommend anyway running the performance tests below on your own computer if you really need to be 100% sure in your specific case.
Below is the code for the performance test, and the consistency test too. The same code is used for both .NET Framework and .NET Core.
using System;
using System.Diagnostics;
namespace NumberOfDigits
{
// Performance Tests:
class Program
{
private static void Main(string[] args)
{
Console.WriteLine("\r\n.NET Core");
RunTests_Int32();
RunTests_Int64();
}
// Int32 Performance Tests:
private static void RunTests_Int32()
{
Console.WriteLine("\r\nInt32");
const int size = 100000000;
int[] samples = new int[size];
Random random = new Random((int)DateTime.Now.Ticks);
for (int i = 0; i < size; ++i)
samples[i] = random.Next(int.MinValue, int.MaxValue);
Stopwatch sw1 = new Stopwatch();
sw1.Start();
for (int i = 0; i < size; ++i) samples[i].Digits_IfChain();
sw1.Stop();
Console.WriteLine($"IfChain: {sw1.ElapsedMilliseconds} ms");
Stopwatch sw2 = new Stopwatch();
sw2.Start();
for (int i = 0; i < size; ++i) samples[i].Digits_Log10();
sw2.Stop();
Console.WriteLine($"Log10: {sw2.ElapsedMilliseconds} ms");
Stopwatch sw3 = new Stopwatch();
sw3.Start();
for (int i = 0; i < size; ++i) samples[i].Digits_While();
sw3.Stop();
Console.WriteLine($"While: {sw3.ElapsedMilliseconds} ms");
Stopwatch sw4 = new Stopwatch();
sw4.Start();
for (int i = 0; i < size; ++i) samples[i].Digits_String();
sw4.Stop();
Console.WriteLine($"String: {sw4.ElapsedMilliseconds} ms");
// Start of consistency tests:
Console.WriteLine("Running consistency tests...");
bool isConsistent = true;
// Consistency test on random set:
for (int i = 0; i < samples.Length; ++i)
{
int s = samples[i];
int a = s.Digits_IfChain();
int b = s.Digits_Log10();
int c = s.Digits_While();
int d = s.Digits_String();
if (a != b || c != d || a != c)
{
Console.WriteLine($"Digits({s}): IfChain={a} Log10={b} While={c} String={d}");
isConsistent = false;
break;
}
}
// Consistency test of special values:
samples = new int[]
{
0,
int.MinValue, -1000000000, -999999999, -100000000, -99999999, -10000000, -9999999, -1000000, -999999, -100000, -99999, -10000, -9999, -1000, -999, -100, -99, -10, -9, - 1,
int.MaxValue, 1000000000, 999999999, 100000000, 99999999, 10000000, 9999999, 1000000, 999999, 100000, 99999, 10000, 9999, 1000, 999, 100, 99, 10, 9, 1,
};
for (int i = 0; i < samples.Length; ++i)
{
int s = samples[i];
int a = s.Digits_IfChain();
int b = s.Digits_Log10();
int c = s.Digits_While();
int d = s.Digits_String();
if (a != b || c != d || a != c)
{
Console.WriteLine($"Digits({s}): IfChain={a} Log10={b} While={c} String={d}");
isConsistent = false;
break;
}
}
// Consistency test result:
if (isConsistent)
Console.WriteLine("Consistency tests are OK");
}
// Int64 Performance Tests:
private static void RunTests_Int64()
{
Console.WriteLine("\r\nInt64");
const int size = 100000000;
long[] samples = new long[size];
Random random = new Random((int)DateTime.Now.Ticks);
for (int i = 0; i < size; ++i)
samples[i] = Math.Sign(random.Next(-1, 1)) * (long)(random.NextDouble() * long.MaxValue);
Stopwatch sw1 = new Stopwatch();
sw1.Start();
for (int i = 0; i < size; ++i) samples[i].Digits_IfChain();
sw1.Stop();
Console.WriteLine($"IfChain: {sw1.ElapsedMilliseconds} ms");
Stopwatch sw2 = new Stopwatch();
sw2.Start();
for (int i = 0; i < size; ++i) samples[i].Digits_Log10();
sw2.Stop();
Console.WriteLine($"Log10: {sw2.ElapsedMilliseconds} ms");
Stopwatch sw3 = new Stopwatch();
sw3.Start();
for (int i = 0; i < size; ++i) samples[i].Digits_While();
sw3.Stop();
Console.WriteLine($"While: {sw3.ElapsedMilliseconds} ms");
Stopwatch sw4 = new Stopwatch();
sw4.Start();
for (int i = 0; i < size; ++i) samples[i].Digits_String();
sw4.Stop();
Console.WriteLine($"String: {sw4.ElapsedMilliseconds} ms");
// Start of consistency tests:
Console.WriteLine("Running consistency tests...");
bool isConsistent = true;
// Consistency test on random set:
for (int i = 0; i < samples.Length; ++i)
{
long s = samples[i];
int a = s.Digits_IfChain();
int b = s.Digits_Log10();
int c = s.Digits_While();
int d = s.Digits_String();
if (a != b || c != d || a != c)
{
Console.WriteLine($"Digits({s}): IfChain={a} Log10={b} While={c} String={d}");
isConsistent = false;
break;
}
}
// Consistency test of special values:
samples = new long[]
{
0,
long.MinValue, -1000000000000000000, -999999999999999999, -100000000000000000, -99999999999999999, -10000000000000000, -9999999999999999, -1000000000000000, -999999999999999, -100000000000000, -99999999999999, -10000000000000, -9999999999999, -1000000000000, -999999999999, -100000000000, -99999999999, -10000000000, -9999999999, -1000000000, -999999999, -100000000, -99999999, -10000000, -9999999, -1000000, -999999, -100000, -99999, -10000, -9999, -1000, -999, -100, -99, -10, -9, - 1,
long.MaxValue, 1000000000000000000, 999999999999999999, 100000000000000000, 99999999999999999, 10000000000000000, 9999999999999999, 1000000000000000, 999999999999999, 100000000000000, 99999999999999, 10000000000000, 9999999999999, 1000000000000, 999999999999, 100000000000, 99999999999, 10000000000, 9999999999, 1000000000, 999999999, 100000000, 99999999, 10000000, 9999999, 1000000, 999999, 100000, 99999, 10000, 9999, 1000, 999, 100, 99, 10, 9, 1,
};
for (int i = 0; i < samples.Length; ++i)
{
long s = samples[i];
int a = s.Digits_IfChain();
int b = s.Digits_Log10();
int c = s.Digits_While();
int d = s.Digits_String();
if (a != b || c != d || a != c)
{
Console.WriteLine($"Digits({s}): IfChain={a} Log10={b} While={c} String={d}");
isConsistent = false;
break;
}
}
// Consistency test result:
if (isConsistent)
Console.WriteLine("Consistency tests are OK");
}
}
}
Use the BigInteger
class that is a part of the Java library.
http://java.sun.com/j2se/1.5.0/docs/api/java/math/BigInteger.html
Using the type="email"
or type="url"
will give you a keyboard on some phones at least, such as iPhone. For phone numbers, you can use type="tel"
.
which(df==my.val, arr.ind=TRUE)
Copy this function in any module inside your vb.net project.
Public Function MakeTextBoxNumeric(kcode As Integer, shift As Boolean) As Boolean
If kcode >= 96 And kcode <= 105 Then
ElseIf kcode >= 48 And kcode <= 57
If shift = True Then Return False
ElseIf kcode = 8 Or kcode = 107 Then
ElseIf kcode = 187 Then
If shift = False Then Return False
Else
Return False
End If
Return True
End Function
Then use this function inside your textbox_keydown event like below:
Private Sub txtboxNumeric_KeyDown(sender As Object, e As KeyEventArgs) Handles txtboxNumeric.KeyDown
If MakeTextBoxNumeric(e.KeyCode, e.Shift) = False Then e.SuppressKeyPress = True
End Sub
And yes. It works 100% :)
I've been searching the internet for RNG for a while now. Everything I saw was either TOO complex or was just not what I was looking for. After reading a few articles I was able to come up with this simple code.
{
Random rnd = new Random(DateTime.Now.Millisecond);
int[] b = new int[10] { 5, 8, 1, 7, 3, 2, 9, 0, 4, 6 };
textBox1.Text = Convert.ToString(b[rnd.Next(10)])
}
Simple explanation,
This works well.
To obtain a random number less than 100 use
{
Random rnd = new Random(DateTime.Now.Millisecond);
int[] b = new int[10] { 5, 8, 1, 7, 3, 2, 9, 0, 4, 6 };
int[] d = new int[10] { 9, 4, 7, 2, 8, 0, 5, 1, 3, 4 };
textBox1.Text = Convert.ToString(b[rnd.Next(10)]) + Convert.ToString(d[rnd.Next(10)]);
}
and so on for 3, 4, 5, and 6 ... digit random numbers.
Hope this assists someone positively.
This one is roughly based on ItzWarty's answer, but it runs in logn time! Caveat: Only works for integers.
Boolean isPositive(int a)
{
if(a == -1) return false;
if(a == 0) return false;
if(a == 1) return true;
return isPositive(a/2);
}
Method toFixed()
will also solves the purpose.
var n = 8.434332;
n.toFixed(2) // 8.43
print "%02d"%a
is the python 2 variant
python 3 uses a somewhat more verbose formatting system:
"{0:0=2d}".format(a)
The relevant doc link for python2 is: http://docs.python.org/2/library/string.html#format-specification-mini-language
For python3, it's http://docs.python.org/3/library/string.html#string-formatting
For <input type=number>
, by the HTML5 CR, the size
attribute is not allowed. However, in Obsolete features it says: “Authors should not, but may despite requirements to the contrary elsewhere in this specification, specify the maxlength and size attributes on input elements whose type attributes are in the Number state. One valid reason for using these attributes regardless is to help legacy user agents that do not support input elements with type="number" to still render the text field with a useful width.”
Thus, the size
attribute can be used, but it only affects older browsers that do not support type=number
, so that the element falls back to a simple text control, <input type=text>
.
The rationale behind this is that the browser is expected to provide a user interface that takes the other attributes into account, for good usability. As the implementations may vary, any size imposed by an author might mess things up. (This also applies to setting the width of the control in CSS.)
The conclusion is that you should use <input type=number>
in a more or less fluid setup that does not make any assumptions about the dimensions of the element.
Alternatively,
$padded = sprintf('%0.2f', $unpadded); // 520 -> 520.00
As an alternative to @Mark Byers' approach, you can use while True
:
guess = 50 # this should be outside the loop, I think
while True: # infinite loop
n = raw_input("\n\nTrue, False or Correct?: ")
if n == "Correct":
break # stops the loop
elif n == "True":
# etc.
In a comment on @paxdiablo's answer, you asked:
"So basically, is it better to use Double than Float?"
That is a complicated question. I will deal with it in two parts
double
versus float
On the one hand, a double
occupies 8 bytes versus 4 bytes for a float
. If you have many of them, this may be significant, though it may also have no impact. (Consider the case where the values are in fields or local variables on a 64bit machine, and the JVM aligns them on 64 bit boundaries.) Additionally, floating point arithmetic with double
values is typically slower than with float
values ... though once again this is hardware dependent.
On the other hand, a double
can represent larger (and smaller) numbers than a float
and can represent them with more than twice the precision. For the details, refer to Wikipedia.
The tricky question is knowing whether you actually need the extra range and precision of a double
. In some cases it is obvious that you need it. In others it is not so obvious. For instance if you are doing calculations such as inverting a matrix or calculating a standard deviation, the extra precision may be critical. On the other hand, in some cases not even double
is going to give you enough precision. (And beware of the trap of expecting float
and double
to give you an exact representation. They won't and they can't!)
There is a branch of mathematics called Numerical Analysis that deals with the effects of rounding error, etc in practical numerical calculations. It used to be a standard part of computer science courses ... back in the 1970's.
Double
versus Float
For the Double
versus Float
case, the issues of precision and range are the same as for double
versus float
, but the relative performance measures will be slightly different.
A Double
(on a 32 bit machine) typically takes 16 bytes + 4 bytes for the reference, compared with 12 + 4 bytes for a Float
. Compare this to 8 bytes versus 4 bytes for the double
versus float
case. So the ratio is 5 to 4 versus 2 to 1.
Arithmetic involving Double
and Float
typically involves dereferencing the pointer and creating a new object to hold the result (depending on the circumstances). These extra overheads also affect the ratios in favor of the Double
case.
Having said all that, the most important thing is correctness, and this typically means getting the most accurate answer. And even if accuracy is not critical, it is usually not wrong to be "too accurate". So, the simple "rule of thumb" is to use double
in preference to float
, UNLESS there is an overriding performance requirement, AND you have solid evidence that using float
will make a difference with respect to that requirement.
In python3 the following works:
>>> v=10.4
>>> print('% 6.2f' % v)
10.40
>>> print('% 12.1f' % v)
10.4
>>> print('%012.1f' % v)
0000000010.4
You can use an <input type="number" />
. This will only allow numbers to be entered into othe input box.
Example: http://jsfiddle.net/SPqY3/
Please note that the input type="number"
tag is only supported in newer browsers.
For firefox, you can validate the input by using javascript:
Update 2018-03-12: Browser support is much better now it's supported by the following:
$(document).ready(function(){
$('#shares').val('');
});
Not tested, but probably something like if(preg_match("/^[0-9,]+$/", $a)) $a = str_replace(...)
Do it the other way around:
$a = "1,435";
$b = str_replace( ',', '', $a );
if( is_numeric( $b ) ) {
$a = $b;
}
The easiest would be:
$var = intval(preg_replace('/[^\d.]/', '', $var));
or if you need float:
$var = floatval(preg_replace('/[^\d.]/', '', $var));
just write
<input type="number" step="0.1" lang="nb">
lang='nb" let you write your decimal numbers with comma or period
There are only 4 specific atrributes:
So you cannot control length of what user type by keyword. But the implementation of browsers may change.
Thanks to everyone for their replies. I have built off of some of the answers to make a more "one-size-fits-all" solution.
The first snippet adds a function that mimics PHP's number_format()
to the Number prototype. If I am formatting a number, I usually want decimal places so the function takes in the number of decimal places to show. Some countries use commas as the decimal and decimals as the thousands separator so the function allows these separators to be set.
Number.prototype.numberFormat = function(decimals, dec_point, thousands_sep) {
dec_point = typeof dec_point !== 'undefined' ? dec_point : '.';
thousands_sep = typeof thousands_sep !== 'undefined' ? thousands_sep : ',';
var parts = this.toFixed(decimals).split('.');
parts[0] = parts[0].replace(/\B(?=(\d{3})+(?!\d))/g, thousands_sep);
return parts.join(dec_point);
}
You would use this as follows:
var foo = 5000;
console.log(foo.numberFormat(2)); // us format: 5,000.00
console.log(foo.numberFormat(2, ',', '.')); // european format: 5.000,00
I found that I often needed to get the number back for math operations, but parseFloat converts 5,000 to 5, simply taking the first sequence of integer values. So I created my own float conversion function and added it to the String prototype.
String.prototype.getFloat = function(dec_point, thousands_sep) {
dec_point = typeof dec_point !== 'undefined' ? dec_point : '.';
thousands_sep = typeof thousands_sep !== 'undefined' ? thousands_sep : ',';
var parts = this.split(dec_point);
var re = new RegExp("[" + thousands_sep + "]");
parts[0] = parts[0].replace(re, '');
return parseFloat(parts.join(dec_point));
}
Now you can use both functions as follows:
var foo = 5000;
var fooString = foo.numberFormat(2); // The string 5,000.00
var fooFloat = fooString.getFloat(); // The number 5000;
console.log((fooString.getFloat() + 1).numberFormat(2)); // The string 5,001.00
but as for this method, I don't understand the purpose of Integer.MAX_VALUE and Integer.MIN_VALUE.
By starting out with smallest
set to Integer.MAX_VALUE
and largest
set to Integer.MIN_VALUE
, they don't have to worry later about the special case where smallest
and largest
don't have a value yet. If the data I'm looking through has a 10
as the first value, then numbers[i]<smallest
will be true (because 10
is <
Integer.MAX_VALUE
) and we'll update smallest
to be 10
. Similarly, numbers[i]>largest
will be true
because 10
is >
Integer.MIN_VALUE
and we'll update largest
. And so on.
Of course, when doing this, you must ensure that you have at least one value in the data you're looking at. Otherwise, you end up with apocryphal numbers in smallest
and largest
.
Note the point Onome Sotu makes in the comments:
...if the first item in the array is larger than the rest, then the largest item will always be Integer.MIN_VALUE because of the else-if statement.
Which is true; here's a simpler example demonstrating the problem (live copy):
public class Example
{
public static void main(String[] args) throws Exception {
int[] values = {5, 1, 2};
int smallest = Integer.MAX_VALUE;
int largest = Integer.MIN_VALUE;
for (int value : values) {
if (value < smallest) {
smallest = value;
} else if (value > largest) {
largest = value;
}
}
System.out.println(smallest + ", " + largest); // 1, 2 -- WRONG
}
}
To fix it, either:
Don't use else
, or
Start with smallest
and largest
equal to the first element, and then loop the remaining elements, keeping the else if
.
Here's an example of that second one (live copy):
public class Example
{
public static void main(String[] args) throws Exception {
int[] values = {5, 1, 2};
int smallest = values[0];
int largest = values[0];
for (int n = 1; n < values.length; ++n) {
int value = values[n];
if (value < smallest) {
smallest = value;
} else if (value > largest) {
largest = value;
}
}
System.out.println(smallest + ", " + largest); // 1, 5
}
}
As every time I encounter an issue with the check is because the str can be None sometimes, and if the str can be None, only use str.isdigit() is not enough as you will get an error
AttributeError: 'NoneType' object has no attribute 'isdigit'
and then you need to first validate the str is None or not. To avoid a multi-if branch, a clear way to do this is:
if str and str.isdigit():
Hope this helps for people have the same issue like me.
A fixed point number has a specific number of bits (or digits) reserved for the integer part (the part to the left of the decimal point) and a specific number of bits reserved for the fractional part (the part to the right of the decimal point). No matter how large or small your number is, it will always use the same number of bits for each portion. For example, if your fixed point format was in decimal IIIII.FFFFF
then the largest number you could represent would be 99999.99999
and the smallest non-zero number would be 00000.00001
. Every bit of code that processes such numbers has to have built-in knowledge of where the decimal point is.
A floating point number does not reserve a specific number of bits for the integer part or the fractional part. Instead it reserves a certain number of bits for the number (called the mantissa or significand) and a certain number of bits to say where within that number the decimal place sits (called the exponent). So a floating point number that took up 10 digits with 2 digits reserved for the exponent might represent a largest value of 9.9999999e+50
and a smallest non-zero value of 0.0000001e-49
.
The shortest way to create a number that you can be pretty sure will be unique among as many separate instances as you can think of is
Date.now() + Math.random()
If there is a 1 millisecond difference in function call, it is 100% guaranteed to generate a different number. For function calls within the same millisecond you should only start to be worried if you are creating more than a few million numbers within this same millisecond, which is not very probable.
For more on the probability of getting a repeated number within the same millisecond see https://stackoverflow.com/a/28220928/4617597
function invertSign($value)
{
return -$value;
}
Testing this Javascript:
var arr = [1234563995.721, 12345691212.718, 1234568421.5891, 12345677093.49284];
var sum = 0;
for( var i = 0; i < arr.length; i++ ) {
sum += arr[i];
}
alert( "fMath(sum) = " + Math.round( sum * 1e12 ) / 1e12 );
alert( "fFixed(sum) = " + sum.toFixed( 5 ) );
Dont use Math.round( (## + ## + ... + ##) * 1e12) / 1e12
Instead, use ( ## + ## + ... + ##).toFixed(5) )
In IE 9, toFixed
works very well.
Firstly, as Etienne says, float
in C# is Single
. It is just the C# keyword for that data type.
So you can definitely do this:
float f = 13.5f;
string s = f.ToString("R");
Secondly, you have referred a couple of times to the number's "format"; numbers don't have formats, they only have values. Strings have formats. Which makes me wonder: what is this thing you have that has a format but is not a string? The closest thing I can think of would be decimal
, which does maintain its own precision; however, calling simply decimal.ToString
should have the effect you want in that case.
How about including some example code so we can see exactly what you're doing, and why it isn't achieving what you want?
If it's to validate method parameters, none of the solutions throw ArgumentOutOfRangeException and allow easy/proper configuration of inclusive/exclusive min/max values.
Use like this
public void Start(int pos)
{
pos.CheckRange(nameof(pos), min: 0);
if (pos.IsInRange(max: 100, maxInclusive: false))
{
// ...
}
}
I just wrote these beautiful functions. It also has the advantage of having no branching (a single if) for valid values. The hardest part is to craft the proper exception messages.
/// <summary>
/// Returns whether specified value is in valid range.
/// </summary>
/// <typeparam name="T">The type of data to validate.</typeparam>
/// <param name="value">The value to validate.</param>
/// <param name="min">The minimum valid value.</param>
/// <param name="minInclusive">Whether the minimum value is valid.</param>
/// <param name="max">The maximum valid value.</param>
/// <param name="maxInclusive">Whether the maximum value is valid.</param>
/// <returns>Whether the value is within range.</returns>
public static bool IsInRange<T>(this T value, T? min = null, bool minInclusive = true, T? max = null, bool maxInclusive = true)
where T : struct, IComparable<T>
{
var minValid = min == null || (minInclusive && value.CompareTo(min.Value) >= 0) || (!minInclusive && value.CompareTo(min.Value) > 0);
var maxValid = max == null || (maxInclusive && value.CompareTo(max.Value) <= 0) || (!maxInclusive && value.CompareTo(max.Value) < 0);
return minValid && maxValid;
}
/// <summary>
/// Validates whether specified value is in valid range, and throws an exception if out of range.
/// </summary>
/// <typeparam name="T">The type of data to validate.</typeparam>
/// <param name="value">The value to validate.</param>
/// <param name="name">The name of the parameter.</param>
/// <param name="min">The minimum valid value.</param>
/// <param name="minInclusive">Whether the minimum value is valid.</param>
/// <param name="max">The maximum valid value.</param>
/// <param name="maxInclusive">Whether the maximum value is valid.</param>
/// <returns>The value if valid.</returns>
public static T CheckRange<T>(this T value, string name, T? min = null, bool minInclusive = true, T? max = null, bool maxInclusive = true)
where T : struct, IComparable<T>
{
if (!value.IsInRange(min, minInclusive, max, maxInclusive))
{
if (min.HasValue && minInclusive && max.HasValue && maxInclusive)
{
var message = "{0} must be between {1} and {2}.";
throw new ArgumentOutOfRangeException(name, value, message.FormatInvariant(name, min, max));
}
else
{
var messageMin = min.HasValue ? GetOpText(true, minInclusive).FormatInvariant(min) : null;
var messageMax = max.HasValue ? GetOpText(false, maxInclusive).FormatInvariant(max) : null;
var message = (messageMin != null && messageMax != null) ?
"{0} must be {1} and {2}." :
"{0} must be {1}.";
throw new ArgumentOutOfRangeException(name, value, message.FormatInvariant(name, messageMin ?? messageMax, messageMax));
}
}
return value;
}
private static string GetOpText(bool greaterThan, bool inclusive)
{
return (greaterThan && inclusive) ? "greater than or equal to {0}" :
greaterThan ? "greater than {0}" :
inclusive ? "less than or equal to {0}" :
"less than {0}";
}
public static string FormatInvariant(this string format, params object?[] args) => string.Format(CultureInfo.InvariantCulture, format, args);
use the val() function
It might help who is looking for the same solution.
select * from tablename ORDER BY ABS(column_name)
simply multiplying by -1 works in both ways ...
>>> -10 * -1
10
>>> 10 * -1
-10
Here are some solutions, all pass the test suite, test suite and benchmark included, if you want copy and paste to test, try This Gist.
Base on https://stackoverflow.com/a/14428340/1877620, but fix if there is no decimal point.
if (typeof Number.prototype.format === 'undefined') {
Number.prototype.format = function (precision) {
if (!isFinite(this)) {
return this.toString();
}
var a = this.toFixed(precision).split('.');
a[0] = a[0].replace(/\d(?=(\d{3})+$)/g, '$&,');
return a.join('.');
}
}
if (typeof Number.prototype.format1 === 'undefined') {
Number.prototype.format1 = function (precision) {
if (!isFinite(this)) {
return this.toString();
}
var a = this.toFixed(precision).split('.'),
// skip the '-' sign
head = Number(this < 0);
// skip the digits that's before the first thousands separator
head += (a[0].length - head) % 3 || 3;
a[0] = a[0].slice(0, head) + a[0].slice(head).replace(/\d{3}/g, ',$&');
return a.join('.');
};
}
if (typeof Number.prototype.format2 === 'undefined') {
Number.prototype.format2 = function (precision) {
if (!isFinite(this)) {
return this.toString();
}
var a = this.toFixed(precision).split('.');
a[0] = a[0]
.split('').reverse().join('')
.replace(/\d{3}(?=\d)/g, '$&,')
.split('').reverse().join('');
return a.join('.');
};
}
if (typeof Number.prototype.format3 === 'undefined') {
Number.prototype.format3 = function (precision) {
if (!isFinite(this)) {
return this.toString();
}
var a = this.toFixed(precision).split('');
a.push('.');
var i = a.indexOf('.') - 3;
while (i > 0 && a[i-1] !== '-') {
a.splice(i, 0, ',');
i -= 3;
}
a.pop();
return a.join('');
};
}
console.log('======== Demo ========')
var n = 0;
for (var i=1; i<20; i++) {
n = (n * 10) + (i % 10)/100;
console.log(n.format(2), (-n).format(2));
}
If we want custom thousands separator or decimal separator, use replace():
123456.78.format(2).replace(',', ' ').replace('.', ' ');
function assertEqual(a, b) {
if (a !== b) {
throw a + ' !== ' + b;
}
}
function test(format_function) {
console.log(format_function);
assertEqual('NaN', format_function.call(NaN, 0))
assertEqual('Infinity', format_function.call(Infinity, 0))
assertEqual('-Infinity', format_function.call(-Infinity, 0))
assertEqual('0', format_function.call(0, 0))
assertEqual('0.00', format_function.call(0, 2))
assertEqual('1', format_function.call(1, 0))
assertEqual('-1', format_function.call(-1, 0))
// decimal padding
assertEqual('1.00', format_function.call(1, 2))
assertEqual('-1.00', format_function.call(-1, 2))
// decimal rounding
assertEqual('0.12', format_function.call(0.123456, 2))
assertEqual('0.1235', format_function.call(0.123456, 4))
assertEqual('-0.12', format_function.call(-0.123456, 2))
assertEqual('-0.1235', format_function.call(-0.123456, 4))
// thousands separator
assertEqual('1,234', format_function.call(1234.123456, 0))
assertEqual('12,345', format_function.call(12345.123456, 0))
assertEqual('123,456', format_function.call(123456.123456, 0))
assertEqual('1,234,567', format_function.call(1234567.123456, 0))
assertEqual('12,345,678', format_function.call(12345678.123456, 0))
assertEqual('123,456,789', format_function.call(123456789.123456, 0))
assertEqual('-1,234', format_function.call(-1234.123456, 0))
assertEqual('-12,345', format_function.call(-12345.123456, 0))
assertEqual('-123,456', format_function.call(-123456.123456, 0))
assertEqual('-1,234,567', format_function.call(-1234567.123456, 0))
assertEqual('-12,345,678', format_function.call(-12345678.123456, 0))
assertEqual('-123,456,789', format_function.call(-123456789.123456, 0))
// thousands separator and decimal
assertEqual('1,234.12', format_function.call(1234.123456, 2))
assertEqual('12,345.12', format_function.call(12345.123456, 2))
assertEqual('123,456.12', format_function.call(123456.123456, 2))
assertEqual('1,234,567.12', format_function.call(1234567.123456, 2))
assertEqual('12,345,678.12', format_function.call(12345678.123456, 2))
assertEqual('123,456,789.12', format_function.call(123456789.123456, 2))
assertEqual('-1,234.12', format_function.call(-1234.123456, 2))
assertEqual('-12,345.12', format_function.call(-12345.123456, 2))
assertEqual('-123,456.12', format_function.call(-123456.123456, 2))
assertEqual('-1,234,567.12', format_function.call(-1234567.123456, 2))
assertEqual('-12,345,678.12', format_function.call(-12345678.123456, 2))
assertEqual('-123,456,789.12', format_function.call(-123456789.123456, 2))
}
console.log('======== Testing ========');
test(Number.prototype.format);
test(Number.prototype.format1);
test(Number.prototype.format2);
test(Number.prototype.format3);
function benchmark(f) {
var start = new Date().getTime();
f();
return new Date().getTime() - start;
}
function benchmark_format(f) {
console.log(f);
time = benchmark(function () {
for (var i = 0; i < 100000; i++) {
f.call(123456789, 0);
f.call(123456789, 2);
}
});
console.log(time.format(0) + 'ms');
}
async = [];
function next() {
setTimeout(function () {
f = async.shift();
f && f();
next();
}, 10);
}
console.log('======== Benchmark ========');
async.push(function () { benchmark_format(Number.prototype.format); });
async.push(function () { benchmark_format(Number.prototype.format1); });
async.push(function () { benchmark_format(Number.prototype.format2); });
async.push(function () { benchmark_format(Number.prototype.format3); });
next();
You have to use the TO_NUMBER function:
select * from exception where exception_value = to_number('105')
You can do the same on document ready
event like below
<script>
$(document).ready(function(){
var number = 112;
$("yourClass/Element/id...").html(number);
// $("yourClass/Element/id...").text(number);
});
</script>
or you can simply do it using document.write(number);
.
<input type="number" name="points" step="3">
Example: if step="3", legal numbers could be -3, 0, 3, 6, etc.
Tip: The step attribute can be used together with the max and min attributes to create a range of legal values.
Note: The step attribute works with the following input types: number, range, date, datetime, datetime-local, month, time and week.
Regarding the printout, here's how I would do it using the Format Specification Mini Language (section: Aligning the text and specifying a width):
Once you have your length, say length = 11
:
rowstring = '{{: ^{length:d}}}'.format(length = length) # center aligned, space-padded format string of length <length>
for i in xrange(length, 0, -2): # iterate from top to bottom with step size 2
print rowstring.format( '*' * i )
For negative number only, this is perfect.
^-\d*\.?\d+$
Using bashj (https://sourceforge.net/projects/bashj/ ), a bash mutant with java support, you just write (and it IS easy to read):
#!/usr/bin/bashj
#!java
static int doubleCompare(double a,double b) {return((a>b) ? 1 : (a<b) ? -1 : 0);}
#!bashj
num1=3.17648e-22
num2=1.5
comp=j.doubleCompare($num1,$num2)
if [ $comp == 0 ] ; then echo "Equal" ; fi
if [ $comp == 1 ] ; then echo "$num1 > $num2" ; fi
if [ $comp == -1 ] ; then echo "$num2 > $num1" ; fi
Of course bashj bash/java hybridation offers much more...
Another convoluted answer which should technically work and is ok for a small number of data points is to plot all your data points as 1 series in order to get your connecting line. Then plot each point as its own series. Then format data labels to display series name for each of the individual data points.
In short it works ok for a small data set or just key points from a data set.
To convert a string to a number, subtract 0. To convert a number to a string, add "" (the empty string).
5 + 1 will give you 6
(5 + "") + 1 will give you "51"
("5" - 0) + 1 will give you 6
Try something like this - it works for the cases you have mentioned.
select * from tbl
where answer like '%[0-9]%'
and answer not like '%[:]%'
and answer not like '%[A-Z]%'
You can use ICU4J, Just need to add POM entry and code is below for any Number, Country and Language.
POM Entry
<dependency>
<groupId>com.ibm.icu</groupId>
<artifactId>icu4j</artifactId>
<version>64.2</version>
</dependency>
Code is
public class TranslateNumberToWord {
/**
* Translate
*
* @param ctryCd
* @param lang
* @param reqStr
* @param fractionUnitName
* @return
*/
public static String translate(String ctryCd, String lang, String reqStr, String fractionUnitName) {
StringBuffer result = new StringBuffer();
Locale locale = new Locale(lang, ctryCd);
Currency crncy = Currency.getInstance(locale);
String inputArr[] = StringUtils.split(new BigDecimal(reqStr).abs().toPlainString(), ".");
RuleBasedNumberFormat rule = new RuleBasedNumberFormat(locale, RuleBasedNumberFormat.SPELLOUT);
int i = 0;
for (String input : inputArr) {
CurrencyAmount crncyAmt = new CurrencyAmount(new BigDecimal(input), crncy);
if (i++ == 0) {
result.append(rule.format(crncyAmt)).append(" " + crncy.getDisplayName() + " and ");
} else {
result.append(rule.format(crncyAmt)).append(" " + fractionUnitName + " ");
}
}
return result.toString();
}
public static void main(String[] args) {
String ctryCd = "US";
String lang = "en";
String input = "95.17";
String result = translate(ctryCd, lang, input, "Cents");
System.out.println("Input: " + input + " result: " + result);
}}
Tested with quite a big number and output would be
Input: 95.17 result: ninety-five US Dollar and seventeen Cents
Input: 999999999999999999.99 result: nine hundred ninety-nine quadrillion nine hundred ninety-nine trillion nine hundred ninety-nine billion nine hundred ninety-nine million nine hundred ninety-nine thousand nine hundred ninety-nine US Dollar and ninety-nine Cents
"I mean the number of digits in an integer, i.e. "123" has a length of 3"
int i = 123;
// the "length" of 0 is 1:
int len = 1;
// and for numbers greater than 0:
if (i > 0) {
// we count how many times it can be divided by 10:
// (how many times we can cut off the last digit until we end up with 0)
for (len = 0; i > 0; len++) {
i = i / 10;
}
}
// and that's our "length":
std::cout << len;
outputs 3
Simply, you could use or refer to guava lib provided by google, which offers utiliy methods for conversion between long and byte array. My client code:
long content = 212000607777l;
byte[] numberByte = Longs.toByteArray(content);
logger.info(Longs.fromByteArray(numberByte));
echo str_pad("1234567", 8, '0', STR_PAD_LEFT);
Besides calling omp_get_num_threads()
outside of the parallel region in your case, calling omp_set_num_threads()
still doesn't guarantee that the OpenMP runtime will use exactly the specified number of threads. omp_set_num_threads()
is used to override the value of the environment variable OMP_NUM_THREADS
and they both control the upper limit of the size of the thread team that OpenMP would spawn for all parallel regions (in the case of OMP_NUM_THREADS
) or for any consequent parallel region (after a call to omp_set_num_threads()
). There is something called dynamic teams that could still pick smaller number of threads if the run-time system deems it more appropriate. You can disable dynamic teams by calling omp_set_dynamic(0)
or by setting the environment variable OMP_DYNAMIC
to false
.
To enforce a given number of threads you should disable dynamic teams and specify the desired number of threads with either omp_set_num_threads()
:
omp_set_dynamic(0); // Explicitly disable dynamic teams
omp_set_num_threads(4); // Use 4 threads for all consecutive parallel regions
#pragma omp parallel ...
{
... 4 threads used here ...
}
or with the num_threads
OpenMP clause:
omp_set_dynamic(0); // Explicitly disable dynamic teams
// Spawn 4 threads for this parallel region only
#pragma omp parallel ... num_threads(4)
{
... 4 threads used here ...
}
It's not bulletproof by any means, but it worked for my purposes and maybe it will help someone.
var value = $('input').val();
if(parseInt(value)) {
console.log(value+" is a number.");
}
else {
console.log(value+" is NaN.");
}
The easiest way is to turn the int into a string and take each character of the string as an element of your list:
>>> n = 43365644
>>> digits = [int(x) for x in str(n)]
>>> digits
[4, 3, 3, 6, 5, 6, 4, 4]
>>> lst.extend(digits) # use the extends method if you want to add the list to another
It involves a casting operation, but it's readable and acceptable if you don't need extreme performance.
1.) Create a sequence of numbers 'seq' from 1 to 1000, and fix the width '-w' (width is determined by length of ending number, in this case 4 digits for 1000).
2.) Also, select which numbers you want using 'sed -n' (in this case, we select numbers 1-100).
3.) 'echo' out each number. Numbers are stored in the variable 'i', accessed using the '$'.
Pros: This code is pretty clean.
Cons: 'seq' isn't native to all Linux systems (as I understand)
for i in `seq -w 1 1000 | sed -n '1,100p'`;
do
echo $i;
done
(Math.floor((Math.random() * 2)) > 0 ? 1 : -1) * Math.floor((Math.random() * 32767))
I don't believe there is anything builtin to do it. For more than you ever wanted to see on the subject, see Perlmonks on Detecting Numeric
import java.util.Scanner;
public class v{
public static void main(String args[]){
Scanner in=new Scanner(System.in);
String str;
int l;
int flag=0;
System.out.println("Enter the String:");
str=in.nextLine();
str=str.toLowerCase();
str=str.replaceAll("\\s","");
char[] ch=str.toCharArray();
l=str.length();
for(int i=0;i<l;i++){
if ((ch[i] >= 'a' && ch[i]<= 'z') || (ch[i] >= 'A' && ch[i] <= 'Z')){
flag=0;
}
else
flag++;
break;
}
if(flag==0)
System.out.println("Onlt char");
}
}
If your numbers are a, b and c then:
int a = 1;
int b = 2;
int c = 3;
int d = a > b ? a : b;
return c > d ? c : d;
This could turn into one of those "how many different ways can we do this" type questions!
I can't believe I haven't found this simple solution anywhere on stack overflow yet, it is by far the most useful. Changing the Document or DocumentFilter does not work for JFormattedTextField. Peter Tseng's answer comes very close.
NumberFormat longFormat = NumberFormat.getIntegerInstance();
NumberFormatter numberFormatter = new NumberFormatter(longFormat);
numberFormatter.setValueClass(Long.class); //optional, ensures you will always get a long value
numberFormatter.setAllowsInvalid(false); //this is the key!!
numberFormatter.setMinimum(0l); //Optional
JFormattedTextField field = new JFormattedTextField(numberFormatter);
Language independent way:
var a = 3.2;
var fract = a * 10 % 10 /10; //0.2
var integr = a - fract; //3
note that it correct only for numbers with one fractioanal lenght )
You can use Django's built-in validators—
from django.db.models import IntegerField, Model
from django.core.validators import MaxValueValidator, MinValueValidator
class CoolModelBro(Model):
limited_integer_field = IntegerField(
default=1,
validators=[
MaxValueValidator(100),
MinValueValidator(1)
]
)
Edit: When working directly with the model, make sure to call the model full_clean method before saving the model in order to trigger the validators. This is not required when using ModelForm
since the forms will do that automatically.
Pure regex answer
n.replace(/(\.[0-9]*[1-9])0+$|\.0*$/,'$1');
I wonder why no one gave one!
#Ask for number input
first = int(raw_input('Please type a number: '))
second = int(raw_input('Please type a number: '))
third = int(raw_input('Please type a number: '))
fourth = int(raw_input('Please type a number: '))
fifth = int(raw_input('Please type a number: '))
sixth = int(raw_input('Please type a number: '))
seventh = int(raw_input('Please type a number: '))
eighth = int(raw_input('Please type a number: '))
ninth = int(raw_input('Please type a number: '))
tenth = int(raw_input('Please type a number: '))
#create a list for variables
sorted_list = [first, second, third, fourth, fifth, sixth, seventh,
eighth, ninth, tenth]
odd_numbers = []
#filter list and add odd numbers to new list
for value in sorted_list:
if value%2 != 0:
odd_numbers.append(value)
print 'The greatest odd number you typed was:', max(odd_numbers)
You can also add 0, use shift operators or xor:
val + 0;
val ^ 0;
val >> 0;
val >>> 0;
val << 0;
These have similar speeds as those from the others answers.
For everyone coming to this site having the same problem with commata instead, change:
$num = number_format($value, 1, ',', '');
to:
$num = str_replace(',0', '', number_format($value, 1, ',', '')); // e.g. 100,0 becomes 100
If there are two zeros to be removed, then change to:
$num = str_replace(',00', '', number_format($value, 2, ',', '')); // e.g. 100,00 becomes 100
Just to add another option to the mix, there are several useful constants within the string
module. While more useful in other cases, they can be used here.
>>> from string import digits
>>> ''.join(c for c in "abc123def456" if c in digits)
'123456'
There are several constants in the module, including:
ascii_letters
(abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ)hexdigits
(0123456789abcdefABCDEF)If you are using these constants heavily, it can be worthwhile to covert them to a frozenset
. That enables O(1) lookups, rather than O(n), where n is the length of the constant for the original strings.
>>> digits = frozenset(digits)
>>> ''.join(c for c in "abc123def456" if c in digits)
'123456'
The best earlier answer is the answer by sje397
. You will get as good random numbers as you can get, as quick as possible.
My solution is very similar to his solution. However, sometimes you want the random numbers in random order, and that is why I decided to post an answer. In addition, I provide a general function.
function selectKOutOfN(k, n) {
if (k>n) throw "k>n";
var selection = [];
var sorted = [];
for (var i = 0; i < k; i++) {
var rand = Math.floor(Math.random()*(n - i));
for (var j = 0; j < i; j++) {
if (sorted[j]<=rand)
rand++;
else
break;
}
selection.push(rand);
sorted.splice(j, 0, rand);
}
return selection;
}
alert(selectKOutOfN(8, 100));
Chrome now supports loading HAR files. Open Chrome, Press F12, Click on the Network Tab. Drag and drop the .har file DONE !
a = np.empty(0)
for x in y:
a = np.append(a, x)
check the context.xml
file in Web Pages -> META-INF, the username="user"
must be the same as the database user, in my case was root, that solved the connection error
Hope helps
Try yum install php-bcmath
.
If you still can't find anything, try yum search bcmath
to find the package name
Direct use of .reduce
can be hard to read, so I'd recommend creating a function that generates the reducer for you:
function mapfilter(mapper) {
return (acc, val) => {
const mapped = mapper(val);
if (mapped !== false)
acc.push(mapped);
return acc;
};
}
Use it like so:
const words = "Map and filter an array #javascript #arrays";
const tags = words.split(' ')
.reduce(mapfilter(word => word.startsWith('#') && word.slice(1)), []);
console.log(tags); // ['javascript', 'arrays'];
In this case a relatively simple GROUP BY
can work, but in general, when there are additional columns where you can't order by but you want them from the particular row which they are associated with, you can either join back to the detail using all the parts of the key or use OVER()
:
Runnable example (Wofkflow20 error in original data corrected)
;WITH partitioned AS (
SELECT company
,workflow
,date
,other_columns
,ROW_NUMBER() OVER(PARTITION BY company, workflow
ORDER BY date) AS seq
FROM workflowTable
)
SELECT *
FROM partitioned WHERE seq = 1
There are multiple solutions for this:
Solution 1: Patiently wait for 10 to 15 minutes. Have a tea or roam around ;-)
Solution 2: Disconnect device from the system. Restart both iPhone and Xcode and then rebuild again.
Solution 3:
Go to Windows ? Devices and Simulators (Shortcut key: cmd+shift+2)
You’ll see iPhone device connected to system with message
iPhone is busy: Preparing debugger support for iPhone
Click on plus button (+) present in bottom-left corner.
This will show the device connected to system. Click on Next button.
Thereafter you’ll see ‘device setup was successful’. Click on Done button.
Solution 3 worked for me!
Solution 4:
Unpair your device and then pair it again. Thereafter follow Step 3.
the wmic bios get serialnumber
command call the Win32_BIOS
wmi class and get the value of the SerialNumber
property, which retrieves the serial number of the BIOS Chip of your system.
Add following line in you .bashrc file
############################
# Environment path setting #
############################
export PATH=/c/Python27:/c/Python27/Scripts:$PATH
Put a single listener on the table. When it gets a click from an input with a button that has a name of "edit" and value "edit", change its value to "modify". Get rid of the input's id (they aren't used for anything here), or make them all unique.
<script type="text/javascript">
function handleClick(evt) {
var node = evt.target || evt.srcElement;
if (node.name == 'edit') {
node.value = "Modify";
}
}
</script>
<table id="table1" border="1" onclick="handleClick(event);">
<thead>
<tr>
<th>Select
</thead>
<tbody>
<tr>
<td>
<form name="f1" action="#" >
<input id="edit1" type="submit" name="edit" value="Edit">
</form>
<tr>
<td>
<form name="f2" action="#" >
<input id="edit2" type="submit" name="edit" value="Edit">
</form>
<tr>
<td>
<form name="f3" action="#" >
<input id="edit3" type="submit" name="edit" value="Edit">
</form>
</tbody>
</table>
For a Windows Store App, you won't have HttpUtility. Instead, you have:
For an URI, before the '?':
For an URI query name or value, after the '?':
For a x-www-form-urlencoded query name or value, in a POST content:
To round to the nearest X (without being VBA specific)
N = X * int(N / X + 0.5)
Where int(...) returns the next lowest whole number.
If your available rounding function already rounds to the nearest whole number then omit the addition of 0.5
The best explanation of how core.autocrlf
works is found on the gitattributes man page, in the text
attribute section.
This is how core.autocrlf
appears to work currently (or at least since v1.7.2 from what I am aware):
core.autocrlf = true
LF
characters are normalized to CRLF
in your working tree; files that contain CRLF
in the repository will not be touchedLF
characters in the repository, are normalized from CRLF
to LF
when committed back to the repository. Files that contain CRLF
in the repository will be committed untouched.core.autocrlf = input
CRLF
characters are normalized to LF
when committed back to the repository.core.autocrlf = false
core.eol
dictates EOL characters in the text files of your working tree.core.eol = native
by default, which means Windows EOLs are CRLF
and *nix EOLs are LF
in working trees.gitattributes
settings determines EOL character normalization for commits to the repository (default is normalization to LF
characters).I've only just recently researched this issue and I also find the situation to be very convoluted. The core.eol
setting definitely helped clarify how EOL characters are handled by git.
This is stupid but for future reference. I did put all my code in:
$(document).ready(function () {
//your jQuery function
});
But still it wasn't working and it was returning undefined
value.
I check my HTML DOM
<input id="username" placeholder="Username"></input>
and I realised that I was referencing it wrong in jQuery:
var user_name = $('#user_name').val();
Making it:
var user_name = $('#username').val();
solved my problem.
So it's always better to check your previous code.
I'm using Mac OS X Yosemite and Netbeans 8.02, I got the same error and the simple solution I have found is like above, this is useful when you need to include native library in the project. So do the next for Netbeans:
1.- Right click on the Project
2.- Properties
3.- Click on RUN
4.- VM Options: java -Djava.library.path="your_path"
5.- for example in my case: java -Djava.library.path=</Users/Lexynux/NetBeansProjects/NAO/libs>
6.- Ok
I hope it could be useful for someone. The link where I found the solution is here: java.library.path – What is it and how to use
The problem is that POST method is forbidden for Nginx server's static files requests. Here is the workaround:
# Pass 405 as 200 for requested address:
server {
listen 80;
server_name localhost;
location / {
root html;
index index.html index.htm;
}
error_page 404 /404.html;
error_page 403 /403.html;
error_page 405 =200 $uri;
}
If using proxy:
# If Nginx is like proxy for Apache:
error_page 405 =200 @405;
location @405 {
root /htdocs;
proxy_pass http://localhost:8080;
}
If using FastCGI:
location ~\.php(.*) {
fastcgi_pass 127.0.0.1:9000;
fastcgi_split_path_info ^(.+\.php)(.*)$;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_param PATH_INFO $fastcgi_path_info;
fastcgi_param PATH_TRANSLATED $document_root$fastcgi_path_info;
include /etc/nginx/fastcgi_params;
}
Browsers usually use GET, so you can use online tools like ApiTester to test your requests.
export a=$(script.sh)
Hope this helps. Note there are no spaces between variable and =. To echo the output
echo $a
This works with all DBRM/SQL, it is standard ANSI:
SELECT *
FROM owner.tablename A
WHERE condition
AND n+1 <= (
SELECT COUNT(DISTINCT b.column_order)
FROM owner.tablename B
WHERE condition
AND b.column_order>a.column_order
)
ORDER BY a.column_order DESC
Try:
if not "asdf" == "fdas" echo asdf
That works for me on Windows XP (I get the same error as you for the code you posted).
Technically, putting null or 0, or just some random value there works (since you are not using the return value). However, why are you using this construct instead of the if
construct? It is less obvious what you are trying to do when you write code this way, as you may confuse people with the no-op (null in your case).
PHP single command:
php -r '$d="PUT_YOUR_DB_NAME_HERE"; $q="show tables"; $dt="drop table"; exec("mysql -Nse \"$q\" $d", $o); foreach($o as $e) `mysql -e "$dt $e" $d`;'
Executed PHP script:
$d="PUT_YOUR_DB_NAME_HERE";
$q="show tables";
$dt="drop table";
exec("mysql -Nse \"$q\" $d", $o);
foreach($o as $e)
`mysql -e "$dt $e" $d`;
This answer is a little long-winded, and the documentation will not tell you this (because they assume you are storing your dates as UTC dates in the database), but the answer to this question depends largely on the timezone that your dates are stored in. You also don't use Date('now')
, but use the julianday()
function, to calculate both dates back against a common date, then subtract the difference of those results from each other.
If your dates are stored in UTC:
SELECT julianday('now') - julianday(DateCreated) FROM Payment;
This is what the top-ranked answer has, and is also in the documentation. It is only part of the picture, and a very simplistic answer, if you ask me.
If your dates are stored in local time, using the above code will make your answer WRONG by the number of hours your GMT offset is. If you are in the Eastern U.S. like me, which is GMT -5, your result will have 5 hours added onto it. And if you try making DateCreated
conform to UTC because julianday('now')
goes against a GMT date:
SELECT julianday('now') - julianday(DateCreated, 'utc') FROM Payment;
This has a bug where it will add an hour for a DateCreated
that is during Daylight Savings Time (March-November). Say that "now" is at noon on a non-DST day, and you created something back in June (during DST) at noon, your result will give 1 hour apart, instead of 0 hours, for the hours portion. You'd have to write a function in your application's code that is displaying the result to modify the result and subtract an hour from DST dates. I did that, until I realized there's a better solution to that problem that I was having: SQLite vs. Oracle - Calculating date differences - hours
Instead, as was pointed out to me, for dates stored in local time, make both match to local time:
SELECT julianday('now', 'localtime') - julianday(DateCreated) FROM Payment;
Or append 'Z'
to local time:
julianday(datetime('now', 'localtime')||'Z') - julianday(CREATED_DATE||'Z')
Both of these seem to compensate and do not add the extra hour for DST dates and do straight subtraction - so that item created at noon on a DST day, when checking at noon on a non-DST day, will not get an extra hour when performing the calculation.
And while I recognize most will say don't store dates in local time in your database, and to store them in UTC so you don't run into this, well not every application has a world-wide audience, and not every programmer wants to go through the conversion of EVERY date in their system to UTC and back again every time they do a GET or SET in the database and deal with figuring out if something is local or in UTC.
If you use eslint and want to avoid tripping the the no-param-reassign rule, you can use Object.assign in conjunction with .reduce and a computed property name for a fairly elegant ES6 solution:
const queryParams = { a: 'a', b: 'b', c: 'c', d: undefined, e: null, f: '', g: 0 };
const cleanParams = Object.keys(queryParams)
.filter(key => queryParams[key] != null)
.reduce((acc, key) => Object.assign(acc, { [key]: queryParams[key] }), {});
// { a: 'a', b: 'b', c: 'c', f: '', g: 0 }
I am currently responsible for an Excel application with a lot of legacy code. One of the slowest pieces of this code was looping through 500 Rows in 6 Columns, setting conditional formatting formulae for each. The formulae are to identify where the cell contents are non-blank but do not form part of a Named Range, therefore referring twice to the cell itself, originally written as:
=AND(COUNTIF(<rangename>,<cellref>)=0,<cellref><>"")
Obviously the overheads would be much reduced by updating all Cells in each Column (Range) at once. However, as noted above, using ADDRESS(ROW(),COLUMN(),n) does not work in this circumstance, i.e. this does not work:
=AND(COUNTIF(<rangename>,ADDRESS(ROW(),COLUMN(),1))=0,ADDRESS(ROW(),COLUMN(),1)<>"")
I experimented extensively with a blank workbook and could find no way around this, using various alternatives such as ISBLANK. In the end, to get around this, I created two User-Defined Functions (using a tip I found elsewhere on this site):
Public Function returnCellContent() As Variant
returnCellContent = Application.Caller.Value
End Function
Public Function Cell_HasContent() As Boolean
If Application.Caller.Value = "" Then
Cell_HasContent = False
Else
Cell_HasContent = True
End If
End Function
The conditional formula is now:
=AND(COUNTIF(<rangename>,returnCellContent()=0,Cell_HasContent())
which works fine.
This has sped the code up, in Excel 2010, from 5s to 1s. Because this code is run whenever data is loaded into the application, this saving is significant and noticeable to the user. It's also a lot cleaner and reusable.
I've taken the time to post this because I could not find any answers on this site or elsewhere that cover all of the circumstances, whilst I'm sure that there are others who could benefit from the above approach, potentially with much larger numbers of cells to update.
If you look at the methods AtomicInteger has, you'll notice that they tend to correspond to common operations on ints. For instance:
static AtomicInteger i;
// Later, in a thread
int current = i.incrementAndGet();
is the thread-safe version of this:
static int i;
// Later, in a thread
int current = ++i;
The methods map like this:
++i
is i.incrementAndGet()
i++
is i.getAndIncrement()
--i
is i.decrementAndGet()
i--
is i.getAndDecrement()
i = x
is i.set(x)
x = i
is x = i.get()
There are other convenience methods as well, like compareAndSet
or addAndGet
When setting your display to flex, you could simply use the flex
property to mark which content can grow and which content cannot.
div.content {_x000D_
height: 300px;_x000D_
display: flex;_x000D_
flex-direction: column;_x000D_
}_x000D_
_x000D_
div.up {_x000D_
flex: 1;_x000D_
}_x000D_
_x000D_
div.down {_x000D_
flex: none;_x000D_
}
_x000D_
<div class="content">_x000D_
<div class="up">_x000D_
<h1>heading 1</h1>_x000D_
<h2>heading 2</h2>_x000D_
<p>Some more or less text</p>_x000D_
</div>_x000D_
_x000D_
<div class="down">_x000D_
<a href="/" class="button">Click me</a>_x000D_
</div>_x000D_
</div>
_x000D_
I just changed the .htaccess file contents and as shown in the following links answer. And tried refreshing the page (which didn't work, and couldn't find the request to my controller) it worked.
Then just because of my doubt I undone the changes I did to my .htaccess inside my public_html folder back to original .htaccess content. So it's now as follows (which is originally it was):
DirectoryIndex index.php
RewriteEngine on
RewriteCond $1 !^(index\.php|images|css|js|robots\.txt|favicon\.ico)
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ ./index.php?/$1 [L,QSA]
And now also it works.
Hint: Seems like before the Rewrite Rules haven't been clearly setup within the Server context.
My file structure is as follows:
/
|- gheapp
| |- application
| L- system
|
|- public_html
| |- .htaccess
| L- index.php
And in the index.php
I have set up the following paths to the system and the application:
$system_path = '../gheapp/system';
$application_folder = '../gheapp/application';
Note: by doing so, our application source code becomes hidden to the public at first.
Please, if you guys find anything wrong with my answer, comment and re-correct me!
Hope beginners would find this answer helpful.
Thanks!
Update: Starting with Android SDK Manager version 21, the solution is to edit C:\Users\<user>\.android\avd\<avd-profile-name>.avd\config.ini
and change the value
hw.ramSize=1024
to
hw.ramSize=1024MB
The emulator is really slow, hope they will release the intel images soon use the new API17 Intel x86 images if you want to change it .. (HAXM, Configuration)
Earlier Android SDK Manager releases:
Had the same problem with the built-in WXGA800 skin. I got it working by editing the virtual device setup to:
Here my tablet config for 4.1.0 API 16
C:\Users\<user>\.android\avd\<avd-profile-name>.avd\config.ini
hw.lcd.density=160
sdcard.size=300M
skin.path=1280x800
skin.name=1280x800
hw.cpu.arch=arm
abi.type=armeabi-v7a
hw.cpu.model=cortex-a8
vm.heapSize=48
hw.ramSize=1024MB
image.sysdir.1=system-images\android-16\armeabi-v7a\
This config shows the software keys too
var table=document.getElementById("mytab1");_x000D_
var r=0; //start counting rows in table_x000D_
while(row=table.rows[r++])_x000D_
{_x000D_
var c=0; //start counting columns in row_x000D_
while(cell=row.cells[c++])_x000D_
{_x000D_
cell.innerHTML='[R'+r+'C'+c+']'; // do sth with cell_x000D_
}_x000D_
}
_x000D_
<table id="mytab1">_x000D_
<tr>_x000D_
<td>A1</td><td>A2</td><td>A3</td>_x000D_
</tr>_x000D_
<tr>_x000D_
<td>B1</td><td>B2</td><td>B3</td>_x000D_
</tr>_x000D_
<tr>_x000D_
<td>C1</td><td>C2</td><td>C3</td>_x000D_
</tr>_x000D_
</table>
_x000D_
In each pass through while loop r/c iterator increases and new row/cell object from collection is assigned to row/cell variables. When there's no more rows/cells in collection, false is assigned to row/cell variable and iteration through while loop stops (exits).
If you want to redo the last operation, do the following.
ESC
C + /
)We can easily do that in css3. We have to simply use @import statement. The following video easily describes the way how to do that. so go ahead and watch it out.
This regex validates dates between 01-01-2000 and 12-31-2099 with matching separators.
^(0[1-9]|1[012])([- /.])(0[1-9]|[12][0-9]|3[01])\2(19|20)\d\d$
If anyone is running into this in 2018, the thing that finally worked for me was to go into the my-app I created with ng new my-app
, and THEN run ng serve
This has to do with it needing the dependencies and devDependencies located in my-app/package.json
instead of root/package.json
. They are two separate files.
Even if I copied the all the dependencies to my root folder's package.json
, I would also have to go in and manually change the path locations for the config files and such to go into my-app/*
. It is much easier to just go into my-app/
and run ng serve
there to let it all work like it is supposed to.
So these steps should work for anyone:
rm -rf <previous-app>
// Whatever your previous app was called, if you had one.
sudo rm -rf node_modules
rm -f package-lock.json
npm install
ng new my-app
cd my-app
ng serve
The above answers are correct if you really don't have a PK.
But if there is one but it is just not specified with an index in the DB, and you can't change the DB (yes, i work in Dilbert's world) you can manually map the field(s) to be the key.
More one tip very simple. You also could use to_char function, look:
For Month:
to_char(happened_at , 'MM') = 01
to_char(happened_at , 'YYYY') = 2009
to_char(happened_at , 'DD') = 01
to_char funcion is suported by sql language and not by one specific database.
I hope help anybody more...
Abs!
For one thing, it says you already have that module installed. If you need to upgrade it, you should do something like this:
easy_install -U packageName
Of course, easy_install doesn't work very well if the package has some C headers that need to be compiled and you don't have the right version of Visual Studio installed. You might try using pip or distribute instead of easy_install and see if they work better.
I had same problem, I installed all dependencies with root access :
In your case:
sudo pip install django
In my case, I had all dependencies in requirements.txt
, So:
sudo pip3 install -r requirements.txt
Building on @rprog's answer, you can combine the various pieces of the suffix & filter step into one line using a negative regex:
dfNew = df.merge(df2, left_index=True, right_index=True,
how='outer', suffixes=('', '_DROP')).filter(regex='^(?!.*_DROP)')
Or using df.join
:
dfNew = df.join(df2, lsuffix="DROP").filter(regex="^(?!.*DROP)")
The regex here is keeping anything that does not end with the word "DROP", so just make sure to use a suffix that doesn't appear among the columns already.
Working demo : http://jsfiddle.net/YbLnj/
Documentation: http://jqueryui.com/demos/datepicker/
code
$("#dt").datepicker({
onSelect: function(dateText, inst) {
var date = $(this).val();
var time = $('#time').val();
alert('on select triggered');
$("#start").val(date + time.toString(' HH:mm').toString());
}
});
I found that the cleanest way to do this is to create a custom TwigExtension and override its getGlobals()
method. Rather than using $_SESSION
, it's also better to use Symfony's Session
class since it handles automatically starting/stopping the session.
I've got the following extension in /src/AppBundle/Twig/AppExtension.php:
<?php
namespace AppBundle\Twig;
use Symfony\Component\HttpFoundation\Session\Session;
class AppExtension extends \Twig_Extension {
public function getGlobals() {
$session = new Session();
return array(
'session' => $session->all(),
);
}
public function getName() {
return 'app_extension';
}
}
Then add this in /app/config/services.yml:
services:
app.twig_extension:
class: AppBundle\Twig\AppExtension
public: false
tags:
- { name: twig.extension }
Then the session can be accessed from any view using:
{{ session.my_variable }}
if you are trying to access the rootViewController
you set in your appDelegate. try this:
Objective-C
YourViewController *rootController = (YourViewController*)[[(YourAppDelegate*)
[[UIApplication sharedApplication]delegate] window] rootViewController];
Swift
let appDelegate = UIApplication.sharedApplication().delegate as AppDelegate
let viewController = appDelegate.window!.rootViewController as YourViewController
Swift 3
let appDelegate = UIApplication.shared.delegate as! AppDelegate
let viewController = appDelegate.window!.rootViewController as! YourViewController
Swift 4 & 4.2
let viewController = UIApplication.shared.keyWindow!.rootViewController as! YourViewController
Swift 5 & 5.1 & 5.2
let viewController = UIApplication.shared.windows.first!.rootViewController as! YourViewController
This is a quick example
plot(rnorm(30), xlab = expression(paste("4"^"th")))
The pure javascript solution is better, but a jQuery way would be to use the jQuery grep and/or map methods. Probably not much better than using $.each
jQuery.grep(TestObj, function(obj) {
return obj.id === "A";
});
or
jQuery.map(TestObj, function(obj) {
if(obj.id === "A")
return obj; // or return obj.name, whatever.
});
Returns an array of the matching objects, or of the looked-up values in the case of map. Might be able to do what you want simply using those.
But in this example you'd have to do some recursion, because the data isn't a flat array, and we're accepting arbitrary structures, keys, and values, just like the pure javascript solutions do.
function getObjects(obj, key, val) {
var retv = [];
if(jQuery.isPlainObject(obj))
{
if(obj[key] === val) // may want to add obj.hasOwnProperty(key) here.
retv.push(obj);
var objects = jQuery.grep(obj, function(elem) {
return (jQuery.isArray(elem) || jQuery.isPlainObject(elem));
});
retv.concat(jQuery.map(objects, function(elem){
return getObjects(elem, key, val);
}));
}
return retv;
}
Essentially the same as Box9's answer, but using the jQuery utility functions where useful.
········
from manual:
: [arguments] No effect; the command does nothing beyond expanding arguments and performing any specified redirections. A zero exit code is returned.
As this returns always zero therefore is is similar to be used as true
Check out this answer: What Is the Purpose of the `:' (colon) GNU Bash Builtin?
Two issues with answers given so far, if , for instance, one streams such non-standard JSON. Because then one might have to interpret an incoming string (not a python dictionary).
Issue 1 - demjson
:
With Python 3.7.+ and using conda I wasn't able to install demjson since obviosly it does not support Python >3.5 currently. So I need a solution with simpler means, for instance ast
and/or json.dumps
.
Issue 2 - ast
& json.dumps
:
If a JSON is both single quoted and contains a string in at least one value, which in turn contains single quotes, the only simple yet practical solution I have found is applying both:
In the following example we assume line
is the incoming JSON string object :
>>> line = str({'abc':'008565','name':'xyz','description':'can control TV\'s and more'})
Step 1: convert the incoming string into a dictionary using ast.literal_eval()
Step 2: apply json.dumps
to it for the reliable conversion of keys and values, but without touching the contents of values:
>>> import ast
>>> import json
>>> print(json.dumps(ast.literal_eval(line)))
{"abc": "008565", "name": "xyz", "description": "can control TV's and more"}
json.dumps
alone would not do the job because it does not interpret the JSON, but only see the string. Similar for ast.literal_eval()
: although it interprets correctly the JSON (dictionary), it does not convert what we need.
If all your inputs / textarea have a name, then you can filter all from event.target:
onSubmit(event){
const fields = Array.prototype.slice.call(event.target)
.filter(el => el.name)
.reduce((form, el) => ({
...form,
[el.name]: el.value,
}), {})
}
Totally uncontrolled form without onChange methods, value, defaultValue...
The code for the confirmation dialogue can be written shorter this way:
$scope.$on('$locationChangeStart', function( event ) {
var answer = confirm("Are you sure you want to leave this page?")
if (!answer) {
event.preventDefault();
}
});
you can wrap -Andrie answer into a generic function
mbind<-function(...){
Reduce( function(x,y){cbind(x,y[match(row.names(x),row.names(y)),])}, list(...) )
}
Here, you can bind multiple frames with rownames as key
Just use the entity code 
for a linebreak in a title attribute.
check with one query if email or phoneNumber already exists in DB
let userDB = await UserS.findOne({ $or: [
{ email: payload.email },
{ phoneNumber: payload.phoneNumber }
] })
if (userDB) {
if (payload.email == userDB.email) {
throw new BadRequest({ message: 'E-mail already exists' })
} else if (payload.phoneNumber == userDB.phoneNumber) {
throw new BadRequest({ message: 'phoneNumber already exists' })
}
}
I am using Python 3.6 and I had the same original error in this post. After I ran the command:
python3 -m pip install lxml
it resolved my problem
replace {userid} and {password} with your id and password in your organization or login to your machine.
npm config set proxy http://{userid}:{password}@proxyip:8080/
npm config set https-proxy http://{userid}:{password}@proxyip:8080/
npm config set http-proxy http://{userid}:{password}@proxyip:8080/
strict-ssl=false
Assuming you're using a std::ofstream
to write to file, the following snippet will write a std::string
to file in human readable form:
std::ofstream file("filename");
std::string my_string = "Hello text in file\n";
file << my_string;
Jquery later allowed you to to find the parents with the .parents()
method.
Hence I recommend using:
var $div = $('#divid').parents('div[class^="div-a"]');
This gives all parent nodes matching the selector. To get the first parent matching the selector use:
var $div = $('#divid').parents('div[class^="div-a"]').eq(0);
For other such DOM traversal queries, check out the documentation on traversing the DOM.
This is not an answer to the original question, but an alternative solution for a need to have a different configuration in a test...
Instead of @PropertySource
you can use -Dspring.config.additional-location=classpath:application-tests.yml
.
Be aware, that suffix tests
does not mean profile...
In that one YAML file one can specify multiple profiles, that can kind of inherit from each other, read more here - Property resolving for multiple Spring profiles (yaml configuration)
Then, you can specify in your test, that active profiles (using @ActiveProfiles("profile1,profile2")
) are profile1,profile2
where profile2
will simply override (some, one does not need to override all) properties from profile1
.
Just to provide some variation here: You could check for
if ($_SERVER["QUERY_STRING"] == null)
it is completely identical to testing $_GET
.
You can also cast an array to a string like...
newStr = String(aa);
I also agree with Tor Valamo's answer, console.log should have no problem with arrays, no need to convert to a string unless you're debugging something or just curious.
Hint: break up the 32-bit integer to 4 8-bit integers, and print them out.
Something along the lines of this (not compiled, YMMV):
int i = 0xDEADBEEF; // some 32-bit integer
printf("%i.%i.%i.%i",
(i >> 24) & 0xFF,
(i >> 16) & 0xFF,
(i >> 8) & 0xFF,
i & 0xFF);
public int MinimumValue { get; private set; }
public int MaxmimumValue { get; private set; }
public void num()
{
int[] array = { 12, 56, 89, 65, 61, 36, 45, 23 };
MaxmimumValue = array[0];
MinimumValue = array[0];
foreach (int num in array)
{
if (num > MaxmimumValue) MaxmimumValue = num;
if (num < MinimumValue) MinimumValue = num;
}
Console.WriteLine(MinimumValue);
Console.WriteLine(MaxmimumValue);
}
Even in base Python you can do the computation in generic form
result = sum(x**2 for x in some_vector) ** 0.5
x ** 2
is surely not an hack and the computation performed is the same (I checked with cpython source code). I actually find it more readable (and readability counts).
Using instead x ** 0.5
to take the square root doesn't do the exact same computations as math.sqrt
as the former (probably) is computed using logarithms and the latter (probably) using the specific numeric instruction of the math processor.
I often use x ** 0.5
simply because I don't want to add math
just for that. I'd expect however a specific instruction for the square root to work better (more accurately) than a multi-step operation with logarithms.
You can refer the below example to understand the working of re.match
and re.search
a = "123abc"
t = re.match("[a-z]+",a)
t = re.search("[a-z]+",a)
re.match
will return none
, but re.search
will return abc
.
words = "apple banana apple strawberry banana lemon"
w=words.split()
e=list(set(w))
word_freqs = {}
for i in e:
word_freqs[i]=w.count(i)
print(word_freqs)
Hope this helps!
//lower for v4 some version
public function videos() {
$instance =$this->hasMany('Video');
$instance->getQuery()->where('available','=', 1);
return $instance
}
//v5
public function videos() {
return $this->hasMany('Video')->where('available','=', 1);
}
This isolation level allows dirty reads. One transaction may see uncommitted changes made by some other transaction.
To maintain the highest level of isolation, a DBMS usually acquires locks on data, which may result in a loss of concurrency and a high locking overhead. This isolation level relaxes this property.
You may want to check out the Wikipedia article on READ UNCOMMITTED
for a few examples and further reading.
You may also be interested in checking out Jeff Atwood's blog article on how he and his team tackled a deadlock issue in the early days of Stack Overflow. According to Jeff:
But is
nolock
dangerous? Could you end up reading invalid data withread uncommitted
on? Yes, in theory. You'll find no shortage of database architecture astronauts who start dropping ACID science on you and all but pull the building fire alarm when you tell them you want to trynolock
. It's true: the theory is scary. But here's what I think: "In theory there is no difference between theory and practice. In practice there is."I would never recommend using
nolock
as a general "good for what ails you" snake oil fix for any database deadlocking problems you may have. You should try to diagnose the source of the problem first.But in practice adding
nolock
to queries that you absolutely know are simple, straightforward read-only affairs never seems to lead to problems... As long as you know what you're doing.
One alternative to the READ UNCOMMITTED
level that you may want to consider is the READ COMMITTED SNAPSHOT
. Quoting Jeff again:
Snapshots rely on an entirely new data change tracking method ... more than just a slight logical change, it requires the server to handle the data physically differently. Once this new data change tracking method is enabled, it creates a copy, or snapshot of every data change. By reading these snapshots rather than live data at times of contention, Shared Locks are no longer needed on reads, and overall database performance may increase.
Before Python 2.4, an integer couldn't hold the full range of truncated real numbers.
http://docs.python.org/whatsnew/2.4.html#pep-237-unifying-long-integers-and-integers
SCREEN:
NOTE: screen is actually not able to send hex, as far as I know. To do that, use echo
or printf
I was using the suggestions in this post to write to a serial port, then using the info from another post to read from the port, with mixed results. I found that using screen is an "easier" solution, since it opens a terminal session directly with that port. (I put easier in quotes, because screen has a really weird interface, IMO, and takes some further reading to figure it out.)
You can issue this command to open a screen session, then anything you type will be sent to the port, plus the return values will be printed below it:
screen /dev/ttyS0 19200,cs8
(Change the above to fit your needs for speed, parity, stop bits, etc.) I realize screen isn't the "linux command line" as the post specifically asks for, but I think it's in the same spirit. Plus, you don't have to type echo and quotes every time.
ECHO:
Follow praetorian droid's answer. HOWEVER, this didn't work for me until I also used the cat command (cat < /dev/ttyS0
) while I was sending the echo command.
PRINTF:
I found that one can also use printf's '%x' command:
c="\x"$(printf '%x' 0x12)
printf $c >> $SERIAL_COMM_PORT
Again, for printf, start cat < /dev/ttyS0
before sending the command.
I Found the best way to increase Font Size in Eclipse:
Follow this path : Eclipse-Folder\plugins\org.eclipse.ui.themes_1.2.100.v20180514-1547\css
--There are a bunch of Files here and it depends on user system which file to change.
* {
font-size:13;
font-family: Helvetica, Arial, sans-serif;
font-weight: normal;
}
you can even change Font Family if you like.
For Windows Users add the following piece of css at BOTTOM of these files: File Names: e4_default_gtk.css & e4_default_win.css
For Mac Users: e4_default_mac.css
This problem may also happen if you have a unit test project that has a different C++ version than the project you want to test.
Example:
Solution: change the Unit Test to C++17 as well.
Yes, you missed the form encapsulation:
<form>
<input id="tbQuestion" type="text" placeholder="Post a question?" required/>
<input id="btnSubmit" type="submit" />
</form>
I'm not entirely sure I know what you're asking about, but you can use string functions to create the actual ID that you're looking for.
var base = "common";
var num = 3;
var o = document.getElementById(base + num); // will find id="common3"
If you don't know the actual ID, then you can't look up the object with getElementById, you'd have to find it some other way (by class name, by tag type, by attribute, by parent, by child, etc...).
Now that you've finally given us some of the HTML, you could use this plain JS to find all form elements that have an ID that starts with "poll-":
// get a list of all form objects that have the right type of ID
function findPollForms() {
var list = getElementsByTagName("form");
var results = [];
for (var i = 0; i < list.length; i++) {
var id = list[i].id;
if (id && id.search(/^poll-/) != -1) {
results.push(list[i]);
}
}
return(results);
}
// return the ID of the first form object that has the right type of ID
function findFirstPollFormID() {
var list = getElementsByTagName("form");
var results = [];
for (var i = 0; i < list.length; i++) {
var id = list[i].id;
if (id && id.search(/^poll-/) != -1) {
return(id);
}
}
return(null);
}
Maybe it's too late to post a reply, but as this page is the first Google's result, it may still be helpful.
If you want to free some space in your git repo, but do not want to rebuild all your commits (rebase or graft), and still be able to push/pull/merge from people who has the full repo, you may use the git clone shallow clone (--depth parameter).
; Clone the original repo into limitedRepo
git clone file:///path_to/originalRepo limitedRepo --depth=10
; Remove the original repo, to free up some space
rm -rf originalRepo
cd limitedRepo
git remote rm origin
You may be able to shallow your existing repo, by following these steps:
; Shallow to last 5 commits
git rev-parse HEAD~5 > .git/shallow
; Manually remove all other branches, tags and remotes that refers to old commits
; Prune unreachable objects
git fsck --unreachable ; Will show you the list of what will be deleted
git gc --prune=now ; Will actually delete your data
How to remove all git local tags?
Ps: Older versions of git didn't support clone/push/pull from/to shallow repos.
I was also facing the same issue.
Added the same dependency and it worked (like this):
<dependency>
<groupId>javassist</groupId>
<artifactId>javassist</artifactId>
<version>3.12.1.GA</version>
</dependency>
You are correct in that glibc uses symbol versioning. If you are curious, the symbol versioning implementation introduced in glibc 2.1 is described here and is an extension of Sun's symbol versioning scheme described here.
One option is to statically link your binary. This is probably the easiest option.
You could also build your binary in a chroot build environment, or using a glibc-new => glibc-old cross-compiler.
According to the http://www.trevorpounds.com blog post Linking to Older Versioned Symbols (glibc), it is possible to to force any symbol to be linked against an older one so long as it is valid by using the same .symver
pseudo-op that is used for defining versioned symbols in the first place. The following example is excerpted from the blog post.
The following example makes use of glibc’s realpath, but makes sure it is linked against an older 2.2.5 version.
#include <limits.h>
#include <stdlib.h>
#include <stdio.h>
__asm__(".symver realpath,realpath@GLIBC_2.2.5");
int main()
{
const char* unresolved = "/lib64";
char resolved[PATH_MAX+1];
if(!realpath(unresolved, resolved))
{ return 1; }
printf("%s\n", resolved);
return 0;
}
I have faced this situation and in my case, I was using two git id's simultaneously. so what it does it will update the credentials in the credential Manager
Control Panel\User Accounts\Credential Manager
inside Credential Manager, you will find the git hub credentials inside the Generic credentials there you have to update your git credentials.
I consider subclassing UIView
and overriding drawRect
overkill here. Why not add an extension on UIView
and add border subviews?
@discardableResult
func addBorders(edges: UIRectEdge,
color: UIColor,
inset: CGFloat = 0.0,
thickness: CGFloat = 1.0) -> [UIView] {
var borders = [UIView]()
@discardableResult
func addBorder(formats: String...) -> UIView {
let border = UIView(frame: .zero)
border.backgroundColor = color
border.translatesAutoresizingMaskIntoConstraints = false
addSubview(border)
addConstraints(formats.flatMap {
NSLayoutConstraint.constraints(withVisualFormat: $0,
options: [],
metrics: ["inset": inset, "thickness": thickness],
views: ["border": border]) })
borders.append(border)
return border
}
if edges.contains(.top) || edges.contains(.all) {
addBorder(formats: "V:|-0-[border(==thickness)]", "H:|-inset-[border]-inset-|")
}
if edges.contains(.bottom) || edges.contains(.all) {
addBorder(formats: "V:[border(==thickness)]-0-|", "H:|-inset-[border]-inset-|")
}
if edges.contains(.left) || edges.contains(.all) {
addBorder(formats: "V:|-inset-[border]-inset-|", "H:|-0-[border(==thickness)]")
}
if edges.contains(.right) || edges.contains(.all) {
addBorder(formats: "V:|-inset-[border]-inset-|", "H:[border(==thickness)]-0-|")
}
return borders
}
// Usage:
view.addBorder(edges: [.all]) // All with default arguments
view.addBorder(edges: [.top], color: .green) // Just Top, green, default thickness
view.addBorder(edges: [.left, .right, .bottom], color: .red, thickness: 3) // All except Top, red, thickness 3
With this code you're not tied to your subclass too, you can apply it to anything and everything that inherits from UIView
- reusable in your project, and any others. Pass in other arguments to your methods to define other colours and widths. Many options.
Seems you are running a shell script and it can't find your specific file. Look at Target -> Build-Phases -> RunScript
if you are running a script.
You can check if a script is running in your build output (in the navigator panel). If your script does something wrong, the build-phase will stop.
http://www.php.net/manual/en/function.call-user-func-array.php
call_user_func_array('func',$myArgs);
A jQuery solution would be something like:
$(function () {
$('input').blur();
});
From jquery prospective - it's just adding load
/onload
event to window and document.
Check this out:
There is always intval() - Not sure if this is what you were looking for...
example: -
$floatValue = 4.5;
echo intval($floatValue); // Returns 4
It won't round off the value to an integer, but will strip out the decimal and trailing digits, and return the integer before the decimal.
Here is some documentation for this: - http://php.net/manual/en/function.intval.php
I could do this (demo):
<!doctype html>
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.0/jquery.min.js"></script>
</head>
<body>
<form >
<input type="file" id="f" data-max-size="32154" />
<input type="submit" />
</form>
<script>
$(function(){
$('form').submit(function(){
var isOk = true;
$('input[type=file][data-max-size]').each(function(){
if(typeof this.files[0] !== 'undefined'){
var maxSize = parseInt($(this).attr('max-size'),10),
size = this.files[0].size;
isOk = maxSize > size;
return isOk;
}
});
return isOk;
});
});
</script>
</body>
</html>
Escape the apostrophe (i.e. double-up the single quote character) in your SQL:
INSERT INTO Person
(First, Last)
VALUES
('Joe', 'O''Brien')
/\
right here
The same applies to SELECT queries:
SELECT First, Last FROM Person WHERE Last = 'O''Brien'
The apostrophe, or single quote, is a special character in SQL that specifies the beginning and end of string data. This means that to use it as part of your literal string data you need to escape
the special character. With a single quote this is typically accomplished by doubling your quote. (Two single quote characters, not double-quote instead of a single quote.)
Note: You should only ever worry about this issue when you manually edit data via a raw SQL interface since writing queries outside of development and testing should be a rare occurrence. In code there are techniques and frameworks (depending on your stack) that take care of escaping special characters, SQL injection, etc.
In your cases, I would use the following:
select by ID==5: it's OK to use SingleOrDefault here, because you expect one [or none] entity, if you got more than one entity with ID 5, there's something wrong and definitely exception worthy.
when searching for people whose first name equals "Bobby", there can be more than one (quite possibly I would think), so you should neither use Single nor First, just select with the Where-operation (if "Bobby" returns too many entities, the user has to refine his search or pick one of the returned results)
the order by creation date should also be performed with a Where-operation (unlikely to have only one entity, sorting wouldn't be of much use ;) this however implies you want ALL entities sorted - if you want just ONE, use FirstOrDefault, Single would throw every time if you got more than one entity.
//Returns a random number in the range (0.0f, 1.0f).
// 0111 1111 1111 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
// seee eeee eeee vvvv vvvv vvvv vvvv vvvv vvvv vvvv vvvv vvvv vvvv vvvv vvvv vvvv
// sign = 's'
// exponent = 'e'
// value = 'v'
double DoubleRand() {
typedef unsigned long long uint64;
uint64 ret = 0;
for (int i = 0; i < 13; i++) {
ret |= ((uint64) (rand() % 16) << i * 4);
}
if (ret == 0) {
return rand() % 2 ? 1.0f : 0.0f;
}
uint64 retb = ret;
unsigned int exp = 0x3ff;
retb = ret | ((uint64) exp << 52);
double *tmp = (double*) &retb;
double retval = *tmp;
while (retval > 1.0f || retval < 0.0f) {
retval = *(tmp = (double*) &(retb = ret | ((uint64) (exp--) << 52)));
}
if (rand() % 2) {
retval -= 0.5f;
}
return retval;
}
This should do the trick, I used this Wikipedia article to help create this. I believe it to be as good as drand48();
I would try putting a
Log.e("SOMETAG", "dialog button was clicked");
before the dialog.dismiss() line in your code to see if it actually reaches that section.
To anyone come to find timezone of mysql db.
With this query you can get current timezone :
mysql> SELECT @@system_time_zone as tz;
+-------+
| tz |
+-------+
| CET |
+-------+
It's part of the ES6 module system, described here. There is a helpful example in that documentation, also:
If a module defines a default export:
export default function() { console.log("hello!") }
then you can import that default export by omitting the curly braces:
import foo from "foo"; foo(); // hello!
Update: As of June 2015, the module system is defined in §15.2 and the export
syntax in particular is defined in §15.2.3 of the ECMAScript 2015 specification.
In C and C++, the &&
and ||
operators "short-circuit". That means that they only evaluate a parameter if required. If the first parameter to &&
is false, or the first to ||
is true, the rest will not be evaluated.
The code you posted is safe, though I question why you'd include an empty else
block.
If no From: header is specified in the e-mail headers, the MTA uses the full name of the current user, in this case "Apache". You can edit full user names in /etc/passwd
We can take a simple example.
Consider a table named TableA
with the following values:
id firstname lastname Mark
-------------------------------------------------------------------
1 arun prasanth 40
2 ann antony 45
3 sruthy abc 41
6 new abc 47
1 arun prasanth 45
1 arun prasanth 49
2 ann antony 49
GROUP BY
The SQL GROUP BY clause can be used in a SELECT statement to collect data across multiple records and group the results by one or more columns.
In more simple words GROUP BY statement is used in conjunction with the aggregate functions to group the result-set by one or more columns.
Syntax:
SELECT expression1, expression2, ... expression_n,
aggregate_function (aggregate_expression)
FROM tables
WHERE conditions
GROUP BY expression1, expression2, ... expression_n;
We can apply GROUP BY
in our table:
select SUM(Mark)marksum,firstname from TableA
group by id,firstName
Results:
marksum firstname
----------------
94 ann
134 arun
47 new
41 sruthy
In our real table we have 7 rows and when we apply GROUP BY id
, the server group the results based on id
:
In simple words:
here
GROUP BY
normally reduces the number of rows returned by rolling them up and calculatingSum()
for each row.
PARTITION BY
Before going to PARTITION BY, let us look at the OVER
clause:
According to the MSDN definition:
OVER clause defines a window or user-specified set of rows within a query result set. A window function then computes a value for each row in the window. You can use the OVER clause with functions to compute aggregated values such as moving averages, cumulative aggregates, running totals, or a top N per group results.
PARTITION BY will not reduce the number of rows returned.
We can apply PARTITION BY in our example table:
SELECT SUM(Mark) OVER (PARTITION BY id) AS marksum, firstname FROM TableA
Result:
marksum firstname
-------------------
134 arun
134 arun
134 arun
94 ann
94 ann
41 sruthy
47 new
Look at the results - it will partition the rows and returns all rows, unlike GROUP BY.
Alternatively, you can use the CHAR
function:
= "Maurice " & CHAR(34) & "Rocket" & CHAR(34) & " Richard"
I realize this question is over a year old, but I just stumbled across it in dealing with a similar problem and thought I would share another potential solution in case it might help a future traveler (or myself, when I forget this later and find myself flopping around on StackOverflow between screams and throwings of the nearest object on my desk).
In my case I was able to get the effect I wanted by using a DataGridTemplateColumn instead of a DataGridComboBoxColumn, a la the following snippet. [caveat: I'm using .NET 4.0, and what I've been reading leads me to believe the DataGrid has done a lot of evolving, so YMMV if using earlier version]
<DataGridTemplateColumn Header="Identifier_TEMPLATED">
<DataGridTemplateColumn.CellEditingTemplate>
<DataTemplate>
<ComboBox IsEditable="False"
Text="{Binding ComponentIdentifier,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}"
ItemsSource="{Binding Path=ApplicableIdentifiers, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}" />
</DataTemplate>
</DataGridTemplateColumn.CellEditingTemplate>
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<TextBlock Text="{Binding ComponentIdentifier}" />
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
I came across this question when trying to check if a file existed on an FTP site or not. If the file doesn't exist there will be an error when trying to check its timestamp. But I want to make sure the error is not something else, by checking its type.
The Response
property on WebException
will be of type FtpWebResponse
on which you can check its StatusCode
property to see which FTP error you have.
Here's the code I ended up with:
public static bool FileExists(string host, string username, string password, string filename)
{
// create FTP request
FtpWebRequest request = (FtpWebRequest)WebRequest.Create("ftp://" + host + "/" + filename);
request.Credentials = new NetworkCredential(username, password);
// we want to get date stamp - to see if the file exists
request.Method = WebRequestMethods.Ftp.GetDateTimestamp;
try
{
FtpWebResponse response = (FtpWebResponse)request.GetResponse();
var lastModified = response.LastModified;
// if we get the last modified date then the file exists
return true;
}
catch (WebException ex)
{
var ftpResponse = (FtpWebResponse)ex.Response;
// if the status code is 'file unavailable' then the file doesn't exist
// may be different depending upon FTP server software
if (ftpResponse.StatusCode == FtpStatusCode.ActionNotTakenFileUnavailable)
{
return false;
}
// some other error - like maybe internet is down
throw;
}
}
I think most easy way is using Subject. In bellow example code the child will be notified each time 'tellChild' is called.
Parent.component.ts
import {Subject} from 'rxjs/Subject';
...
export class ParentComp {
changingValue: Subject<boolean> = new Subject();
tellChild(){
this.changingValue.next(true);
}
}
Parent.component.html
<my-comp [changing]="changingValue"></my-comp>
Child.component.ts
...
export class ChildComp implements OnInit{
@Input() changing: Subject<boolean>;
ngOnInit(){
this.changing.subscribe(v => {
console.log('value is changing', v);
});
}
Working sample on Stackblitz
I just type following keywords in the opened terminal;
See details in the below image. (VSCode version 1.19.1 - windows 10 OS)
It works on VS Code Mac as well. I tried it with VSCode (Version 1.20.1)
You are using
States states;
where as you should use
States *states;
Your init method should be like this
-(id)init {
if( (self = [super init]) ) {
pickedGlasses = 0;
}
return self;
}
Now finally when you are going to create an object for States class you should do it like this.
State *states = [[States alloc] init];
I am not saying this is the best way of doing this. But it may help you understand the very basic use of initializing objects.
This also happened to me but using Dynamic Features. I already had Java 8 compatibility enabled in the app module but I had to add this compatibility lines to the Dynamic Feature module and then it worked.
I think this is the best and easiest way to do it:
if (!(isset($action) && ($action == "add" || $action == "delete")))
Yet another way in Python 3:
s.__iter__().__next__()
The format is hostname/pathname/search
So the url is :
var url = window.location.hostname + window.location.pathname + window.location.hash
For your case
window.location.hostname = "stackoverflow.com"
window.location.pathname ="/questions/25203124/how-to-get-base-url-with-jquery-or-javascript"
window.location.hash = ""
So basically the baseurl = hostname = window.location.hostname
I've used this creating an IFrame through Javascript and it worked for me:
// IFrame points to the IFrame element, obviously
IFrame.src = 'about: blank';
IFrame.style.backgroundColor = "transparent";
IFrame.frameBorder = "0";
IFrame.allowTransparency="true";
Not sure if it makes any difference, but I set those properties before adding the IFrame to the DOM. After adding it to the DOM, I set its src to the real URL.
In my case, I used a button to show the modal
<button type="button" class="btn btn-success" style="color:white"
data-toggle="modal" data-target="#my-modal-to-show" >
<i class="fas fa-plus"></i> Call MODAL
</button>
So in my code, to close the modal (that has the id = 'my-modal-to-show') I call that function (in Angular typescript):
closeById(modalId: string) {
$(modalId).modal('toggle');
$(modalId+ ' .close').click();
}
If I call $(modalId).modal('hide') it does't work and I don't know why
PS.: in my modal I coded that button element with .close class too
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
There are cases where a rotation is applied and/or a Z index is used.
Rotation: An existing declaration of -webkit-transform
to rotate an element might not be enough to tackle the appearance problem as well (like -webkit-transform: rotate(-45deg)
). In this case you can use -webkit-transform: translateZ(0px) rotateZ(-45deg)
as a trick (mind the rotateZ).
Z index: Together with the rotation you might define a positive z-index
property, like z-index: 42
. The above steps described under "Rotation" were in my case enough to resolve the issue, even with the empty translateZ(0px)
. I suspect though that the Z index in this case may have caused the disappearing and reappearing in the first place. In any case the z-index: 42
property needs to be kept -- -webkit-transform: translateZ(42px)
only is not enough.
To get rid of permission errors (and such), you can redirect stderr to nowhere
find / -name "something" 2>/dev/null
From https://api.jquery.com/change/:
The change
event is sent to an element when its value changes. This event is limited to <input>
elements, <textarea>
boxes and <select>
elements. For select boxes, checkboxes, and radio buttons, the event is fired immediately when the user makes a selection with the mouse, but for the other element types the event is deferred until the element loses focus.
I would:
nicholas@mordor:~/flwor$
nicholas@mordor:~/flwor$ cat ugly.xml
<root><foo a="b">lorem</foo><bar value="ipsum" /></root>
nicholas@mordor:~/flwor$
nicholas@mordor:~/flwor$ basex
BaseX 9.0.1 [Standalone]
Try 'help' to get more information.
>
> create database pretty
Database 'pretty' created in 231.32 ms.
>
> open pretty
Database 'pretty' was opened in 0.05 ms.
>
> set parser xml
PARSER: xml
>
> add ugly.xml
Resource(s) added in 161.88 ms.
>
> xquery .
<root>
<foo a="b">lorem</foo>
<bar value="ipsum"/>
</root>
Query executed in 179.04 ms.
>
> exit
Have fun.
nicholas@mordor:~/flwor$
if only because then it's "in" a database, and not "just" a file. Easier to work with, to my mind.
Subscribing to the belief that others have worked this problem out already. If you prefer, no doubt eXist
might even be "better" at formatting xml
, or as good.
You can always query the data various different ways, of course. I kept it as simple as possible. You can just use a GUI, too, but you specified console.
you can define a route in web.php
Route::get('/clear/route', 'ConfigController@clearRoute');
and make ConfigController.php like this
class ConfigController extends Controller
{
public function clearRoute()
{
\Artisan::call('route:clear');
}
}
and go to that route on server example http://your-domain/clear/route
Use DATEPART to pull apart your interval, and DATEADD to subtract the parts:
select dateadd(
hh,
-1 * datepart(hh, cast('1:15' as datetime)),
dateadd(
mi,
-1 * datepart(mi, cast('1:15' as datetime)),
'2000-01-01 08:30:00'))
or, we can convert to minutes first (though OP would prefer not to):
declare @mins int
select @mins = datepart(mi, cast('1:15' as datetime)) + 60 * datepart(hh, cast('1:15' as datetime))
select dateadd(mi, -1 * @mins, '2000-01-01 08:30:00')
you can try this way
desired o/p: Enabling feature XYZ......Done
you can use below command
$a = "Enabling feature XYZ"
Write-output "$a......Done"
you have to add variable and statement inside quotes. hope this is helpful :)
Thanks Techiegal
You just need to do:
#!/bin/bash
count=$(cat last_queries.txt | wc -l)
$(perl test.pl test2 $count)
However, if you want to call your Perl command later, and that's why you want to assign it to a variable, then:
#!/bin/bash
count=$(cat last_queries.txt | wc -l)
var="perl test.pl test2 $count" # You need double quotes to get your $count value substituted.
...stuff...
eval $var
As per Bash's help:
~$ help eval
eval: eval [arg ...]
Execute arguments as a shell command.
Combine ARGs into a single string, use the result as input to the shell,
and execute the resulting commands.
Exit Status:
Returns exit status of command or success if command is null.
$ENV{FOO}
for usage, where FOO
is being picked up from the environment variable. otherwise use as ${FOO}
, where FOO
is some other variable. For setting, SET(FOO "foo")
would be used in CMake.
For me, this was solved by reverting the commit I had pushed, then cherry-picking that commit to the other branch.
git checkout branch_that_had_the_commit_originally
git revert COMMIT-HASH
git checkout branch_that_was_supposed_to_have_the_commit
git cherry pick COMMIT-HASH
You can use git log
to find the correct hash, and you can push these changes whenever you like!
Other simple way is to do this:
string path = @"C:\Folder1\Folder2\Folder3\Folder4";
string newPath = Path.GetFullPath(Path.Combine(path, @"..\..\"));
Note This goes two levels up. The result would be:
newPath = @"C:\Folder1\Folder2\";
You could create a mutable wrapper of the primitive int and create a Set of those:
class MutableInteger
{
private int value;
public int getValue()
{
return value;
}
public void setValue(int value)
{
this.value = value;
}
}
class Test
{
public static void main(String[] args)
{
Set<MutableInteger> mySet = new HashSet<MutableInteger>();
// populate the set
// ....
for (MutableInteger integer: mySet)
{
integer.setValue(integer.getValue() + 1);
}
}
}
Of course if you are using a HashSet you should implement the hash, equals method in your MutableInteger but that's outside the scope of this answer.
Instead of using the quick array initialisation syntax too, you could just initialise it as a List straight away in a similar manner using the Arrays.asList method, e.g.:
public static final List<String> STRINGS = Arrays.asList("firstString", "secondString" ...., "lastString");
Then you can do (like above):
STRINGS.contains("the string you want to find");
Solution:
<!DOCTYPE HTML>
<html>
<head>
<title>Knowledge is Power</title>
<script src="js/jquery.js"></script>
<script type="text/javascript">
</script>
<style type="text/css">
#outer {
text-align:center;
width:100%;
height:200px;
background:red;
}
#inner {
display:inline-block;
height:200px;
background:yellow;
}
</style>
</head>
<body>
<div id="outer">
<div id="inner">Hello, I am Touhid Rahman. The man in Light</div>
</div>
</body>
</html>
If you define table type as InnoDB, you can use transactions. You will need set AUTOCOMMIT=0
, and after you can issue COMMIT
or ROLLBACK
at the end of query or session to submit or cancel a transaction.
ROLLBACK -- will undo the changes that you have made
There actually doesn't seem to be a lot of explanation on this subject apparently but the exit codes are supposed to be used to give an indication on how the thread exited, 0
tends to mean that it exited safely whilst anything else tends to mean it didn't exit as expected. But then this exit code can be set in code by yourself to completely overlook this.
The closest link I could find to be useful for more information is this
Quote from above link:
What ever the method of exiting, the integer that you return from your process or thread must be values from 0-255(8bits). A zero value indicates success, while a non zero value indicates failure. Although, you can attempt to return any integer value as an exit code, only the lowest byte of the integer is returned from your process or thread as part of an exit code. The higher order bytes are used by the operating system to convey special information about the process. The exit code is very useful in batch/shell programs which conditionally execute other programs depending on the success or failure of one.
From the Documentation for GetEXitCodeThread
Important The GetExitCodeThread function returns a valid error code defined by the application only after the thread terminates. Therefore, an application should not use STILL_ACTIVE (259) as an error code. If a thread returns STILL_ACTIVE (259) as an error code, applications that test for this value could interpret it to mean that the thread is still running and continue to test for the completion of the thread after the thread has terminated, which could put the application into an infinite loop.
My understanding of all this is that the exit code doesn't matter all that much if you are using threads within your own application for your own application. The exception to this is possibly if you are running a couple of threads at the same time that have a dependency on each other. If there is a requirement for an outside source to read this error code, then you can set it to let other applications know the status of your thread.
You should use the ISO-8601 format for string representations of dates - anything else is dependent on the SQL Server language and dateformat settings.
The ISO-8601 format for a DATETIME
when using only the date is: YYYYMMDD
(no dashes or antyhing!)
For a DATETIME
with the time portion, it's YYYY-MM-DDTHH:MM:SS
(with dashes, and a T
in the middle to separate date and time portions).
If you want to convert a string to a DATE
for SQL Server 2008 or newer, you can use YYYY-MM-DD
(with the dashes) to achieve the same result. And don't ask me why this is so inconsistent and confusing - it just is, and you'll have to work with that for now.
So in your case, you should try:
declare @a datetime
declare @b datetime
set @a = '2012-04-06T12:23:45' -- 6th of April, 2012
set @b = '2012-08-06T21:10:12' -- 6th of August, 2012
exec LogProcedure 'AccountLog', N'test', @a, @b
Furthermore - your stored proc has problem, since you're concatenating together datetime
and string into a string, but you're not converting the datetime
to string first, and also, you're forgetting the close quotes in your statement after both dates.
So change this line here to this:
IF @DateFirst <> '' and @DateLast <> ''
SET @FinalSQL = @FinalSQL + ' OR CONVERT(Date, DateLog) >= ''' +
CONVERT(VARCHAR(50), @DateFirst, 126) + -- convert @DateFirst to string for concatenation!
''' AND CONVERT(Date, DateLog) <=''' + -- you need closing quotes after @DateFirst!
CONVERT(VARCHAR(50), @DateLast, 126) + '''' -- convert @DateLast to string and also: closing tags after that missing!
With these settings, and once you've fixed your stored procedure which contains problems right now, it will work.
It is working now congrats
Under HTML5 you are be able to do this:
document.getElementById('test').selectedOptions[0].text
MDN's documentation at https://developer.mozilla.org/en-US/docs/Web/API/HTMLSelectElement/selectedOptions indicates full cross-browser support (as of at least December 2017), including Chrome, Firefox, Edge and mobile browsers, but excluding Internet Explorer.
Looks like your file.next() line in the while loop is throwing the NoSuchElementException since the scanner reached the end of file. Read the next() java API here
Also you should not call next() in the loop and also in the while condition. In the while condition you should check if next token is available and inside the while loop check if its equal to treasure.
Hashtables/Dictionaries are O(1) performance, meaning that performance is not a function of size. That's important to know.
EDIT: In practice, the average time complexity for Hashtable/Dictionary<> lookups is O(1).
If you'd prefer to do it in SQL, enter this query into the query window:
CREATE SCHEMA Test
Press CTRL + Enter to submit it, and you should see confirmation in the output pane underneath the query window. You'll have to right-click on an existing schema in the Object panel and click "Refresh All" to see it show up, though.
Recently I wanted to learn how to compile Intel x86 on Mac OS X:
-o hello.tmp - outfile
-f macho - specify format
Linux - elf or elf64
Mac OSX - macho
-arch i386 - specify architecture (32 bit assembly)
-macosx_version_min 10.6 (Mac OSX - complains about default specification)
-no_pie (Mac OSX - removes ld warning)
-e main - specify main symbol name (Mac OSX - default is start)
-o hello.o - outfile
./hello.o - execution
nasm -o hello.tmp -f macho hello.s && ld -arch i386 -macosx_version_min 10.6 -no_pie -e _main -o hello.o hello.tmp && ./hello.o
Let me know if this helps!
I wrote how to do it on my blog here:
http://blog.burrowsapps.com/2013/07/how-to-compile-helloworld-in-intel-x86.html
For a more verbose explanation, I explained on my Github here:
Here's a different implementation of Jenny Lang's answer that works for Rails 5.
First create the migration file:
bundle exec be rails g migration DropEpisodes
Then populate the migration file as follows:
class DropEpisodes < ActiveRecord::Migration[5.1]
def change
drop_table :episodes
end
end
Running rails db:migrate
will drop the table. If you run rails db:rollback
, Rails will throw a ActiveRecord::IrreversibleMigration
error.
My problem was that in httpd.conf the DocumentRoot
and <Directory>
entries were pointing to non-existing folders.
For example, the 'original' httpd.conf had the following entries:
DocumentRoot "c:/Apache24/htdocs"
<Directory "c:/Apache24/htdocs">
If you've installed in C:\xampp then you need to change those entries to match, i.e.
DocumentRoot "c:/xampp/htdocs"
<Directory "c:/xampp/htdocs">
i have used following line of code & it works fine Thanks.... @Mithun Sasidharan **
SELECT DATE_FORMAT(column_name, '%d/%m/%Y') FROM tablename
**
I have the same issue, I'm not able to open a CSV file in Excel. I've found a solution that worked for me in this question Opening a file in excel via Workbooks.OpenText
That question helped me to figure out a code that works for me. The code looks more or less like this:
Private Sub OpenCSVFile(filename as String)
Dim datasourceFilename As String
Dim currentPath As String
datasourceFilename = "\" & filename & ".csv"
currentPath = ActiveWorkbook.Path
Workbooks.OpenText Filename:=currentPath & datasourceFilename, _
Origin:=xlWindows, _
StartRow:=1, _
DataType:=xlDelimited, _
TextQualifier:=xlDoubleQuote, _
ConsecutiveDelimiter:=False, _
Tab:=False, _
Semicolon:=False, _
Comma:=True, _
Space:=False, _
Other:=False, _
FieldInfo:=Array(Array(1, 1), Array(2, 1)), _
DecimalSeparator:=".", _
ThousandsSeparator:=",", _
TrailingMinusNumbers:=True
End Sub
At least, it helped me to know about lots of parameters I can use with Workbooks.OpenText
method.
Some online API's work pretty well: ocr.space and Google Cloud Vision. Both of these are free, as long as you do less than 1000 OCR's per month. You can drag & drop an image to do a quick manual test to see how they perform for your images.
I find OCR.space easier to use (no messing around with nuget libraries), but, for my purpose, Google Cloud Vision provided slightly better results than OCR.space.
Google Cloud Vision example:
GoogleCredential cred = GoogleCredential.FromJson(json);
Channel channel = new Channel(ImageAnnotatorClient.DefaultEndpoint.Host, ImageAnnotatorClient.DefaultEndpoint.Port, cred.ToChannelCredentials());
ImageAnnotatorClient client = ImageAnnotatorClient.Create(channel);
Image image = Image.FromStream(stream);
EntityAnnotation googleOcrText = client.DetectText(image).First();
Console.Write(googleOcrText.Description);
OCR.space example:
string uri = $"https://api.ocr.space/parse/imageurl?apikey=helloworld&url={imageUri}";
string responseString = WebUtilities.DoGetRequest(uri);
OcrSpaceResult result = JsonConvert.DeserializeObject<OcrSpaceResult>(responseString);
if ((!result.IsErroredOnProcessing) && !String.IsNullOrEmpty(result.ParsedResults[0].ParsedText))
return result.ParsedResults[0].ParsedText;
You need to declare the desired function before your main function:
#include <stdio.h>
int yourfunc(void);
int main(void) {
yourfunc();
}
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$("#suburb").blur(function() {
if ($(this).val() != '')
$("#post_code").attr("disabled", "disabled");
else
$("#post_code").removeAttr("disabled");
});
$("#post_code").blur(function() {
if ($(this).val() != '')
$("#suburb").attr("disabled", "disabled");
else
$("#suburb").removeAttr("disabled");
});
});
</script>
You'll also need to add a value attribute to the first option under your select element:
<option value=""></option>
Well! As I saw my question now, I realized that I didn't want to mention fixed margin value because of the dynamic height of header.
Here is what I have been using for such scenarios.
Calculate the header height using jQuery and apply that as a top margin value.
var divHeight = $('#header-wrap').height();
$('#container').css('margin-top', divHeight+'px');
i have just tried it and this works perfectly
USE YourDatabseName
GO
SELECT t.name AS table_name,
SCHEMA_NAME(schema_id) AS schema_name,
c.name AS column_name
FROM sys.tables AS t
INNER JOIN sys.columns c ON t.OBJECT_ID = c.OBJECT_ID
WHERE c.name LIKE '%YourColumnName%'
ORDER BY schema_name, table_name;
Only change YourDatbaseName to your database and YourcolumnName to your column name that you are looking for the rest keep it as it is.
Hope this has helped
use DIRECTORY option.
Documentation here: http://docs.oracle.com/cd/E11882_01/server.112/e22490/dp_import.htm#SUTIL907
DIRECTORY
Default: DATA_PUMP_DIR
Purpose
Specifies the default location in which the import job can find the dump file set and where it should create log and SQL files.
Syntax and Description
DIRECTORY=directory_object
The directory_object is the name of a database directory object (not the file path of an actual directory). Upon installation, privileged users have access to a default directory object named DATA_PUMP_DIR. Users with access to the default DATA_PUMP_DIR directory object do not need to use the DIRECTORY parameter at all.
A directory object specified on the DUMPFILE, LOGFILE, or SQLFILE parameter overrides any directory object that you specify for the DIRECTORY parameter. You must have Read access to the directory used for the dump file set and Write access to the directory used to create the log and SQL files.
Example
The following is an example of using the DIRECTORY parameter. You can create the expfull.dmp dump file used in this example by running the example provided for the Export FULL parameter. See "FULL".
> impdp hr DIRECTORY=dpump_dir1 DUMPFILE=expfull.dmp
LOGFILE=dpump_dir2:expfull.log
This command results in the import job looking for the expfull.dmp dump file in the directory pointed to by the dpump_dir1 directory object. The dpump_dir2 directory object specified on the LOGFILE parameter overrides the DIRECTORY parameter so that the log file is written to dpump_dir2.
There are two types of measurements you can use for specifying widths, heights, margins etc: relative and fixed.
An example of a relative measurement is percentages, which you have used. Percentages are relevant to their containing element. If there is no containing element they are relative to the window.
<div style="width:100%">
<!-- This div will be the full width of the browser, whatever size it is -->
<div style="width:300px">
<!-- this div will be 300px, whatever size the browser is -->
<p style="width:50%">
This paragraph's width will be 50% of it's parent (150px).
</p>
</div>
</div>
Another relative measurement is ems which are relative to font size.
An example of a fixed measurement is pixels but a fixed measurement can also be pt (points), cm (centimetres) etc. Fixed (sometimes called absolute) measurements are always the same size. A pixel is always a pixel, a centimetre is always a centimetre.
If you were to use fixed measurements for your sizes the browser size wouldn't affect the layout.
Try this:
SELECT h.year, h.id, h.rate
FROM (SELECT h.year, h.id, h.rate, IF(@lastid = (@lastid:=h.id), @index:=@index+1, @index:=0) indx
FROM (SELECT h.year, h.id, h.rate
FROM h
WHERE h.year BETWEEN 2000 AND 2009 AND id IN (SELECT rid FROM table2)
GROUP BY id, h.year
ORDER BY id, rate DESC
) h, (SELECT @lastid:='', @index:=0) AS a
) h
WHERE h.indx <= 5;
System.IO.File.GetLastWriteTime is what you need.
import time
year = time.strftime("%Y") # or "%y"
I found out that, on iPhone 4 with IOS 7, you CAN put a body to the SMS only if you set a phone number in the list of contact of the phone.
So the following will work If 0606060606 is part of my contacts:
<a href="sms:0606060606;body=Hello my friend">Send SMS</a>
By the way, on iOS 6 (iPhone 3GS), it's working with just a body :
<a href="sms:;body=Hello my friend">Send SMS</a>
You can do it fast, only using one POSIX function. If you have bunch of tasks with dates, see the module DateTime.
use POSIX qw(strftime);
my $date = strftime "%m/%d/%Y", localtime;
print $date;
As you set application/x-www-form-urlencoded
as content type so data sent must be like this format.
String urlParameters = "param1=data1¶m2=data2¶m3=data3";
Sending part now is quite straightforward.
byte[] postData = urlParameters.getBytes( StandardCharsets.UTF_8 );
int postDataLength = postData.length;
String request = "<Url here>";
URL url = new URL( request );
HttpURLConnection conn= (HttpURLConnection) url.openConnection();
conn.setDoOutput(true);
conn.setInstanceFollowRedirects(false);
conn.setRequestMethod("POST");
conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
conn.setRequestProperty("charset", "utf-8");
conn.setRequestProperty("Content-Length", Integer.toString(postDataLength ));
conn.setUseCaches(false);
try(DataOutputStream wr = new DataOutputStream(conn.getOutputStream())) {
wr.write( postData );
}
Or you can create a generic method to build key value pattern which is required for application/x-www-form-urlencoded
.
private String getDataString(HashMap<String, String> params) throws UnsupportedEncodingException{
StringBuilder result = new StringBuilder();
boolean first = true;
for(Map.Entry<String, String> entry : params.entrySet()){
if (first)
first = false;
else
result.append("&");
result.append(URLEncoder.encode(entry.getKey(), "UTF-8"));
result.append("=");
result.append(URLEncoder.encode(entry.getValue(), "UTF-8"));
}
return result.toString();
}
By example:
# select distinct code from Platform where id in ( select platform__id from Build where product=p)
pl_ids = Build.objects.values('platform__id').filter(product=p)
platforms = Platform.objects.values_list('code', flat=True).filter(id__in=pl_ids).distinct('code')
platforms = list(platforms) if platforms else []
I had the same problem even though I had:
a freshly downloaded JDK 1.8.0
JAVA_HOME is set
java -version on command line reports 1.8
Java in control panel is set to 1.8
downloaded Eclipse Mars
Eclipse only let me choose a compiler compliance level op to 1.7 in the compiler preferences, even though my installed JRE is 1.8.0. I also couldn't see a 1.8 in the Execution Environments underneath Installed JREs, only a JavaSE-1.7 (which I haven't even got installed!). When I clicked on that, it shows "jdk1.8.0" as a compatible JRE, so I selected that, but still no change.
Then I unzipped Eclipse Mars into a brand new directory, created a new project, and now I can select 1.8, hurrah! That greatly reduced the "Duplicate methods named spliterator..." errors I was getting when compiling my code under Java 1.8, however, there is still one left:
Duplicate default methods named spliterator with the parameters () and () are inherited from the types List and Set.
However, that's likely because I'm extending AbstractList and implementing Set, so I've fixed that for now by removing the implements Set because it doesn't really add anything in my case (other than signifying that my collection has only unique elements)
This is more the Angular way to do it: http://plnkr.co/edit/xYNX47EsYvl4aRuGZmvo?p=preview
ng-click
. Your final requirements may be different, but using a directive to bind click
and change src
was overkill, since most of it can be handled with templatebackground-image
, then you'll need a directive like ngSrc that defers setting the background-image
style until after real data has loaded.If you use PyCharm, please change you 'Project Interpreter' to '2.7.x'
/^\+?1?\s*?\(?\d{3}(?:\)|[-|\s])?\s*?\d{3}[-|\s]?\d{4}$/
Although this post is an old but want to leave my contribuition. these are accepted: 5555555555 555-555-5555 (555)555-5555 1(555)555-5555 1 555 555 5555 1 555-555-5555 1 (555) 555-5555
these are not accepted:
555-5555 -> to accept this use: ^\+?1?\s*?\(?(\d{3})?(?:\)|[-|\s])?\s*?\d{3}[-|\s]?\d{4}$
5555555 -> to accept this use: ^\+?1?\s*?\(?(\d{3})?(?:\)|[-|\s])?\s*?\d{3}[-|\s]?\d{4}$
1 555)555-5555 123**&!!asdf# 55555555 (6505552368) 2 (757) 622-7382 0 (757) 622-7382 -1 (757) 622-7382 2 757 622-7382 10 (757) 622-7382 27576227382 (275)76227382 2(757)6227382 2(757)622-7382 (555)5(55?)-5555
this is the code I used:
function telephoneCheck(str) {
var patt = new RegExp(/^\+?1?\s*?\(?\d{3}(?:\)|[-|\s])?\s*?\d{3}[-|\s]?\d{4}$/);
return patt.test(str);
}
telephoneCheck("+1 555-555-5555");
-mmin is for minutes.
Try looking at the man page.
man find
for more types.
Use System.currentTimeMillis() or System.nanoTime() if you want even more precise reading. Usually, milliseconds is precise enough if you need to output the value to the user. Moreover, System.nanoTime()
may return negative values, thus it may be possible that, if you're using that method, the return value is not correct.
A general and wide use would be to use milliseconds :
long start = System.currentTimeMillis();
...
long end = System.currentTimeMillis();
NumberFormat formatter = new DecimalFormat("#0.00000");
System.out.print("Execution time is " + formatter.format((end - start) / 1000d) + " seconds");
Note that nanoseconds are usually used to calculate very short and precise program executions, such as unit testing and benchmarking. Thus, for overall program execution, milliseconds are preferable.
You could use the pickle
module in the standard library.
Here's an elementary application of it to your example:
import pickle
class Company(object):
def __init__(self, name, value):
self.name = name
self.value = value
with open('company_data.pkl', 'wb') as output:
company1 = Company('banana', 40)
pickle.dump(company1, output, pickle.HIGHEST_PROTOCOL)
company2 = Company('spam', 42)
pickle.dump(company2, output, pickle.HIGHEST_PROTOCOL)
del company1
del company2
with open('company_data.pkl', 'rb') as input:
company1 = pickle.load(input)
print(company1.name) # -> banana
print(company1.value) # -> 40
company2 = pickle.load(input)
print(company2.name) # -> spam
print(company2.value) # -> 42
You could also define your own simple utility like the following which opens a file and writes a single object to it:
def save_object(obj, filename):
with open(filename, 'wb') as output: # Overwrites any existing file.
pickle.dump(obj, output, pickle.HIGHEST_PROTOCOL)
# sample usage
save_object(company1, 'company1.pkl')
Since this is such a popular answer, I'd like touch on a few slightly advanced usage topics.
cPickle
(or _pickle
) vs pickle
It's almost always preferable to actually use the cPickle
module rather than pickle
because the former is written in C and is much faster. There are some subtle differences between them, but in most situations they're equivalent and the C version will provide greatly superior performance. Switching to it couldn't be easier, just change the import
statement to this:
import cPickle as pickle
In Python 3, cPickle
was renamed _pickle
, but doing this is no longer necessary since the pickle
module now does it automatically—see What difference between pickle and _pickle in python 3?.
The rundown is you could use something like the following to ensure that your code will always use the C version when it's available in both Python 2 and 3:
try:
import cPickle as pickle
except ModuleNotFoundError:
import pickle
pickle
can read and write files in several different, Python-specific, formats, called protocols as described in the documentation, "Protocol version 0" is ASCII and therefore "human-readable". Versions > 0 are binary and the highest one available depends on what version of Python is being used. The default also depends on Python version. In Python 2 the default was Protocol version 0
, but in Python 3.8.1, it's Protocol version 4
. In Python 3.x the module had a pickle.DEFAULT_PROTOCOL
added to it, but that doesn't exist in Python 2.
Fortunately there's shorthand for writing pickle.HIGHEST_PROTOCOL
in every call (assuming that's what you want, and you usually do), just use the literal number -1
— similar to referencing the last element of a sequence via a negative index.
So, instead of writing:
pickle.dump(obj, output, pickle.HIGHEST_PROTOCOL)
You can just write:
pickle.dump(obj, output, -1)
Either way, you'd only have specify the protocol once if you created a Pickler
object for use in multiple pickle operations:
pickler = pickle.Pickler(output, -1)
pickler.dump(obj1)
pickler.dump(obj2)
etc...
Note: If you're in an environment running different versions of Python, then you'll probably want to explicitly use (i.e. hardcode) a specific protocol number that all of them can read (later versions can generally read files produced by earlier ones).
While a pickle file can contain any number of pickled objects, as shown in the above samples, when there's an unknown number of them, it's often easier to store them all in some sort of variably-sized container, like a list
, tuple
, or dict
and write them all to the file in a single call:
tech_companies = [
Company('Apple', 114.18), Company('Google', 908.60), Company('Microsoft', 69.18)
]
save_object(tech_companies, 'tech_companies.pkl')
and restore the list and everything in it later with:
with open('tech_companies.pkl', 'rb') as input:
tech_companies = pickle.load(input)
The major advantage is you don't need to know how many object instances are saved in order to load them back later (although doing so without that information is possible, it requires some slightly specialized code). See the answers to the related question Saving and loading multiple objects in pickle file? for details on different ways to do this. Personally I like @Lutz Prechelt's answer the best. Here's it adapted to the examples here:
class Company:
def __init__(self, name, value):
self.name = name
self.value = value
def pickled_items(filename):
""" Unpickle a file of pickled data. """
with open(filename, "rb") as f:
while True:
try:
yield pickle.load(f)
except EOFError:
break
print('Companies in pickle file:')
for company in pickled_items('company_data.pkl'):
print(' name: {}, value: {}'.format(company.name, company.value))
More IntelliJ 13+ Shortcuts for Terminal
Mac OS X:
alt ?F12
cmd ?shift ?A then type Terminal
then hit Enter
shift ?shift ?shift ?shift ? then type Terminal
then hit Enter
Windows:
altF12 press Enter
ctrlshift ?A start typing Terminal
then hit Enter
shift ?shift ? then type Terminal
then hit Enter
Here's a chart that may be helpful deciding which to use: http://blog.sematext.com/2011/09/19/top-javascript-dynamic-table-libraries/
Just be careful when you want to dismiss the dialog - use dialog.dismiss()
. In my first attempt I used dismissDialog(0)
(which I probably copied from some place) which sometimes works. Using the object the system supplies sounds like a safer choice.
Make sure you are not facing a "cross module" problem
If the component which is using the pipe, doesn't belong to the module which has declared the pipe component "globally" then the pipe is not found and you get this error message.
In my case I've declared the pipe in a separate module and imported this pipe module in any other module having components using the pipe.
I have declared a that the component in which you are using the pipe is
the Pipe Module
import { NgModule } from '@angular/core';
import { myDateFormat } from '../directives/myDateFormat';
@NgModule({
imports: [],
declarations: [myDateFormat],
exports: [myDateFormat],
})
export class PipeModule {
static forRoot() {
return {
ngModule: PipeModule,
providers: [],
};
}
}
Usage in another module (e.g. app.module)
// Import APPLICATION MODULES
...
import { PipeModule } from './tools/PipeModule';
@NgModule({
imports: [
...
, PipeModule.forRoot()
....
],
The JS answer to this question is:
or something similar
I think a more fundamental question should be asked is that why are you trying to test the private method in the first place. That is a code smell that you're trying to test the private method through that class' public interface whereas that method is private for a reason as it's an implementation detail. One should only be concerned with the behaviour of the public interface not on how it's implemented under the covers.
If I want to test the behaviour of the private method, by using common refactorings, I can extract its code into another class (maybe with package level visibility so ensure it's not part of a public API). I can then test its behaviour in isolation.
The product of the refactoring means that private method is now a separate class that has become a collaborator to the original class. Its behaviour will have become well understood via its own unit tests.
I can then mock its behaviour when I try to test the original class so that I can then concentrate on test the behaviour of that class' public interface rather than having to test a combinatorial explosion of the public interface and the behaviour of all its private methods.
I see this analogous to driving a car. When I drive a car I don't drive with the bonnet up so I can see that the engine is working. I rely on the interface the car provides, namely the rev counter and the speedometer to know the engine is working. I rely on the fact that the car actually moves when I press the gas pedal. If I want to test the engine I can do checks on that in isolation. :D
Of course testing private methods directly may be a last resort if you have a legacy application but I would prefer that legacy code is refactored to enable better testing. Michael Feathers has written a great book on this very subject. http://www.amazon.co.uk/Working-Effectively-Legacy-Robert-Martin/dp/0131177052
<content>(?:[^\n]*(\n+))+</content>
JsonNode node = mapper.readValue("[{\"id\":\"value11\",\"name\": \"value12\",\"qty\":\"value13\"},"
System.out.println("id : "+node.findValues("id").get(0).asText());
this also done the trick.
try this:
@echo off 2>Nul 3>Nul 4>Nul
ben ali
mubarak
gadeffi
..next ?
echo hello Tunisia
pause
In Java 8, you can use lambda expression:
map.keySet().removeIf(key -> key condition);
I was using some buttons with some events, converted image file coming from server. Loading normal data wasn't working for me, converting into Base64 working just fine.
String unencodedHtml ="<html><body>'%28' is the code for '('</body></html>";
tring encodedHtml = Base64.encodeToString(unencodedHtml.getBytes(), Base64.NO_PADDING);
webView.loadData(encodedHtml, "text/html", "base64");
Find details on WebView
You don't need to give local path. just give cdn link of bootstrap datetimepicker. and it works.
<html lang="en">_x000D_
<head>_x000D_
<meta charset="utf-8">_x000D_
<meta name="viewport" content="width=device-width, initial-scale=1">_x000D_
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>_x000D_
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-datepicker/1.6.4/js/bootstrap-datepicker.js"></script>_x000D_
_x000D_
</head>_x000D_
_x000D_
_x000D_
<body>_x000D_
_x000D_
<div class="container">_x000D_
<div class="row">_x000D_
<div class='col-sm-6'>_x000D_
<div class="form-group">_x000D_
<div class='input-group date' id='datetimepicker'>_x000D_
<input type='text' class="form-control" />_x000D_
<span class="input-group-addon">_x000D_
<span class="glyphicon glyphicon-calendar"></span>_x000D_
</span>_x000D_
</div>_x000D_
</div>_x000D_
</div>_x000D_
<script type="text/javascript">_x000D_
$(function () {_x000D_
$('#datetimepicker').datepicker();_x000D_
});_x000D_
</script>_x000D_
</div>_x000D_
</div>_x000D_
_x000D_
_x000D_
</body>_x000D_
</html>
_x000D_
If your viewport gets scrolled after the dialog displays, it will no longer be centered. It's possible to unintentionally cause the viewport to scroll by adding/removing content from the page. You can recenter the dialog window during scroll/resize events by calling:
$('my-selector').dialog('option', 'position', 'center');
You better try -XX:MaxPermSize=128M
rather than -XX:MaxPermGen=128M
.
I can not tell the precise use of this memory pool, but it have to do with the number of classes loaded into the JVM. (Thus enabling class unloading for tomcat can resolve the problem.) If your applications generates and compiles classes on the run it is more likely to need a memory pool bigger than the default.
Just tried this:
H:>"C:\Program Files\Microsoft SQL Server\90\Tools\Binn\sqlcmd.exe" -S ".\SQL2008" 1>
and it works.. (I have the Microsoft SQL Server\100\Tools\Binn directory in my path).
Still not sure why the SQL Server 2008 version of SQLCMD doesn't work though..
hyperjaxb (versions 2 and 3) actually generates hibernate mapping files and related entity objects and also does a round trip test for a given XSD and sample XML file. You can capture the log output and see the DDL statements for yourself. I had to tweak them a little bit, but it gives you a basic blue print to start with.
In my case one of the classes didn't have a default constructor - and class without default constructor can't be serialized.
You can't (usefully) compare strings using !=
or ==
, you need to use strcmp
:
while (strcmp(check,input) != 0)
The reason for this is because !=
and ==
will only compare the base addresses of those strings. Not the contents of the strings themselves.
I faced this problem when using a static page (e.g. index.html) as the start up page - Application-Start does not get called. I discovered that serving a static page does not actually start the application. Requesting an .aspx page does.
Looks like simply putting the link like this
http://dl.google.com/android/ndk/android-ndk-r7c-windows.zip
on the address bar of your browser
The revision names (r7c, r8c etc.) could be found from the ndk download page
Here is a demo code where there is pagination + Filtering with AngularJS :
https://codepen.io/lamjaguar/pen/yOrVym
JS :
var app=angular.module('myApp', []);
// alternate - https://github.com/michaelbromley/angularUtils/tree/master/src/directives/pagination
// alternate - http://fdietz.github.io/recipes-with-angular-js/common-user-interface-patterns/paginating-through-client-side-data.html
app.controller('MyCtrl', ['$scope', '$filter', function ($scope, $filter) {
$scope.currentPage = 0;
$scope.pageSize = 10;
$scope.data = [];
$scope.q = '';
$scope.getData = function () {
// needed for the pagination calc
// https://docs.angularjs.org/api/ng/filter/filter
return $filter('filter')($scope.data, $scope.q)
/*
// manual filter
// if u used this, remove the filter from html, remove above line and replace data with getData()
var arr = [];
if($scope.q == '') {
arr = $scope.data;
} else {
for(var ea in $scope.data) {
if($scope.data[ea].indexOf($scope.q) > -1) {
arr.push( $scope.data[ea] );
}
}
}
return arr;
*/
}
$scope.numberOfPages=function(){
return Math.ceil($scope.getData().length/$scope.pageSize);
}
for (var i=0; i<65; i++) {
$scope.data.push("Item "+i);
}
// A watch to bring us back to the
// first pagination after each
// filtering
$scope.$watch('q', function(newValue,oldValue){ if(oldValue!=newValue){
$scope.currentPage = 0;
}
},true);
}]);
//We already have a limitTo filter built-in to angular,
//let's make a startFrom filter
app.filter('startFrom', function() {
return function(input, start) {
start = +start; //parse to int
return input.slice(start);
}
});
HTML :
<div ng-app="myApp" ng-controller="MyCtrl">
<input ng-model="q" id="search" class="form-control" placeholder="Filter text">
<select ng-model="pageSize" id="pageSize" class="form-control">
<option value="5">5</option>
<option value="10">10</option>
<option value="15">15</option>
<option value="20">20</option>
</select>
<ul>
<li ng-repeat="item in data | filter:q | startFrom:currentPage*pageSize | limitTo:pageSize">
{{item}}
</li>
</ul>
<button ng-disabled="currentPage == 0" ng-click="currentPage=currentPage-1">
Previous
</button> {{currentPage+1}}/{{numberOfPages()}}
<button ng-disabled="currentPage >= getData().length/pageSize - 1" ng-click="currentPage=currentPage+1">
Next
</button>
</div>
Javascript isn't threaded, so a "wait" would freeze the entire page (and probably cause the browser to stop running the script entirely).
To specifically address your problem, you should remove the brackets after donothing
in your setTimeout
call, and make waitsecs
a number not a string:
console.log('before');
setTimeout(donothing,500); // run donothing after 0.5 seconds
console.log('after');
But that won't stop execution; "after" will be logged before your function runs.
To wait properly, you can use anonymous functions:
console.log('before');
setTimeout(function(){
console.log('after');
},500);
All your variables will still be there in the "after" section. You shouldn't chain these - if you find yourself needing to, you need to look at how you're structuring the program. Also you may want to use setInterval
/ clearInterval
if it needs to loop.
1. Include the Open Graph XML namespace extension to your HTML declaration
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:fb="http://ogp.me/ns/fb#">
2. Inside your <head></head>
use the following meta tag to define the image you want to use
<meta property="og:image" content="fully_qualified_image_url_here" />
Read more about open graph protocol here.
After doing the above, use the Facebook "Object Debugger" if the image does not show up correctly. Also note the first time shared it still won't show up unless height and width are also specified, see Share on Facebook - Thumbnail not showing for the first time
For example,
package main
import (
"fmt"
"strings"
)
func main() {
s := "\t Hello, World\n "
fmt.Printf("%d %q\n", len(s), s)
t := strings.TrimSpace(s)
fmt.Printf("%d %q\n", len(t), t)
}
Output:
16 "\t Hello, World\n "
12 "Hello, World"
As a general rule, you can use Database_Default collation so you don't need to figure out which one to use. However, I strongly suggest reading Simons Liew's excellent article Understanding the COLLATE DATABASE_DEFAULT clause in SQL Server
SELECT *
FROM [FAEB].[dbo].[ExportaComisiones] AS f
JOIN [zCredifiel].[dbo].[optPerson] AS p
ON (p.vTreasuryId = f.RFC) COLLATE Database_Default
You just need to make the siprimo and volteado methods static.
private static bool siprimo(long a)
and
private static long volteado(long a)
ROOT default app is usually Tomcat Manager - which can be useful so I felt like keeping it around.
So the way i made my app ROOT and kept TCmgr was like this.
renamed ROOT to something else
mv ROOT TCmgr
then created a symbolic link whereby ROOT points to the app i want to make the default.
ln -s <your app> ROOT
worked for me and seemed the easiest approach.
The correct syntax is:
import sampleModule = require('modulename');
or
import * as sampleModule from 'modulename';
Then compile your TypeScript with --module commonjs
.
If the package doesn't come with an index.d.ts
file and its package.json
doesn't have a "typings"
property, tsc
will bark that it doesn't know what 'modulename'
refers to. For this purpose you need to find a .d.ts
file for it on http://definitelytyped.org/, or write one yourself.
If you are writing code for Node.js you will also want the node.d.ts
file from http://definitelytyped.org/.
My solution is to use Process.GetProcess()
for listing all the processes.
By filtering them to contain the processes I want, I can then run Process.Kill()
method to stop them:
var chromeDriverProcesses = Process.GetProcesses().
Where(pr => pr.ProcessName == "chromedriver"); // without '.exe'
foreach (var process in chromeDriverProcesses)
{
process.Kill();
}
Update:
In case if want to use async
approach with some useful recent methods from the C# 8
(Async Enumerables), then check this out:
const string processName = "chromedriver"; // without '.exe'
await Process.GetProcesses()
.Where(pr => pr.ProcessName == processName)
.ToAsyncEnumerable()
.ForEachAsync(p => p.Kill());
Note: using async
methods doesn't always mean code will run faster, but it will not waste the CPU time and prevent the foreground thread from hanging while doing the operations. In any case, you need to think about what version you might want.
Add to top of the code,
#!/usr/bin/python
Then, run the following command on the terminal,
chmod +x yourScriptFile
Another way to do it is in your class:
import android.graphics.Color; // add to top of class
Button btn = (Button)findViewById(R.id.btn);
// set button text colour to be blue
btn.setTextColor(Color.parseColor("blue"));
// set button text colour to be red
btn.setTextColor(Color.parseColor("#FF0000"));
// set button text color to be a color from your resources (could be strings.xml)
btn.setTextColor(getResources().getColor(R.color.yourColor));
// set button background colour to be green
btn.setBackgroundColor(Color.GREEN);
The prompt you're getting doesn't look like Subversion asking you for a password, it looks like ssh asking for a password. So my guess is that you have checked out an svn+ssh:// checkout, not an svn:// or http:// or https:// checkout.
IIRC all the options you're trying only work for the svn/http/https checkouts. Can you run svn info to confirm what kind of repository you are using ?
If you are using ssh, you should set up key-based authentication so that your scripts will work without prompting for a password.
The part you're missing is converting from the integer to the type-safe enum. Java will not do it automatically. There's a couple of ways you can go about this:
guideView.GUIDE_VIEW_SEVEN_DAY.ordinal()
Determine the enum value represented by the int value and then switch on the enum value.
enum GuideView {
SEVEN_DAY,
NOW_SHOWING,
ALL_TIMESLOTS
}
// Working on the assumption that your int value is
// the ordinal value of the items in your enum
public void onClick(DialogInterface dialog, int which) {
// do your own bounds checking
GuideView whichView = GuideView.values()[which];
switch (whichView) {
case SEVEN_DAY:
...
break;
case NOW_SHOWING:
...
break;
}
}
You may find it more helpful / less error prone to write a custom valueOf
implementation that takes your integer values as an argument to resolve the appropriate enum value and lets you centralize your bounds checking.
If you are a Windows user you may uninstall Composer. Then install Composer. After that you install Laravel. Maybe it will work.
On Windows you can use win32gui:
import win32gui
import win32con
import subprocess
class HideFox:
def __init__(self, exe='firefox.exe'):
self.exe = exe
self.get_hwnd()
def get_hwnd(self):
win_name = get_win_name(self.exe)
self.hwnd = win32gui.FindWindow(0,win_name)
def hide(self):
win32gui.ShowWindow(self.hwnd, win32con.SW_MINIMIZE)
win32gui.ShowWindow(self.hwnd, win32con.SW_HIDE)
def show(self):
win32gui.ShowWindow(self.hwnd, win32con.SW_SHOW)
win32gui.ShowWindow(self.hwnd, win32con.SW_MAXIMIZE)
def get_win_name(exe):
''' Simple function that gets the window name of the process with the given name'''
info = subprocess.STARTUPINFO()
info.dwFlags |= subprocess.STARTF_USESHOWWINDOW
raw = subprocess.check_output('tasklist /v /fo csv', startupinfo=info).split('\n')[1:-1]
for proc in raw:
try:
proc = eval('[' + proc + ']')
if proc[0] == exe:
return proc[8]
except:
pass
raise ValueError('Could not find a process with name ' + exe)
Example:
hider = HideFox('firefox.exe') # Can be anything, e.q., phantomjs.exe, notepad.exe, etc.
# To hide the window
hider.hide()
# To show again
hider.show()
However, there is one problem with this solution - using send_keys method makes the window show up. You can deal with it by using JavaScript which does not show a window:
def send_keys_without_opening_window(id_of_the_element, keys)
YourWebdriver.execute_script("document.getElementById('" + id_of_the_element + "').value = '" + keys + "';")
Heap just guarantees that elements on higher levels are greater (for max-heap) or smaller (for min-heap) than elements on lower levels, whereas BST guarantees order (from "left" to "right"). If you want sorted elements, go with BST.
Linus' answer to your question is "Because C++ is a horrible language"
His evidence is anecdotal at best, but he has a point..
Being more of a low level language, you would prefer it to C++..C++ is C with added libraries and compiler support for extra features (both languages have features the other language doesn't, and implement things differently), but if you have the time and experience with C, you can benefit from extra added low level related powers...[Edited](because you get used to doing more work manually rather than benefit from some powers coming from the language/compiler itself)
Adding links:
Why are you still using C? PDF
I would google for this.. because there are plenty of commentaries on the web already
Hmm... actually i dont know how this solved it? But the following steps solved it for me:
find / -name 'config.m4'
Now look if the config.m4 is anywhere in a folder of that stuff you want to phpize. Go to that folder and run phpize directly in there.
hosts
file you wish to add to docker container;1.2.3.4 abc.tv
5.6.7.8 domain.xyz
1.3.5.7 odd.org
2.4.6.8 even.net
hosts
file into the container by adding the following line in the Dockerfile
COPY hosts /etc/hosts_extra
ENTRYPOINT
or CMD
or CRON
job then incorporate the following command line into it or at least run this inside the running container: cat /etc/hosts_extra >> etc/hosts;
Dockerfile
because the modification will be lost:RUN cat /etc/hosts_extra >> etc/hosts;
var jsonStringNoQuotes = [{"Id":"10","Name":"Matt"},{"Id":"1","Name":"Rock"}];
it will create json object. no need to parse.
jsonStringQuotes = "'" + jsonStringNoQuotes + "'";
will return '[object]'
thats why it(below) is causing error
var myData = JSON.parse(jsonStringQuotes);
String s = "<B><G>Test</G></B><C>Test1</C>";
String pattern ="\\<(.+)\\>([^\\<\\>]+)\\<\\/\\1\\>";
int count = 0;
Pattern p = Pattern.compile(pattern);
Matcher m = p.matcher(s);
while(m.find())
{
System.out.println(m.group(2));
count++;
}
just like user hcpl said but if you want to not worry about the version of the library you can do this:
dependencies {
compile(name:'mylibrary', ext:'aar')
}
as its kind of annoying to have to update the version everytime. Also it makes the not worrying about the name space easier this way.
The pickle (and gzip if the file is compressed) module need to be used
NOTE: These are already in the standard Python library. No need to install anything new
If you can't use the delay
method as Robert Harvey suggested, you can use setTimeout
.
Eg.
setTimeout(function() {$("#test").animate({"top":"-=80px"})} , 1500); // delays 1.5 sec
setTimeout(function() {$("#test").animate({"opacity":"0"})} , 1500 + 1000); // delays 1 sec after the previous one
Be aware that HttpOnly doesn't stop cross-site scripting; instead, it neutralizes one possible attack, and currently does that only on IE (FireFox exposes HttpOnly cookies in XmlHttpRequest, and Safari doesn't honor it at all). By all means, turn HttpOnly on, but don't drop even an hour of output filtering and fuzz testing in trade for it.
The easiest and quickest way is to use following url to print all environment variables
http://localhost:8080/env-vars.html/
You're getting None
because list.sort()
it operates in-place, meaning that it doesn't return anything, but modifies the list itself. You only need to call a.sort()
without assigning it to a
again.
There is a built in function sorted()
, which returns a sorted version of the list - a = sorted(a)
will do what you want as well.