Remove warnings.filterwarnings and add:
numpy.seterr(all='raise')
You need to escape it with two backslashes
\\?
See this for more details:
http://www.trans4mind.com/personal_development/JavaScript/Regular%20Expressions%20Simple%20Usage.htm
There's no operator for such usage in C, but a family of functions:
double pow (double base , double exponent);
float powf (float base , float exponent);
long double powl (long double base, long double exponent);
Note that the later two are only part of standard C since C99.
If you get a warning like:
"incompatible implicit declaration of built in function 'pow' "
That's because you forgot #include <math.h>
.
ALTER TABLE DROP FOREIGN KEY fk_name;
ALTER TABLE ADD FOREIGN KEY fk_name(fk_cols)
REFERENCES tbl_name(pk_names) ON DELETE RESTRICT;
We can use refs in another way as-
We are going to create a Parent element, it will render a <Child/>
component. As you can see, the component that will be rendered, you need to add the ref attribute and provide a name for it.
Then, the triggerChildAlert
function, located in the parent class will access the refs property of the this context (when the triggerChildAlert
function is triggered will access the child reference and it will has all the functions of the child element).
class Parent extends React.Component {
triggerChildAlert(){
this.refs.child.callChildMethod();
// to get child parent returned value-
// this.value = this.refs.child.callChildMethod();
// alert('Returned value- '+this.value);
}
render() {
return (
<div>
{/* Note that you need to give a value to the ref parameter, in this case child*/}
<Child ref="child" />
<button onClick={this.triggerChildAlert}>Click</button>
</div>
);
}
}
Now, the child component, as theoretically designed previously, will look like:
class Child extends React.Component {
callChildMethod() {
alert('Hello World');
// to return some value
// return this.state.someValue;
}
render() {
return (
<h1>Hello</h1>
);
}
}
Here is the source code-
Hope will help you !
You can get the 'outer-html' by cloning the element, adding it to an empty,'offstage' container, and reading the container's innerHTML.
This example takes an optional second parameter.
Call document.getHTML(element, true) to include the element's descendents.
document.getHTML= function(who, deep){
if(!who || !who.tagName) return '';
var txt, ax, el= document.createElement("div");
el.appendChild(who.cloneNode(false));
txt= el.innerHTML;
if(deep){
ax= txt.indexOf('>')+1;
txt= txt.substring(0, ax)+who.innerHTML+ txt.substring(ax);
}
el= null;
return txt;
}
Assuming the class variable is z, you can use:
with(df, plot(x, y, col = z))
however, it's important that z is a factor variable, as R internally stores factors as integers.
This way, 1 is 'black', 2 is 'red', 3 is 'green, ....
You can simply use jQuery UI Dialog
Example:
$(function() {_x000D_
$("#dialog").dialog();_x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<html lang="en">_x000D_
_x000D_
<head>_x000D_
<meta charset="utf-8" />_x000D_
<title>jQuery UI Dialog - Default functionality</title>_x000D_
<link rel="stylesheet" href="http://code.jquery.com/ui/1.10.3/themes/smoothness/jquery-ui.css" />_x000D_
<script src="http://code.jquery.com/ui/1.10.3/jquery-ui.js"></script>_x000D_
<link rel="stylesheet" href="/resources/demos/style.css" />_x000D_
</head>_x000D_
_x000D_
<body>_x000D_
<div id="dialog" title="Basic dialog">_x000D_
<p>This is the default dialog which is useful for displaying information. The dialog window can be moved, resized and closed with the 'x' icon.</p>_x000D_
</div>_x000D_
</body>_x000D_
</html>
_x000D_
Unfortunately, most of the articles on state machines are written for C++ or other languages that have direct support for polymorphism as it's nice to model the states in an FSM implementation as classes that derive from an abstract state class.
However, it's pretty easy to implement state machines in C using either switch statements to dispatch events to states (for simple FSMs, they pretty much code right up) or using tables to map events to state transitions.
There are a couple of simple, but decent articles on a basic framework for state machines in C here:
Edit: Site "under maintenance", web archive links:
switch
statement-based state machines often use a set of macros to 'hide' the mechanics of the switch
statement (or use a set of if
/then
/else
statements instead of a switch
) and make what amounts to a "FSM language" for describing the state machine in C source. I personally prefer the table-based approach, but these certainly have merit, are widely used, and can be effective especially for simpler FSMs.
One such framework is outlined by Steve Rabin in "Game Programming Gems" Chapter 3.0 (Designing a General Robust AI Engine).
A similar set of macros is discussed here:
If you're also interested in C++ state machine implementations there's a lot more that can be found. I'll post pointers if you're interested.
Select 'YOU WILL SEE ME' as ANSWER from dual
where exists (select 1 from dual where 1 = 1);
Select 'YOU CAN NOT SEE ME' as ANSWER from dual
where exists (select 1 from dual where 1 = 0);
Select 'YOU WILL SEE ME, TOO' as ANSWER from dual
where not exists (select 1 from dual where 1 = 0);
I think error is not coming from the specified line but from the first 3 lines. Try this instead :
node {
stage("first") {
def foo = "foo"
sh "echo ${foo}"
}
}
I think you had some extra lines that are not valid...
From declaractive pipeline model documentation, it seems that you have to use an environment
declaration block to declare your variables, e.g.:
pipeline {
environment {
FOO = "foo"
}
agent none
stages {
stage("first") {
sh "echo ${FOO}"
}
}
}
Try using jQuery for the event listener, it will then work in Firefox.
myAudio = new Audio('someSound.ogg');
$(myAudio).bind('ended', function() {
myAudio.currentTime = 0;
myAudio.play();
});
myAudio.play();
Something like that.
{=FIND("cell I want to search","list of words I want to search for")}
{=SUM(FIND($A$1:$A$100&"|";A3))}
this ensures spreadsheet will compare strings like "cellvlaue|" againts "pattern1|", "pattern2|" etc. which sorts out conflicts like pattern1="newly added", pattern2="added" (sum of all cells matching "added" would be too high, including the target values for cells matching "newly added", which would be a logical error)Another option is to create a random mask if you just want to down-sample your data by a certain factor. Say I want to down-sample to 25% of my original data set, which is currently held in the array data_arr
:
# generate random boolean mask the length of data
# use p 0.75 for False and 0.25 for True
mask = numpy.random.choice([False, True], len(data_arr), p=[0.75, 0.25])
Now you can call data_arr[mask]
and return ~25% of the rows, randomly sampled.
To avoid deprecated opts
and theme_rect
use:
myplot + theme(panel.background = element_rect(fill='green', colour='red'))
To define your own custom theme, based on theme_gray but with some of your changes and a few added extras including control of gridline colour/size (more options available to play with at ggplot2.org):
theme_jack <- function (base_size = 12, base_family = "") {
theme_gray(base_size = base_size, base_family = base_family) %+replace%
theme(
axis.text = element_text(colour = "white"),
axis.title.x = element_text(colour = "pink", size=rel(3)),
axis.title.y = element_text(colour = "blue", angle=45),
panel.background = element_rect(fill="green"),
panel.grid.minor.y = element_line(size=3),
panel.grid.major = element_line(colour = "orange"),
plot.background = element_rect(fill="red")
)
}
To make your custom theme the default when ggplot is called in future, without masking:
theme_set(theme_jack())
If you want to change an element of the currently set theme:
theme_update(plot.background = element_rect(fill="pink"), axis.title.x = element_text(colour = "red"))
To store the current default theme as an object:
theme_pink <- theme_get()
Note that theme_pink
is a list whereas theme_jack
was a function. So to return the theme to theme_jack use theme_set(theme_jack())
whereas to return to theme_pink use theme_set(theme_pink)
.
You can replace theme_gray
by theme_bw
in the definition of theme_jack
if you prefer. For your custom theme to resemble theme_bw
but with all gridlines (x, y, major and minor) turned off:
theme_nogrid <- function (base_size = 12, base_family = "") {
theme_bw(base_size = base_size, base_family = base_family) %+replace%
theme(
panel.grid = element_blank()
)
}
Finally a more radical theme useful when plotting choropleths or other maps in ggplot, based on discussion here but updated to avoid deprecation. The aim here is to remove the gray background, and any other features that might distract from the map.
theme_map <- function (base_size = 12, base_family = "") {
theme_gray(base_size = base_size, base_family = base_family) %+replace%
theme(
axis.line=element_blank(),
axis.text.x=element_blank(),
axis.text.y=element_blank(),
axis.ticks=element_blank(),
axis.ticks.length=unit(0.3, "lines"),
axis.ticks.margin=unit(0.5, "lines"),
axis.title.x=element_blank(),
axis.title.y=element_blank(),
legend.background=element_rect(fill="white", colour=NA),
legend.key=element_rect(colour="white"),
legend.key.size=unit(1.2, "lines"),
legend.position="right",
legend.text=element_text(size=rel(0.8)),
legend.title=element_text(size=rel(0.8), face="bold", hjust=0),
panel.background=element_blank(),
panel.border=element_blank(),
panel.grid.major=element_blank(),
panel.grid.minor=element_blank(),
panel.margin=unit(0, "lines"),
plot.background=element_blank(),
plot.margin=unit(c(1, 1, 0.5, 0.5), "lines"),
plot.title=element_text(size=rel(1.2)),
strip.background=element_rect(fill="grey90", colour="grey50"),
strip.text.x=element_text(size=rel(0.8)),
strip.text.y=element_text(size=rel(0.8), angle=-90)
)
}
%d
prints an integer: it will print the ascii representation of your character. What you need is %c
:
printf("%c", ch);
printf("%d", '\0');
prints the ascii representation of '\0'
, which is 0 (by escaping 0 you tell the compiler to use the ascii value 0.
printf("%d", sizeof('\n'));
prints 4 because a character literal is an int
, in C, and not a char
.
Java doesn't have direct equivalent of C# language feature called async/await, however there's a different approach to the problem that async/await tries to solve. It's called project Loom, which will provide virtual threads for high-throughput concurrency. It will be available in some future version of OpenJDK.
This approach also solves "colored function problem" that async/await has.
Similar feature can be also found in Golang (goroutines).
A note for using Docker Windows containers after I had to look for this problem for a long time!
Condiditions:
Problem:
Solution as partially discripted here:
docker run -d -p 1433:1433 -e sa_password=<STRONG_PASSWORD> -e ACCEPT_EULA=Y microsoft/mssql-server-windows-developer
docker exec -it <CONTAINERID> cmd.exe
mkdir DirForMount
docker container stop <CONTAINERID>
docker commit <CONTAINERID> <NEWIMAGENAME>
docker container rm <CONTAINERID>
docker run -d -p 1433:1433 -e sa_password=<STRONG_PASSWORD> -e ACCEPT_EULA=Y -v C:\DirToMount:C:\DirForMount <NEWIMAGENAME>
After this i solved this problem on docker windows containers.
Try this:
<!-- first page -->
<?php
session_start();
session_register('myvar');
$_SESSION['myvar'] == 'myvalue';
?>
<!-- second page -->
<?php
session_start();
echo("1");
if(session_is_registered('myvar'))
{
echo("2");
if($_SESSION['myvar'] == 'myvalue')
{
echo("3");
exit;
}
}
?>
Use this bash script:
#!/bin/bash
for VARIABLE in *.jar
do
jar -tf $VARIABLE |grep "\.class"|awk -v arch=$VARIABLE '{print arch ":" $4}'|sed 's/\//./g'|sed 's/\.\.//g'|sed 's/\.class//g'
done
this will list the classes inside jars in your directory in the form:
file1.jar:fullyqualifiedclassName
file1.jar:fullyqualifiedclassName
file1.jar:fullyqualifiedclassName
file1.jar:fullyqualifiedclassName
file2.jar:fullyqualifiedclassName
file2.jar:fullyqualifiedclassName
file2.jar:fullyqualifiedclassName
Sample output:
commons-io.jar:org.apache.commons.io.ByteOrderMark
commons-io.jar:org.apache.commons.io.Charsets
commons-io.jar:org.apache.commons.io.comparator.AbstractFileComparator
commons-io.jar:org.apache.commons.io.comparator.CompositeFileComparator
commons-io.jar:org.apache.commons.io.comparator.DefaultFileComparator
commons-io.jar:org.apache.commons.io.comparator.DirectoryFileComparator
commons-io.jar:org.apache.commons.io.comparator.ExtensionFileComparator
commons-io.jar:org.apache.commons.io.comparator.LastModifiedFileComparator
In windows you can use powershell:
Get-ChildItem -File -Filter *.jar |
ForEach-Object{
$filename = $_.Name
Write-Host $filename
$classes = jar -tf $_.Name |Select-String -Pattern '.class' -CaseSensitive -SimpleMatch
ForEach($line in $classes) {
write-host $filename":"(($line -replace "\.class", "") -replace "/", ".")
}
}
I tried the code by @alex-martelli but found some discrepancies
python -mtimeit -s "xs=range(123456)" "map(hex, xs)"
1000000 loops, best of 5: 218 nsec per loop
python -mtimeit -s "xs=range(123456)" "[hex(x) for x in xs]"
10 loops, best of 5: 19.4 msec per loop
map takes the same amount of time even for very large ranges while using list comprehension takes a lot of time as is evident from my code. So apart from being considered "unpythonic", I have not faced any performance issues relating to usage of map.
You can also use nuget: https://www.nuget.org/packages/System.Management.Automation/ It is maybe a better option.
Each version has some improvements in certain technologies. For users the biggest difference is whether or not to execute certain plugins, because some were made only for a particular version of Eclipse.
$("[id$=btnSubmit]").click(function () {
debugger
var SDate = $("[id$=txtStartDate]").val().split('-');
var Smonth = SDate[0];
var Sday = SDate[1];
var Syear = SDate[2];
// alert(Syear); alert(Sday); alert(Smonth);
var EDate = $("[id$=txtEndDate]").val().split('-');
var Emonth = EDate[0];
var Eday = EDate[1];
var Eyear = EDate[2];
var y = parseInt(Eyear) - parseInt(Syear);
var m, d;
if ((parseInt(Emonth) - parseInt(Smonth)) > 0) {
m = parseInt(Emonth) - parseInt(Smonth);
}
else {
m = parseInt(Emonth) + 12 - parseInt(Smonth);
y = y - 1;
}
if ((parseInt(Eday) - parseInt(Sday)) > 0) {
d = parseInt(Eday) - parseInt(Sday);
}
else {
d = parseInt(Eday) + 30 - parseInt(Sday);
m = m - 1;
}
// alert(y + " " + m + " " + d);
$("[id$=lblAge]").text("your age is " + y + "years " + m + "month " + d + "days");
return false;
});
I have Notepad++ v6.8.8
Find: [([a-zA-Z])]
Replace: [\'\1\']
Will produce: $array[XYZ] => $array['XYZ']
a cheap and nasty would be:
jQuery("#myDiv").html().replace("<br>", "\n").replace("<br />", "\n")
EDIT
jQuery("#myTextArea").val(
jQuery("#myDiv").html()
.replace(/\<br\>/g, "\n")
.replace(/\<br \/\>/g, "\n")
);
Also created a jsfiddle if needed: http://jsfiddle.net/2D3xx/
I have virtually no knowledge of C#, but I suspect that either switch was simply taken as it occurs in other languages without thinking about making it more general or the developer decided that extending it was not worth it.
Strictly speaking you are absolutely right that there is no reason to put these restrictions on it. One might suspect that the reason is that for the allowed cases the implementation is very efficient (as suggested by Brian Ensink (44921)), but I doubt the implementation is very efficient (w.r.t. if-statements) if I use integers and some random cases (e.g. 345, -4574 and 1234203). And in any case, what is the harm in allowing it for everything (or at least more) and saying that it is only efficient for specific cases (such as (almost) consecutive numbers).
I can, however, imagine that one might want to exclude types because of reasons such as the one given by lomaxx (44918).
Edit: @Henk (44970): If Strings are maximally shared, strings with equal content will be pointers to the same memory location as well. Then, if you can make sure that the strings used in the cases are stored consecutively in memory, you can very efficiently implement the switch (i.e. with execution in the order of 2 compares, an addition and two jumps).
I had the same problem, and solved by simply doing this at the command line:
mongodump -d databasename
echo 'db.dropDatabase()' | mongo databasename
mongorestore dump/databasename
Node Reverse(Node head) {
Node n,rev;
rev = new Node();
rev.data = head.data;
rev.next = null;
while(head.next != null){
n = new Node();
head = head.next;
n.data = head.data;
n.next = rev;
rev = n;
n=null;
}
return rev;
}
Use above function to reverse single linked list.
I demonstrated a parallel byte level random access approach here in this other question:
Getting number of lines in a text file without readlines
Some of the answers already provided are nice and concise. I like some of them. But it really depends what you want to do with the data that's in the file. In my case I just wanted to count lines, as fast as possible on big text files. My code can be modified to do other things too of course, like any code.
I would recommend to use date->diff function, as in example below:
$dStart = new DateTime('2012-07-26');
$dEnd = new DateTime('2012-08-26');
$dDiff = $dStart->diff($dEnd);
echo $dDiff->format('%r%a'); // use for point out relation: smaller/greater
First off, always keep this in mind when looking for text in the DOM.
This issue will make you pay attention to the structure of your XML / HTML.
In this pure JavaScript example, I account for the possibility of multiple text nodes that could be interleaved with other kinds of nodes. However, initially, I do not pass judgment on whitespace, leaving that filtering task to other code.
In this version, I pass a NodeList
in from the calling / client code.
/**
* Gets strings from text nodes. Minimalist. Non-robust. Pre-test loop version.
* Generic, cross platform solution. No string filtering or conditioning.
*
* @author Anthony Rutledge
* @param nodeList The child nodes of a Node, as in node.childNodes.
* @param target A positive whole number >= 1
* @return String The text you targeted.
*/
function getText(nodeList, target)
{
var trueTarget = target - 1,
length = nodeList.length; // Because you may have many child nodes.
for (var i = 0; i < length; i++) {
if ((nodeList[i].nodeType === Node.TEXT_NODE) && (i === trueTarget)) {
return nodeList[i].nodeValue; // Done! No need to keep going.
}
}
return null;
}
Of course, by testing node.hasChildNodes()
first, there would be no need to use a pre-test for
loop.
/**
* Gets strings from text nodes. Minimalist. Non-robust. Post-test loop version.
* Generic, cross platform solution. No string filtering or conditioning.
*
* @author Anthony Rutledge
* @param nodeList The child nodes of a Node, as in node.childNodes.
* @param target A positive whole number >= 1
* @return String The text you targeted.
*/
function getText(nodeList, target)
{
var trueTarget = target - 1,
length = nodeList.length,
i = 0;
do {
if ((nodeList[i].nodeType === Node.TEXT_NODE) && (i === trueTarget)) {
return nodeList[i].nodeValue; // Done! No need to keep going.
}
i++;
} while (i < length);
return null;
}
Here the function getTextById()
uses two helper functions: getStringsFromChildren()
and filterWhitespaceLines()
.
getStringsFromChildren()
/**
* Collects strings from child text nodes.
* Generic, cross platform solution. No string filtering or conditioning.
*
* @author Anthony Rutledge
* @version 7.0
* @param parentNode An instance of the Node interface, such as an Element. object.
* @return Array of strings, or null.
* @throws TypeError if the parentNode is not a Node object.
*/
function getStringsFromChildren(parentNode)
{
var strings = [],
nodeList,
length,
i = 0;
if (!parentNode instanceof Node) {
throw new TypeError("The parentNode parameter expects an instance of a Node.");
}
if (!parentNode.hasChildNodes()) {
return null; // We are done. Node may resemble <element></element>
}
nodeList = parentNode.childNodes;
length = nodeList.length;
do {
if ((nodeList[i].nodeType === Node.TEXT_NODE)) {
strings.push(nodeList[i].nodeValue);
}
i++;
} while (i < length);
if (strings.length > 0) {
return strings;
}
return null;
}
filterWhitespaceLines()
/**
* Filters an array of strings to remove whitespace lines.
* Generic, cross platform solution.
*
* @author Anthony Rutledge
* @version 6.0
* @param textArray a String associated with the id attribute of an Element.
* @return Array of strings that are not lines of whitespace, or null.
* @throws TypeError if the textArray param is not of type Array.
*/
function filterWhitespaceLines(textArray)
{
var filteredArray = [],
whitespaceLine = /(?:^\s+$)/; // Non-capturing Regular Expression.
if (!textArray instanceof Array) {
throw new TypeError("The textArray parameter expects an instance of a Array.");
}
for (var i = 0; i < textArray.length; i++) {
if (!whitespaceLine.test(textArray[i])) { // If it is not a line of whitespace.
filteredArray.push(textArray[i].trim()); // Trimming here is fine.
}
}
if (filteredArray.length > 0) {
return filteredArray ; // Leave selecting and joining strings for a specific implementation.
}
return null; // No text to return.
}
getTextById()
/**
* Gets strings from text nodes. Robust.
* Generic, cross platform solution.
*
* @author Anthony Rutledge
* @version 6.0
* @param id A String associated with the id property of an Element.
* @return Array of strings, or null.
* @throws TypeError if the id param is not of type String.
* @throws TypeError if the id param cannot be used to find a node by id.
*/
function getTextById(id)
{
var textArray = null; // The hopeful output.
var idDatatype = typeof id; // Only used in an TypeError message.
var node; // The parent node being examined.
try {
if (idDatatype !== "string") {
throw new TypeError("The id argument must be of type String! Got " + idDatatype);
}
node = document.getElementById(id);
if (node === null) {
throw new TypeError("No element found with the id: " + id);
}
textArray = getStringsFromChildren(node);
if (textArray === null) {
return null; // No text nodes found. Example: <element></element>
}
textArray = filterWhitespaceLines(textArray);
if (textArray.length > 0) {
return textArray; // Leave selecting and joining strings for a specific implementation.
}
} catch (e) {
console.log(e.message);
}
return null; // No text to return.
}
Next, the return value (Array, or null) is sent to the client code where it should be handled. Hopefully, the array should have string elements of real text, not lines of whitespace.
Empty strings (""
) are not returned because you need a text node to properly indicate the presence of valid text. Returning (""
) may give the false impression that a text node exists, leading someone to assume that they can alter the text by changing the value of .nodeValue
. This is false, because a text node does not exist in the case of an empty string.
Example 1:
<p id="bio"></p> <!-- There is no text node here. Return null. -->
Example 2:
<p id="bio">
</p> <!-- There are at least two text nodes ("\n"), here. -->
The problem comes in when you want to make your HTML easy to read by spacing it out. Now, even though there is no human readable valid text, there are still text nodes with newline ("\n"
) characters in their .nodeValue
properties.
Humans see examples one and two as functionally equivalent--empty elements waiting to be filled. The DOM is different than human reasoning. This is why the getStringsFromChildren()
function must determine if text nodes exist and gather the .nodeValue
values into an array.
for (var i = 0; i < length; i++) {
if (nodeList[i].nodeType === Node.TEXT_NODE) {
textNodes.push(nodeList[i].nodeValue);
}
}
In example two, two text nodes do exist and getStringFromChildren()
will return the .nodeValue
of both of them ("\n"
). However, filterWhitespaceLines()
uses a regular expression to filter out lines of pure whitespace characters.
Is returning null
instead of newline ("\n"
) characters a form of lying to the client / calling code? In human terms, no. In DOM terms, yes. However, the issue here is getting text, not editing it. There is no human text to return to the calling code.
One can never know how many newline characters might appear in someone's HTML. Creating a counter that looks for the "second" newline character is unreliable. It might not exist.
Of course, further down the line, the issue of editing text in an empty <p></p>
element with extra whitespace (example 2) might mean destroying (maybe, skipping) all but one text node between a paragraph's tags to ensure the element contains precisely what it is supposed to display.
Regardless, except for cases where you are doing something extraordinary, you will need a way to determine which text node's .nodeValue
property has the true, human readable text that you want to edit. filterWhitespaceLines
gets us half way there.
var whitespaceLine = /(?:^\s+$)/; // Non-capturing Regular Expression.
for (var i = 0; i < filteredTextArray.length; i++) {
if (!whitespaceLine.test(textArray[i])) { // If it is not a line of whitespace.
filteredTextArray.push(textArray[i].trim()); // Trimming here is fine.
}
}
At this point you may have output that looks like this:
["Dealing with text nodes is fun.", "Some people just use jQuery."]
There is no guarantee that these two strings are adjacent to each other in the DOM, so joining them with .join()
might make an unnatural composite. Instead, in the code that calls getTextById()
, you need to chose which string you want to work with.
Test the output.
try {
var strings = getTextById("bio");
if (strings === null) {
// Do something.
} else if (strings.length === 1) {
// Do something with strings[0]
} else { // Could be another else if
// Do something. It all depends on the context.
}
} catch (e) {
console.log(e.message);
}
One could add .trim()
inside of getStringsFromChildren()
to get rid of leading and trailing whitespace (or to turn a bunch of spaces into a zero length string (""
), but how can you know a priori what every application may need to have happen to the text (string) once it is found? You don't, so leave that to a specific implementation, and let getStringsFromChildren()
be generic.
There may be times when this level of specificity (the target
and such) is not required. That is great. Use a simple solution in those cases. However, a generalized algorithm enables you to accommodate simple and complex situations.
Get<S, T>
takes two type arguments. When you call service.Get(new Signatur());
how does the compiler know what T
is? You'll have to pass it explicitly or change something else about your type hierarchies. Passing it explicitly would look like:
service.Get<Signatur, bool>(new Signatur());
Use a column to let each date be shown as month number; another column for day number:
A B C D
----- ----- ----------- --------
1 8 6 8/6/2010 12.70
2 8 7 8/7/2010 10.50
3 8 7 8/7/2010 7.10
4 8 9 8/9/2010 10.50
5 8 10 8/10/2010 15.00
The formula for A1
is =Month(C1)
The formula for B1
is =Day(C1)
For Month sums, put the month number next to each month:
E F G
----- ----- -------------
1 7 July $1,000,010
2 8 Aug $1,200,300
The formula for G1
is =SumIf($A$1:$A$100, E1, $D$1:$D$100)
. This is a portable formula; just copy it down.
Total for the day will be be a bit more complicated, but you can probably see how to do it.
try {
ObjectMapper mapper = new ObjectMapper();
JsonFactory f = new JsonFactory();
List<User> lstUser = null;
JsonParser jp = f.createJsonParser(new File("C:\\maven\\user.json"));
TypeReference<List<User>> tRef = new TypeReference<List<User>>() {};
lstUser = mapper.readValue(jp, tRef);
for (User user : lstUser) {
System.out.println(user.toString());
}
} catch (JsonGenerationException e) {
e.printStackTrace();
} catch (JsonMappingException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
The problem happened because I was trying to bind a HTML element before it was created.
My script was loaded on top of the HTML and it needs to be loaded at the bottom of my HTML code.
I would one-up'd mightymada's answer if I had the reputation - I just implemented an asp.net HTML to PDF solution using Pechkin. results are wonderful.
There is a nuget package for Pechkin, but as the above poster mentions in his blog (http://codeutil.wordpress.com/2013/09/16/convert-html-to-pdf/ - I hope she doesn't mind me reposting it), there's a memory leak that's been fixed in this branch:
https://github.com/tuespetre/Pechkin
The above blog has specific instructions for how to include this package (it's a 32 bit dll and requires .net4). here is my code. The incoming HTML is actually assembled via HTML Agility pack (I'm automating invoice generations):
public static byte[] PechkinPdf(string html)
{
//Transform the HTML into PDF
var pechkin = Factory.Create(new GlobalConfig());
var pdf = pechkin.Convert(new ObjectConfig()
.SetLoadImages(true).SetZoomFactor(1.5)
.SetPrintBackground(true)
.SetScreenMediaType(true)
.SetCreateExternalLinks(true), html);
//Return the PDF file
return pdf;
}
again, thank you mightymada - your answer is fantastic.
One other thing to look at that solved it for me :
In an Eclipse / Maven project, I had Java classes in src/test/java
in which I was using the this.getClass().getResource("someFile.ext");
pattern to look for resources in src/test/resources
where the resource file was in the same package location in the resources source folder as the test class was in the the test source folder. It still failed to locate them.
Right click on the src/test/resources
source folder, Build Path, then "configure inclusion / exclusion filters"; I added a new inclusion filter of **/*.ext
to make sure my files weren't getting scrubbed; my tests now can find their resource files.
changing the complie SDk version to API level 21 fixed it for me. then i ran into others issues of deploying the app to my device. i changed the minimun API level to target to what i want and that fixed it.
incase someone is experiencing this again.
DP size of any device is (actual resolution / density conversion factor).
Density conversion factor for density buckets are as follows:
ldpi: 0.75
mdpi: 1.0 (base density)
hdpi: 1.5
xhdpi: 2.0
xxhdpi: 3.0
xxxhdpi: 4.0
Examples of resolution/density conversion to DP:
ldpi device of 240 X 320 px will be of 320 X 426.66 DP. 240 / 0.75 = 320 dp 320 / 0.75 = 426.66 dp
xxhdpi device of 1080 x 1920 pixels (Samsung S4, S5) will be of 360 X 640 dp. 1080 / 3 = 360 dp 1920 / 3 = 640 dp
This image show more:
For more details about DIP read here.
If() is the closest equivalent but beware of implicit conversions going on if you have set "Option Strict off"
For example, if your not careful you may be tempted to try something like:
Dim foo As Integer? = If(someTrueExpression, Nothing, 2)
Will give "foo" a value of 0!
I think the '?' operator equivalent in C# would instead fail compilation
You have an orphaned user and this can't be remapped with ALTER USER (yet) becauses there is no login to map to. So, you need run CREATE LOGIN first.
If the database level user is
Then run ALTER USER
Edit, after comments and updates
The sid from sys.database_principals is for a Windows login.
So trying to create and re-map to a SQL Login will fail
Run this to get the Windows login
SELECT SUSER_SNAME(0x0105000000000009030000001139F53436663A4CA5B9D5D067A02390)
I've used something like this before which addresses @scunliffes concern. It finds all instances of items with a class of (in this case .button), and assigns an ID and appends its index to the id name:
$(".button").attr('id', function (index) {_x000D_
return "button-" + index;_x000D_
});
_x000D_
So let's say you have 3 items with the class name of .button on a page. The result would be adding a unique ID to all of them (in addition to their class of "button").
In this case, #button-0, #button-1, #button-2, respectively. This can come in very handy. Simply replace ".button" in the first line with whatever class you want to target, and replace "button" in the return statement with whatever you'd like your unique ID to be. Hope this helps!
It would seem to me that though you have ODP with the Oracle Istant Client, the ODP may be trying to use the actual Oracle Client instead. Do you have a standard Oracle client installed on the machine as well? I recall Oracle being quite picky about when it came to multiple clients on the same machine.
Use get_the_category()
like this:
<?php
foreach((get_the_category()) as $category) {
echo $category->cat_name . ' ';
}
?>
It returns a list because a post can have more than one category.
The documentation also explains how to do this from outside the loop.
Yes, it is possible.
It is possible to have a formula returning a trueblank if a condition is met. It passes the test of the ISBLANK
formula. The only inconvenience is that when the condition is met, the formula will evaporate, and you will have to retype it. You can design a formula immune to self-destruction by making it return the result to the adjacent cell. Yes, it is also possible. I refer you to this solution at the end of my answer.
All you need is to set up a named range, say GetTrueBlank
, and you will be able to use the following pattern just like in your question:
=IF(A1 = "Hello world", GetTrueBlank, A1)
Step 1. Put this code in Module of VBA.
Function Delete_UDF(rng)
ThisWorkbook.Application.Volatile
rng.Value = ""
End Function
Step 2. In Sheet1
in A1
cell add named range GetTrueBlank
with the following formula:
=EVALUATE("Delete_UDF("&CELL("address",Sheet1!A1)&")")
That's it. There are no further steps. Just use self-annihilating formula. Put in the cell, say B2
, the following formula:
=IF(A2=0,GetTrueBlank,A2)
The above formula in B2
will evaluate to trueblank, if you type 0 in A2
.
You can download a demonstration file here.
In the example above, evaluating the formula to trueblank results in an empty cell. Checking the cell with ISBLANK
formula results positively in TRUE. This is hara-kiri. The formula disappears from the cell when a condition is met. The goal is reached, although you probably might want the formula not to disappear.
You may modify the formula to return the result in the adjacent cell so that the formula will not kill itself. See how to get UDF result in the adjacent cell.
I have come across the examples of getting a trueblank as a formula result revealed by The FrankensTeam here: https://sites.google.com/site/e90e50/excel-formula-to-change-the-value-of-another-cell
1 - add &enablejsapi=1
to IFRAME SRC
2 - jQuery func:
$('iframe#your_video')[0].contentWindow.postMessage('{"event":"command","func":"playVideo","args":""}', '*');
Works fine
I had the same problem to show an user detail from my application.
You can do this:
<Link to={'/ideas/'+this.props.testvalue }>Create Idea</Link>
or
<Link to="ideas/hello">Create Idea</Link>
and
<Route name="ideas/:value" handler={CreateIdeaView} />
to get this via this.props.match.params.value
at your CreateIdeaView class.
You can see this video that helped me a lot: https://www.youtube.com/watch?v=ZBxMljq9GSE
$(".overdue").each( function() {
alert("Your book is overdue.");
});
Note that ".addClass()" works because addClass is a function defined on the jQuery object. You can't just plop any old function on the end of a selector and expect it to work.
Also, probably a bad idea to bombard the user with n popups (where n = the number of books overdue).
Perhaps use the size function:
alert( "You have " + $(".overdue").size() + " books overdue." );
Python's built-in itertools
module actually has a groupby
function , but for that the elements to be grouped must first be sorted such that the elements to be grouped are contiguous in the list:
from operator import itemgetter
sortkeyfn = itemgetter(1)
input = [('11013331', 'KAT'), ('9085267', 'NOT'), ('5238761', 'ETH'),
('5349618', 'ETH'), ('11788544', 'NOT'), ('962142', 'ETH'), ('7795297', 'ETH'),
('7341464', 'ETH'), ('9843236', 'KAT'), ('5594916', 'ETH'), ('1550003', 'ETH')]
input.sort(key=sortkeyfn)
Now input looks like:
[('5238761', 'ETH'), ('5349618', 'ETH'), ('962142', 'ETH'), ('7795297', 'ETH'),
('7341464', 'ETH'), ('5594916', 'ETH'), ('1550003', 'ETH'), ('11013331', 'KAT'),
('9843236', 'KAT'), ('9085267', 'NOT'), ('11788544', 'NOT')]
groupby
returns a sequence of 2-tuples, of the form (key, values_iterator)
. What we want is to turn this into a list of dicts where the 'type' is the key, and 'items' is a list of the 0'th elements of the tuples returned by the values_iterator. Like this:
from itertools import groupby
result = []
for key,valuesiter in groupby(input, key=sortkeyfn):
result.append(dict(type=key, items=list(v[0] for v in valuesiter)))
Now result
contains your desired dict, as stated in your question.
You might consider, though, just making a single dict out of this, keyed by type, and each value containing the list of values. In your current form, to find the values for a particular type, you'll have to iterate over the list to find the dict containing the matching 'type' key, and then get the 'items' element from it. If you use a single dict instead of a list of 1-item dicts, you can find the items for a particular type with a single keyed lookup into the master dict. Using groupby
, this would look like:
result = {}
for key,valuesiter in groupby(input, key=sortkeyfn):
result[key] = list(v[0] for v in valuesiter)
result
now contains this dict (this is similar to the intermediate res
defaultdict in @KennyTM's answer):
{'NOT': ['9085267', '11788544'],
'ETH': ['5238761', '5349618', '962142', '7795297', '7341464', '5594916', '1550003'],
'KAT': ['11013331', '9843236']}
(If you want to reduce this to a one-liner, you can:
result = dict((key,list(v[0] for v in valuesiter)
for key,valuesiter in groupby(input, key=sortkeyfn))
or using the newfangled dict-comprehension form:
result = {key:list(v[0] for v in valuesiter)
for key,valuesiter in groupby(input, key=sortkeyfn)}
Prior to C++11, you cannot initialise an array using type[]. However the latest c++11 provides(unifies) the initialisation, so you can do it in this way:
string* pStr = new string[3] { "hi", "there"};
See http://www2.research.att.com/~bs/C++0xFAQ.html#uniform-init
row_count = sum(1 for line in open(filename))
worked for me.
Note : sum(1 for line in csv.reader(filename))
seems to calculate the length of first line
In my situation, I have a "model", consist of several String parameters, with the exception of one: it is byte array byte[]
.
Some code snippet:
String response = args[0].toString();
Gson gson = new Gson();
BaseModel responseModel = gson.fromJson(response, BaseModel.class);
The last line above is when the
java.lang.IllegalStateException: Expected BEGIN_OBJECT but was STRING at line 1 column
is triggered. Searching through the SO, I realised I need to have some form of Adapter
to convert my BaseModel
to and fro a JsonObject. Having mixed of String
and byte[]
in a model does complicate thing. Apparently, Gson
don't really like the situation.
I end up making an Adapter
to ensure byte[]
is converted to Base64
format. Here is my Adapter
class:
public class ByteArrayToBase64Adapter implements JsonSerializer<byte[]>, JsonDeserializer<byte[]> {
@Override
public byte[] deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException {
return Base64.decode(json.getAsString(), Base64.NO_WRAP);
}
@Override
public JsonElement serialize(byte[] src, Type typeOfSrc, JsonSerializationContext context) {
return new JsonPrimitive(Base64.encodeToString(src, Base64.NO_WRAP));
}
}
To convert JSONObject to model, I used the following:
Gson customGson = new GsonBuilder().registerTypeHierarchyAdapter(byte[].class, new ByteArrayToBase64Adapter()).create();
BaseModel responseModel = customGson.fromJson(response, BaseModel.class);
Similarly, to convert the model to JSONObject, I used the following:
Gson customGson = new GsonBuilder().registerTypeHierarchyAdapter(byte[].class, new ByteArrayToBase64Adapter()).create();
String responseJSon = customGson.toJson(response);
What the code is doing is basically to push the intended class/object
(in this case, byte[]
class) through the Adapter
whenever it is encountered during the convertion to/fro JSONObject.
Update energydata set energydata.kWh = temp.kWh
where energydata.webmeterID = (select webmeterID from temp_energydata as temp)
Try with new_sandbox
only
os.path.join('/home/build/test/sandboxes/', todaystr, 'new_sandbox')
Andrew's answer is good.
And just to help you out a bit more, here's how you use multiple formatting in one string
"Hello %s, my name is %s" % ('john', 'mike') # Hello john, my name is mike".
If you are using ints instead of string, use %d instead of %s.
"My name is %s and i'm %d" % ('john', 12) #My name is john and i'm 12
It took me a couple hours to figure this out but I finally got it to work using CNTLM and afterwards got it to work with just a pip config file. Here is how I got it work with the pip config file...
Solution:
1. In Windows navigate to your user profile directory (Ex. C:\Users\Sync) and create a folder named "pip"
2. Create a file named "pip.ini" in this directory (Ex. C:\Users\Sync\pip\pip.ini) and enter the following into it:
[global]
trusted-host = pypi.python.org
pypi.org
files.pythonhosted.org
proxy = http://[domain name]%5C[username]:[password]@[proxy address]:[proxy port]
Replace [domain name], [username], [password], [proxy address] and [proxy port] with your own information.
Note, if your [domain name], [username] or [password] has special characters, you have to percent-encode | encode them.
3. At this point I was able to run "pip install" without any issues.
Hopefully this works for others too!
P.S.: This may pose a security concern because of having your password stored in plain text. If this is an issue, consider setting up CNTLM using this article (allows using hashed password instead of plain text). Afterwards set proxy = 127.0.0.1:3128
in the "pip.ini" file mentioned above.
No need to complicate things. With Bootstrap 4, you can simply align items horizontally inside a column using the margin auto class my-auto
<div class="col-md-6 my-auto">
<h3>Lorem ipsum.</h3>
</div>
I had the same issue.
just removed all my worskspace:
C:\Users\<name>\.<eclipse similar name>
If you are working with Angular router, the RouterLinkActive directive can be used really elegantly:
<ul class="navbar-nav">
<li class="nav-item"><a class="nav-link" routerLink="home" routerLinkActive="active">Home</a></li>
<li class="nav-item"><a class="nav-link" routerLink="gallery" routerLinkActive="active">Gallery</a></li>
<li class="nav-item"><a class="nav-link" routerLink="pricing" routerLinkActive="active">Prices</a></li>
<li class="nav-item"><a class="nav-link" routerLink="contact" routerLinkActive="active">Contact</a></li>
</ul>
Well as simple, the answer according to me will be
first = list(prices)[0]
converting the dictionary to list will output the keys and we will select the first key from the list.
What you are looking for is this:
SHOW VARIABLES;
You can modify it further like any query:
SHOW VARIABLES LIKE '%max%';
Nothing worked for me. I changed SDK path to new SDK location and reinstalled SDK.Its working perfectly.
To fix the issue you can type below command:
'npm -g update'
How about:
df <- data.frame(matrix(ncol = 3, nrow = 0))
x <- c("name", "age", "gender")
colnames(df) <- x
To do all these operations in one-liner:
setNames(data.frame(matrix(ncol = 3, nrow = 0)), c("name", "age", "gender"))
#[1] name age gender
#<0 rows> (or 0-length row.names)
Or
data.frame(matrix(ncol=3,nrow=0, dimnames=list(NULL, c("name", "age", "gender"))))
This query generates a list of dates 4000 days in the future and 5000 in the past as of today (inspired on http://blogs.x2line.com/al/articles/207.aspx):
SELECT * FROM (SELECT
(CONVERT(SMALLDATETIME, CONVERT(CHAR,GETDATE() ,103)) + 4000 -
n4.num * 1000 -
n3.num * 100 -
n2.num * 10 -
n1.num) AS Date,
year(CONVERT(SMALLDATETIME, CONVERT(CHAR,GETDATE() ,103)) + 4000 -
n4.num * 1000 -
n3.num * 100 -
n2.num * 10 -
n1.num) as Year,
month(CONVERT(SMALLDATETIME, CONVERT(CHAR,GETDATE() ,103)) + 4000 -
n4.num * 1000 -
n3.num * 100 -
n2.num * 10 -
n1.num) as Month,
day(CONVERT(SMALLDATETIME, CONVERT(CHAR,GETDATE() ,103)) + 4000 -
n4.num * 1000 -
n3.num * 100 -
n2.num * 10 -
n1.num) as Day
FROM (SELECT 0 AS num union ALL
SELECT 1 UNION ALL
SELECT 2 UNION ALL
SELECT 3 UNION ALL
SELECT 4 UNION ALL
SELECT 5 UNION ALL
SELECT 6 UNION ALL
SELECT 7 UNION ALL
SELECT 8 UNION ALL
SELECT 9) n1
,(SELECT 0 AS num UNION ALL
SELECT 1 UNION ALL
SELECT 2 UNION ALL
SELECT 3 UNION ALL
SELECT 4 UNION ALL
SELECT 5 UNION ALL
SELECT 6 UNION ALL
SELECT 7 UNION ALL
SELECT 8 UNION ALL
SELECT 9) n2
,(SELECT 0 AS num union ALL
SELECT 1 UNION ALL
SELECT 2 UNION ALL
SELECT 3 UNION ALL
SELECT 4 UNION ALL
SELECT 5 UNION ALL
SELECT 6 UNION ALL
SELECT 7 UNION ALL
SELECT 8 UNION ALL
SELECT 9) n3
,(SELECT 0 AS num UNION ALL
SELECT 1 UNION ALL
SELECT 2 UNION ALL
SELECT 3 UNION ALL
SELECT 4 UNION ALL
SELECT 5 UNION ALL
SELECT 6 UNION ALL
SELECT 7 UNION ALL
SELECT 8) n4
) GenCalendar ORDER BY 1
The answer from this question provided the answer to this question much more simply.
Write is a special statement designed to generate machine-readable files that are later consumed with Input.
Use Print to avoid any fiddling with data.
Thank you user GSerg
Like others have already noted, you can use :empty
in jQuery like this:
$('#cartContent:empty').remove();
It will remove the #cartContent
div if it is empty.
But this and other techniques that people are suggesting here may not do what you want because if it has any text nodes containing whitespace it is not considered empty. So this is not empty:
<div> </div>
while you may want to consider it empty.
I had this problem some time ago and I wrote this tiny jQuery plugin - just add it to your code:
jQuery.expr[':'].space = function(elem) {
var $elem = jQuery(elem);
return !$elem.children().length && !$elem.text().match(/\S/);
}
and now you can use
$('#cartContent:space').remove();
which will remove the div if it is empty or contains only whitespace. Of course you can not only remove it but do anything you like, like
$('#cartContent:space').append('<p>It is empty</p>');
and you can use :not
like this:
$('#cartContent:not(:space)').append('<p>It is not empty</p>');
I came out with this test that reliably did what I wanted and you can take it out of the plugin to use it as a standalone test:
This one will work for jQuery objects:
function testEmpty($elem) {
return !$elem.children().length && !$elem.text().match(/\S/);
}
This one will work for DOM nodes:
function testEmpty(elem) {
var $elem = jQuery(elem);
return !$elem.children().length && !$elem.text().match(/\S/);
}
This is better than using .trim
because the above code first tests if the tested element has any child elements and if it does it tries to find the first non-whitespace character and then stops, without the need to read or mutate the string if it has even one character that is not whitespace.
Hope it helps.
For anyone who like do things in XML, specially in case where you are using Navigation architecture component actions in order to navigate to dialogs
You can use:
<style name="DialogStyle" parent="ThemeOverlay.MaterialComponents.Dialog.Alert">
<!-- dialog_background is drawable shape with corner radius -->
<item name="android:background">@drawable/dialog_background</item>
<item name="android:windowBackground">@android:color/transparent</item>
</style>
refresh the datagridview and refresh the datatable
dataGridView1.Refresh();
datatable.Clear();
If you are using windows and are interested in clearing the screen before running the program, you can compile the file call it from a .bat file. for example:
cls
java "what ever the name of the compiles class is"
Save as "etc".bat and then running by calling it in the command prompt or double clicking the file
This will create a dropdown menu from an array and automatically assign its respective value.
<?php
$names = array('tn'=>'Tunisia','us'=>'United States','fr'=>'France');
echo '<select name="countries">';
foreach($names AS $let=>$word){
echo '<option value="'.$let.'">'.$word.'</option>';
}
echo '</select>';
?>
<select name="countries">
<?php
$countries = array('tn'=> "Tunisia", "us"=>'United States',"fr"=>'France');
foreach($countries as $select=>$country_name){
echo '<option value="' . $select . '">' . $country_name . '</option>';
}
?>
</select>
<?php
$my_array = array(
'tn' => 'Tunisia',
'us' => 'United States',
'fr' => 'France'
);
echo '<select name="countries">';
echo '<option value="none">Select...</option>';
foreach ($my_array as $k => $v) {
echo '<option value="' . $k . '">' . $v . '</option>';
}
echo '</select>';
?>
mydict = {'george': 16, 'amber': 19}
print mydict.keys()[mydict.values().index(16)] # Prints george
Or in Python 3.x:
mydict = {'george': 16, 'amber': 19}
print(list(mydict.keys())[list(mydict.values()).index(16)]) # Prints george
Basically, it separates the dictionary's values in a list, finds the position of the value you have, and gets the key at that position.
More about keys()
and .values()
in Python 3: How can I get list of values from dict?
m:n refers to many to many relationship where as 1:n means one to many relationship forexample employee(id,name,skillset) skillset(id,skillname,qualifications)
in this case the one employee can have many skills and ignoring other cases you can say that its a 1:N relationship
When running into this issue, please try adding parameters to your add-migration cmdlet. For example, specifying the start up project as well as the connection string name could help EF find your target database.
add-migration Delta_Defect_0973 -ConfigurationTypeName your.namespace.ContextClassName -StartUpProject DeltaProject -ConnectionStringName DeltaSQL
Where:
Delta_Defect_0973 is the name of your migration
your.namespace.ContextClassName is the name of your Configuration class in your migration folder, prefixed with the full name space.
DeltaProject is the name of your main project with your web.config or app.config file.
DeltaSQL is the name of your connection string defined in your web.config or app.config file.
I had a similar thing to work on, and this is how I did it.
import os
rootdir = os.getcwd()
for subdir, dirs, files in os.walk(rootdir):
for file in files:
#print os.path.join(subdir, file)
filepath = subdir + os.sep + file
if filepath.endswith(".html"):
print (filepath)
Hope this helps.
You can pass the inline handler the this
keyword, obtaining the element which fired the event.
like,
onclick="confirmSubmit(this);"
Your "bad" output is UTF-8 displayed as CP1252.
On Windows, many editors assume the default ANSI encoding (CP1252 on US Windows) instead of UTF-8 if there is no byte order mark (BOM) character at the start of the file. While a BOM is meaningless to the UTF-8 encoding, its UTF-8-encoded presence serves as a signature for some programs. For example, Microsoft Office's Excel requires it even on non-Windows OSes. Try:
df.to_csv('file.csv',encoding='utf-8-sig')
That encoder will add the BOM.
Actually, the Form Submission subsection of the current HTML5 draft does not allow action=""
. It is against the spec.
The
action
andformaction
content attributes, if specified, must have a value that is a valid non-empty URL potentially surrounded by spaces. (emphasis added)
The quoted section in mercator's answer is a requirement on implementations, not authors. Authors must follow the author requirements. To quote How to read this specification:
In particular, there are conformance requirements that apply to producers, for example authors and the documents they create, and there are conformance requirements that apply to consumers, for example Web browsers. They can be distinguished by what they are requiring: a requirement on a producer states what is allowed, while a requirement on a consumer states how software is to act.
The change from HTML4—which did allow an empty URL—was made because “browsers do weird things with an empty action=""
attribute”. Considering the reason for the change, its probably best not to do that in HTML4 either.
You can use the DataTables api to filter the table. So all you need is your own input field with a keyup event that triggers the filter function to DataTables. With css or jquery you can hide/remove the existing search input field. Or maybe DataTables has a setting to remove/not-include it.
Checkout the Datatables API documentation on this.
Example:
HTML
<input type="text" id="myInputTextField">
JS
oTable = $('#myTable').DataTable(); //pay attention to capital D, which is mandatory to retrieve "api" datatables' object, as @Lionel said
$('#myInputTextField').keyup(function(){
oTable.search($(this).val()).draw() ;
})
At one time, I remember seeing the MSDN library state to use CStr() because it was faster. I do not know if this is true though.
Why your code does not work?
The where
method returns an ActiveRecord::Relation object (acts like an array which contains the results of the where
), it can be empty but it will never be nil
.
Business.where(id: -1)
#=> returns an empty ActiveRecord::Relation ( similar to an array )
Business.where(id: -1).nil? # ( similar to == nil? )
#=> returns false
Business.where(id: -1).empty? # test if the array is empty ( similar to .blank? )
#=> returns true
Option 1: Using .exists?
if Business.exists?(user_id: current_user.id)
# same as Business.where(user_id: current_user.id).exists?
# ...
else
# ...
end
Option 2: Using .present?
(or .blank?
, the opposite of .present?
)
if Business.where(:user_id => current_user.id).present?
# less efficiant than using .exists? (see generated SQL for .exists? vs .present?)
else
# ...
end
Option 3: Variable assignment in the if statement
if business = Business.where(:user_id => current_user.id).first
business.do_some_stuff
else
# do something else
end
This option can be considered a code smell by some linters (Rubocop for example).
Option 3b: Variable assignment
business = Business.where(user_id: current_user.id).first
if business
# ...
else
# ...
end
You can also use .find_by_user_id(current_user.id)
instead of .where(...).first
Best option:
Business
object(s): Option 1Business
object(s): Option 3For some reason no one has mentioned the fact that the bashrc needs to be re-sourced after editing. You can either log out and log back in (like mentioned above) but you can also use the commands: source ~/.bashrc
or . ~/.bashrc
.
I don't think you can do that. You can be in the middle of the document, however you don't know the toolbar layout or the size of the browser controls. Thus you can center in the document, but not in the middle of the browser window.
No, the standard way to serialize to JSON is to use an existing JSON serialization library. If you don't wish to do this, then you're going to have to write your own serialization methods.
If you want guidance on how to do this, I'd suggest examining the source of some of the available libraries.
EDIT: I'm not going to come out and say that writing your own serliazation methods is bad, but you must consider that if it's important to your application to use well-formed JSON, then you have to weigh the overhead of "one more dependency" against the possibility that your custom methods may one day encounter a failure case that you hadn't anticipated. Whether that risk is acceptable is your call.
I use this function for dd/mm/yyyy format :
// (new Date()).fromString("3/9/2013") : 3 of september
// (new Date()).fromString("3/9/2013", false) : 9 of march
Date.prototype.fromString = function(str, ddmmyyyy) {
var m = str.match(/(\d+)(-|\/)(\d+)(?:-|\/)(?:(\d+)\s+(\d+):(\d+)(?::(\d+))?(?:\.(\d+))?)?/);
if(m[2] == "/"){
if(ddmmyyyy === false)
return new Date(+m[4], +m[1] - 1, +m[3], m[5] ? +m[5] : 0, m[6] ? +m[6] : 0, m[7] ? +m[7] : 0, m[8] ? +m[8] * 100 : 0);
return new Date(+m[4], +m[3] - 1, +m[1], m[5] ? +m[5] : 0, m[6] ? +m[6] : 0, m[7] ? +m[7] : 0, m[8] ? +m[8] * 100 : 0);
}
return new Date(+m[1], +m[3] - 1, +m[4], m[5] ? +m[5] : 0, m[6] ? +m[6] : 0, m[7] ? +m[7] : 0, m[8] ? +m[8] * 100 : 0);
}
using latest jquery mutation
var $target = jQuery(".required-entry");
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(mutation) {
if (mutation.attributeName === "class") {
var attributeValue = jQuery(mutation.target).prop(mutation.attributeName);
if (attributeValue.indexOf("search-class") >= 0){
// do what you want
}
}
});
});
observer.observe($target[0], {
attributes: true
});
// any code which update div having class required-entry which is in $target like $target.addClass('search-class');
This is a derivite of previous post, but this gets the latest version of the .net framework 4 in my tests.
get-itemproperty -name version,release "hklm:\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\FULL"
Which will allow you to invoke-command to remote machine:
invoke-command -computername server01 -scriptblock {get-itemproperty -name version,release "hklm:\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\FULL" | select pscomputername,version,release}
Which sets up this possibility with ADModule and naming convention prefix:
get-adcomputer -Filter 'name -like "*prefix*"' | % {invoke-command -computername $_.name -scriptblock {get-itemproperty -name version,release "hklm:\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\FULL" | select pscomputername,version,release} | ft
I had a same problem and this fixed it:
You should add:
C:\Program Files (x86)\Microsoft SDKs\Windows\v7.1A\Lib\x64
for 64 bit system
C:\Program Files (x86)\Microsoft SDKs\Windows\v7.1A\Lib
for 32 bit system
in Property Manager
>Linker
>General
>Additional Library Directories
I had this problem because I was including the node_modules folder in my Git repository. When I rebuilt the node_modules on the other system it worked. One of them was running Linux, the other OS X. Maybe they had different processor architectures as well.
I had a span that would create a popup. If I used "click touchstart" it would trigger parts of the popup during the touchend. I fixed this by making the span "click touchend".
I tried a few solutions in here and the important thing to understand is that it's the root view controller that will determine if it will rotate or not.
I created the following objective-c project github.com/GabLeRoux/RotationLockInTabbedViewChild with a working example of a TabbedViewController
where one child view is allowed rotating and the other child view is locked in portrait.
It's not perfect but it works and the same idea should work for other kind of root views such as NavigationViewController
. :)
You have to add the selector parameter, otherwise the event is directly bound instead of delegated, which only works if the element already exists (so it doesn't work for dynamically loaded content).
See http://api.jquery.com/on/#direct-and-delegated-events
Change your code to
$(document.body).on('click', '.update' ,function(){
The jQuery set receives the event then delegates it to elements matching the selector given as argument. This means that contrary to when using live
, the jQuery set elements must exist when you execute the code.
As this answers receives a lot of attention, here are two supplementary advises :
1) When it's possible, try to bind the event listener to the most precise element, to avoid useless event handling.
That is, if you're adding an element of class b
to an existing element of id a
, then don't use
$(document.body).on('click', '#a .b', function(){
but use
$('#a').on('click', '.b', function(){
2) Be careful, when you add an element with an id, to ensure you're not adding it twice. Not only is it "illegal" in HTML to have two elements with the same id but it breaks a lot of things. For example a selector "#c"
would retrieve only one element with this id.
If you have your backend and database started on docker
Instead of putting localhost or 127.0.0.1 as DB_HOST put the name of the registered service that indicates your database service in the docker-compose file.
In my case for example I replaced 127.0.0.1 with db because in my docker-compose file I had defined the name of the service for the database as db
My docker-compose looks something like that
services:
db: <------ This is the name of the DB_HOST
container_name: admin_db
image:mysql:5.7.22
.
.
.
I'll leave here just another form of this command that suited my needs.
There was a tag v0.0.1.2
that I wanted to move.
$ git tag -f v0.0.1.2 63eff6a
Updated tag 'v0.0.1.2' (was 8078562)
And then:
$ git push --tags --force
In eclipse help documentation, we can all icons information as follows. Common path for all eclipse versions except eclipse version:
Check your dump file. Looks like a stray character at the beginning. SQL isn't standard the world around, and the MySQL importer expects MySQL-friendly SQL. I'm willing to bet that your exporter did something funky.
You may have to massage the file a bit to get it to work with MySQL.
This is kind of overriding the thing of one page, but... You could use iframes in HTML.
<html>
<body>
<iframe src="page1.html" border="0"></iframe>
</body>
</html>
And page1.html would be your base page. Your still making multiple pages, but your browser just doesn't move. So lets say thats your index.html. You have tabs, you click page 2, your url wont change, but the page will. All in iframes. The only thing different, is that you can view the frame source as well.
I had a similar problem when using Angular, here is the solution that I've found.
Step 1. Get all the object keys. using Object.keys. This method returns an array of a given object’s own enumerable properties.
Step 2. Create an empty array. This is an where all the properties are going to live, since your new ngFor loop is going to point to this array, we gotta catch them all. Step 3. Iterate throw all keys, and push each one into the array you created. Here’s how that looks like in code.
// Evil response in a variable. Here are all my vehicles.
let evilResponse = {
"car" :
{
"color" : "red",
"model" : "2013"
},
"motorcycle":
{
"color" : "red",
"model" : "2016"
},
"bicycle":
{
"color" : "red",
"model" : "2011"
}
}
// Step 1. Get all the object keys.
let evilResponseProps = Object.keys(evilResponse);
// Step 2. Create an empty array.
let goodResponse = [];
// Step 3. Iterate throw all keys.
for (prop of evilResponseProps) {
goodResponse.push(evilResponseProps[prop]);
}
Here is a link to the original post. https://medium.com/@papaponmx/looping-over-object-properties-with-ngfor-in-angular-869cd7b2ddcc
I tried lot of ways and then I decided to write my own. So here it is:
bool IsBetween (float x, float b1, float b2)
{
return ( ((x >= (b1 - 0.1f)) &&
(x <= (b2 + 0.1f))) ||
((x >= (b2 - 0.1f)) &&
(x <= (b1 + 0.1f))));
}
bool IsSegmentsColliding( POINTFLOAT lineA,
POINTFLOAT lineB,
POINTFLOAT line2A,
POINTFLOAT line2B)
{
float deltaX1 = lineB.x - lineA.x;
float deltaX2 = line2B.x - line2A.x;
float deltaY1 = lineB.y - lineA.y;
float deltaY2 = line2B.y - line2A.y;
if (abs(deltaX1) < 0.01f &&
abs(deltaX2) < 0.01f) // Both are vertical lines
return false;
if (abs((deltaY1 / deltaX1) -
(deltaY2 / deltaX2)) < 0.001f) // Two parallel line
return false;
float xCol = ( ( (deltaX1 * deltaX2) *
(line2A.y - lineA.y)) -
(line2A.x * deltaY2 * deltaX1) +
(lineA.x * deltaY1 * deltaX2)) /
((deltaY1 * deltaX2) - (deltaY2 * deltaX1));
float yCol = 0;
if (deltaX1 < 0.01f) // L1 is a vertical line
yCol = ((xCol * deltaY2) +
(line2A.y * deltaX2) -
(line2A.x * deltaY2)) / deltaX2;
else // L1 is acceptable
yCol = ((xCol * deltaY1) +
(lineA.y * deltaX1) -
(lineA.x * deltaY1)) / deltaX1;
bool isCol = IsBetween(xCol, lineA.x, lineB.x) &&
IsBetween(yCol, lineA.y, lineB.y) &&
IsBetween(xCol, line2A.x, line2B.x) &&
IsBetween(yCol, line2A.y, line2B.y);
return isCol;
}
Based on these two formulas: (I simplified them from equation of lines and other formulas)
Prefer <appSettings>
to <customUserSetting>
section. It is much easier to read AND write with (Web)ConfigurationManager. ConfigurationSection, ConfigurationElement and ConfigurationElementCollection require you to derive custom classes and implement custom ConfigurationProperty properties. Way too much for mere everyday mortals IMO.
Here is an example of reading and writing to web.config:
using System.Web.Configuration;
using System.Configuration;
Configuration config = WebConfigurationManager.OpenWebConfiguration("/");
string oldValue = config.AppSettings.Settings["SomeKey"].Value;
config.AppSettings.Settings["SomeKey"].Value = "NewValue";
config.Save(ConfigurationSaveMode.Modified);
Before:
<appSettings>
<add key="SomeKey" value="oldValue" />
</appSettings>
After:
<appSettings>
<add key="SomeKey" value="newValue" />
</appSettings>
As mentioned in multiple answers above you can import the cURL in POSTMAN directly. But if URL is authorized (or is not working for some reason) ill suggest you can manually add all the data points as JSON in your postman body. take the API URL from the cURL.
for the Authorization part- just add an Authorization key and base 64 encoded string as value.
example:
curl -u rzp_test_26ccbdbfe0e84b:69b2e24411e384f91213f22a \ https://api.razorpay.com/v1/orders -X POST \ --data "amount=50000" \ --data "currency=INR" \ --data "receipt=Receipt #20" \ --data "payment_capture=1" https://api.razorpay.com/v1/orders
{
"amount": "5000",
"currency": "INR",
"receipt": "Receipt #20",
"payment_capture": "1"
}
Headers:
Authorization:Basic cnpwX3Rlc3RfWEk5QW5TU0N3RlhjZ0Y6dURjVThLZ3JiQVVnZ3JNS***U056V25J
where "cnpwX3Rlc3RfWEk5QW5TU0N3RlhjZ0Y6dURjVThLZ3JiQVVnZ3JNS***U056V25J" is the encoded form of "rzp_test_26ccbdbfe0e84b:69b2e24411e384f91213f22a"`
small tip: for encoding, you can easily go to your chrome console (right-click => inspect) and type :
btoa("string you want to encode")
( or use postman basic authorization)
The main reason I used Reflector (and, I think, the main reason most people used it) was for its decompiler: it can translate a method's IL back into source code.
On that count, Monoflector would be the project to watch. It uses Cecil, which does the reflection, and Cecil.Decompiler, which does the decompilation. But Monoflector layers a UI on top of both libraries, which should give you a very good idea of how to use the API.
Monoflector is also a decent alternative to Reflector outright. It lets you browse the types and decompile the methods, which is 99% of what people used Reflector for. It's very rough around the edges, but I'm thinking that will change quickly.
Quick note: if you want to do selection based on a partial string contained in the index, try the following:
df['stridx']=df.index
df[df['stridx'].str.contains("Hello|Britain")]
It depends on what level of integration you want, I've used Subversion/TortoiseSVN which seems fine for simple usage. I have also added in keywords but there seems to be a risk of file corruption. There's an option in Subversion to make the keyword substitutions fixed length and as far as I understand it will work if the fixed length is even but not odd. In any case you don't get any useful sort of diff functionality, I think there are commercial products that will do 'diff'. I did find something that did diff based on converting stuff to plain text and comparing that, but it wasn't very nice.
See the article Django Documentation
ur_data_model.objects.filter(ur_date_field__gte=datetime(2009, 8, 22), ur_date_field__lt=datetime(2009, 8, 23))
I got around the issue by using a convert on the "?", so my code looks like convert(char(50),?) and that got rid of the truncation error.
I think you lack to pass Connection
object to your command
object. and it is much better if you will use command
and parameters
for that.
using (SqlConnection connection = new SqlConnection("ConnectionStringHere"))
{
using (SqlCommand command = new SqlCommand())
{
command.Connection = connection; // <== lacking
command.CommandType = CommandType.Text;
command.CommandText = "INSERT into tbl_staff (staffName, userID, idDepartment) VALUES (@staffName, @userID, @idDepart)";
command.Parameters.AddWithValue("@staffName", name);
command.Parameters.AddWithValue("@userID", userId);
command.Parameters.AddWithValue("@idDepart", idDepart);
try
{
connection.Open();
int recordsAffected = command.ExecuteNonQuery();
}
catch(SqlException)
{
// error here
}
finally
{
connection.Close();
}
}
}
Simple way to remember:
Object Model is concerned with the following three concepts Data Abstraction Encapsulation Inheritance The relational model used the basic concept of a relation or table. Object-relational mapping (OR mapping) products integrate object programming language capabilities with relational databases.
I usually use the .ToString() method on exceptions to present the full exception information (including the inner stack trace) in text:
catch (MyCustomException ex)
{
Debug.WriteLine(ex.ToString());
}
Sample output:
ConsoleApplication1.MyCustomException: some message .... ---> System.Exception: Oh noes!
at ConsoleApplication1.SomeObject.OtherMethod() in C:\ConsoleApplication1\SomeObject.cs:line 24
at ConsoleApplication1.SomeObject..ctor() in C:\ConsoleApplication1\SomeObject.cs:line 14
--- End of inner exception stack trace ---
at ConsoleApplication1.SomeObject..ctor() in C:\ConsoleApplication1\SomeObject.cs:line 18
at ConsoleApplication1.Program.DoSomething() in C:\ConsoleApplication1\Program.cs:line 23
at ConsoleApplication1.Program.Main(String[] args) in C:\ConsoleApplication1\Program.cs:line 13
ANDROID_HOME
Deprecated (in Android Studio), use ANDROID_SDK_ROOT
instead.
ANDROID_SDK_ROOT
Installation directory of Android SDK package.
Example: C:\AndroidSDK
or /usr/local/android-sdk/
ANDROID_NDK_ROOT
Installation directory of Android NDK package. (WITHOUT ANY SPACE)
Example: C:\AndroidNDK
or /usr/local/android-ndk/
ANDROID_SDK_HOME
Location of SDK related data/user files.
Example: C:\Users\<USERNAME>\.android\
or ~/.android/
ANDROID_EMULATOR_HOME
Location of emulator-specific data files.
Example: C:\Users\<USERNAME>\.android\
or ~/.android/
ANDROID_AVD_HOME
Location of AVD-specific data files.
Example: C:\Users\<USERNAME>\.android\avd\
or ~/.android/avd/
JDK_HOME
and JAVA_HOME
Installation directory of JDK (aka Java SDK) package.
Note: This is used to run Android Studio(and other Java-based applications). Actually when you run Android Studio, it checks for JDK_HOME
then JAVA_HOME
environment variables to use.
If you're using CloudFoundry then you'd have to explicitly push the jar along with the keystore having the certificate.
Predicate
has methods and
, or
and negate
.
However, String::isEmpty
is not a Predicate
, it's just a String -> Boolean
lambda and it could still become anything, e.g. Function<String, Boolean>
. Type inference is what needs to happen first. The filter
method infers type implicitly. But if you negate it before passing it as an argument, it no longer happens. As @axtavt mentioned, explicit inference can be used as an ugly way:
s.filter(((Predicate<String>) String::isEmpty).negate()).count()
There are other ways advised in other answers, with static not
method and lambda most likely being the best ideas. This concludes the tl;dr section.
However, if you want some deeper understanding of lambda type inference, I'd like to explain it a bit more to depth, using examples. Look at these and try to figure out what happens:
Object obj1 = String::isEmpty;
Predicate<String> p1 = s -> s.isEmpty();
Function<String, Boolean> f1 = String::isEmpty;
Object obj2 = p1;
Function<String, Boolean> f2 = (Function<String, Boolean>) obj2;
Function<String, Boolean> f3 = p1::test;
Predicate<Integer> p2 = s -> s.isEmpty();
Predicate<Integer> p3 = String::isEmpty;
Predicate
to Object
- silly but validPredicate
to Function
, it's no longer about inferencetest
that is defined by its lambdaInteger
doesn't have isEmpty
methodString::isEmpty
static method with Integer
argumentI hope this helps get some more insight into how type inferrence works.
tnsping xe --if you have installed express edition
tnsping orcl --or if you have installed enterprise or standard edition then try to run
--if you get a response with your description then you will write the below command
sqlplus --this will prompt for user
hr --user that you have created or use system
password --inputted at the time of user creation for hr, or put the password given at the time of setup for system user
hope this will connect if db run at your localhost.
--if db host in a remote host then you must use tns name for our example orcl or xe
try this to connect remote
hr/pass...@orcl or hr/pass...@xe --based on what edition you have installed
When we have a big/lengthy class say more than couple 100 lines of code we can't see everything on Monitor screen, hence we can't see overview (also called document items) of our class. Sometime we want to see overview of our class; its all methods, constants, properties etc at a glance. You can press Ctrl+6 in XCode to see overview of your class. You'll get a pop-up kind of Window aka Jump Bar.
By default, this jump bar doesn't have any buckets/sections. It's just one long list. (Though we can just start typing when jump Bar appears and it will search among jump bar items). Here comes the need of pragma mark
If you want to create sections in your Jump Bar then you can use pragma marks with relevant description. Now refer snapshot attached in question. There 'View lifeCycle' and 'A section dedicated ..' are sections created by pragma mark
s
This code helped me get this behaviour: With a list a,b,c, I should get compared ab, ac and bc, but any other pair would be excess / not needed.
import java.util.*;
import static java.lang.System.out;
// rl = rawList; lr = listReversed
ArrayList<String> rl = new ArrayList<String>();
ArrayList<String> lr = new ArrayList<String>();
rl.add("a");
rl.add("b");
rl.add("c");
rl.add("d");
rl.add("e");
rl.add("f");
lr.addAll(rl);
Collections.reverse(lr);
for (String itemA : rl) {
lr.remove(lr.size()-1);
for (String itemZ : lr) {
System.out.println(itemA + itemZ);
}
}
The loop goes as like in this picture: Triangular comparison visual example
or as this:
| f e d c b a
------------------------------
a | af ae ad ac ab ·
b | bf be bd bc ·
c | cf ce cd ·
d | df de ·
e | ef ·
f | ·
total comparisons is a triangular number (n * n-1)/2
Was looking for a file/folder browser myself recently and decided to make a new explorer activity (Android library): https://github.com/vaal12/AndroidFileBrowser
Matching Test application https://github.com/vaal12/FileBrowserTestApplication- is a sample how to use.
Allows picking directories and files from phone file structure.
Try this sample:
public static T GetEnum<T>(string model)
{
var newModel = GetStringForEnum(model);
if (!Enum.IsDefined(typeof(T), newModel))
{
return (T)Enum.Parse(typeof(T), "None", true);
}
return (T)Enum.Parse(typeof(T), newModel.Result, true);
}
private static Task<string> GetStringForEnum(string model)
{
return Task.Run(() =>
{
Regex rgx = new Regex("[^a-zA-Z0-9 -]");
var nonAlphanumericData = rgx.Matches(model);
if (nonAlphanumericData.Count < 1)
{
return model;
}
foreach (var item in nonAlphanumericData)
{
model = model.Replace((string)item, "");
}
return model;
});
}
In this sample you can send every string, and set your Enum
. If your Enum
had data that you wanted, return that as your Enum
type.
The -p
flag of netstat
gives you PID of the process:
netstat -l -p
Edit: The command that is needed to get PIDs of socket users in FreeBSD is sockstat
.
As we worked out during the discussion with @Cyclone, the line that does the job is:
sockstat -4 -l | grep :80 | awk '{print $3}' | head -1
You have to escape the double quote with a backslash.
s = s.Replace("\"","");
I found something I did wrong, install the Apache and MySQL services. Click on the WAMP logo, goto Apache -> Service -> Install Service, after that Apache -> Service -> Start/Resume Service. Do the same for MySQL and it will turn green.
In C#, you can write
(long)(date - new DateTime(1970, 1, 1)).TotalMilliseconds
just check your package.json file and add dependencies for bootstrap
"dependencies": {
"bootstrap": "^3.3.7",
}
then add below code on .angular-cli.json
file
"styles": [
"styles.css",
"../node_modules/bootstrap/dist/css/bootstrap.css"
],
Finally you just update your npm locally by using terminal
$ npm update
• System
is a class in java.lang
package
• out
is a static
object of PrintStream
class in java.io
package
• println()
is a method in the PrintStream
class
An alternative way to go around the problem, is to make the name of the session cookie be port related. For example:
Your code could access the webserver configuration to find out which port your server uses, and name the cookie accordingly.
Keep in mind that your application will receive both cookies, and you need to request the one that corresponds to your port.
There is no need to have the exact port number in the cookie name, but this is more convenient.
In general, the cookie name could encode any other parameter specific to the server instance you use, so it can be decoded by the right context.
Above answer is very correct but I'm giving an easy step to do it:
private static final long[] THREE_CYCLES = new long[] { 100, 1000, 1000, 1000, 1000, 1000 };
public void longVibrate(View v)
{
vibrateMulti(THREE_CYCLES);
}
private void vibrateMulti(long[] cycles) {
NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
Notification notification = new Notification();
notification.vibrate = cycles;
notificationManager.notify(0, notification);
}
And then in your xml file:
<button android:layout_height="wrap_content"
android:layout_width ="wrap_content"
android:onclick ="longVibrate"
android:text ="VibrateThrice">
</button>
That's the easiest way.
I would suggest the P: drive is not mapped for the account that sql server has started as.
If you got nothing when inputted fastboot devices
, it meaned you devices fail to enter fastboot model. Make sure that you enter fastboot model via press these three button simultaneously, power key, volume key(both '+' and '-').
Then you can see you devices via fastboot devices
and continue to flash your devices.
note:I entered fastboot model only pressed 'power key' and '-' key before, and present the same problem.
function myStringify(obj, maxDeepLevel = 2) {
if (obj === null) {
return 'null';
}
if (obj === undefined) {
return 'undefined';
}
if (maxDeepLevel < 0 || typeof obj !== 'object') {
return obj.toString();
}
return Object
.entries(obj)
.map(x => x[0] + ': ' + myStringify(x[1], maxDeepLevel - 1))
.join('\r\n');
}
You can handle the error appropriately when it propagates back to the calling program (or ignore it if that's what you want). In C# any errors that occur in SQL will throw an exception that I can catch and then handle in my code, just like any other error.
I agree with Beska in that you do not want to hide the error. You may not be dealing with a nuclear reactor but hiding errors in general is bad programming practice. This is one of the reasons most modern programming languages implement structured exception handling to decouple the actual return value with an error / status code. This is especially true when you are doing math. The biggest problem is that you cannot distinguish between a correctly computed 0 being returned or a 0 as the result of an error. Instead any value returned is the computed value and if anything goes wrong an exception is thrown. This will of course differ depending on how you are accessing the database and what language you are using but you should always be able to get an error message that you can deal with.
try
{
Database.ComputePercentage();
}
catch (SqlException e)
{
// now you can handle the exception or at least log that the exception was thrown if you choose not to handle it
// Exception Details: System.Data.SqlClient.SqlException: Divide by zero error encountered.
}
let plainString = "foo"
let plainData = plainString.data(using: .utf8)
let base64String = plainData?.base64EncodedString()
print(base64String!) // Zm9v
if let decodedData = Data(base64Encoded: base64String!),
let decodedString = String(data: decodedData, encoding: .utf8) {
print(decodedString) // foo
}
let plainString = "foo"
let plainData = plainString.dataUsingEncoding(NSUTF8StringEncoding)
let base64String = plainData?.base64EncodedStringWithOptions(NSDataBase64EncodingOptions(rawValue: 0))
print(base64String!) // Zm9v
let decodedData = NSData(base64EncodedString: base64String!, options: NSDataBase64DecodingOptions(rawValue: 0))
let decodedString = NSString(data: decodedData, encoding: NSUTF8StringEncoding)
print(decodedString) // foo
NSString *plainString = @"foo";
NSData *plainData = [plainString dataUsingEncoding:NSUTF8StringEncoding];
NSString *base64String = [plainData base64EncodedStringWithOptions:0];
NSLog(@"%@", base64String); // Zm9v
NSData *decodedData = [[NSData alloc] initWithBase64EncodedString:base64String options:0];
NSString *decodedString = [[NSString alloc] initWithData:decodedData encoding:NSUTF8StringEncoding];
NSLog(@"%@", decodedString); // foo
Try this
function arraysEqual(arr1, arr2){
if (!Array.isArray(arr1) || !Array.isArray(arr2) || arr1.length!=arr2.length)
return false;
return arr1.length==arr1.filter(word => arr2.includes(word)).length;
}
I'd do (added caching):
var bbx = $("#blackbox");
bbx.css('background-color') === 'rgb(255, 192, 203)' ? bbx.css('background','black') : bbx.css('background','pink')
wroking fiddle (new AGAIN): http://jsfiddle.net/6nar4/37/
I had to change the first operator as css()
returns the rgb value of the color
Using zip function we can get both element and index.
countries = ['Pakistan','India','China','Russia','USA']
for index, element zip(range(0,countries),countries):
print('Index : ',index)
print(' Element : ', element,'\n')
output : Index : 0 Element : Pakistan ...
See also :
This is impossible to answer and has been brought up many many times before. Do a search, read those threads, then pick the framework you and your team have experience with.
There are multiple ways to set profiles for your springboot application.
You can add this in your property file:
spring.profiles.active=dev
Programmatic way:
SpringApplication.setAdditionalProfiles("dev");
Tests make it very easy to specify what profiles are active
@ActiveProfiles("dev")
In a Unix environment
export spring_profiles_active=dev
JVM System Parameter
-Dspring.profiles.active=dev
Example: Running a springboot jar file with profile.
java -jar -Dspring.profiles.active=dev application.jar
One-line version of the accepted answer:
$out=explode("/", $mystring, 2)[0];
Should work in php 5.4+
Sometimes all you have to do to make sure the cursor is inside the text box is: click on the text box and when a menu is displayed, click on "Format text box" then click on the "text box" tab and finally modify all four margins (left, right, upper and bottom) by arrowing down until "0" appear on each margin.
Setup a ts project as following steps:
yarn global add typescript
yarn init
or setting defaults yarn init -yp
tsc --init
The project structure seems like:
¦ package.json
¦ tsconfig.json
¦ tslint.json
¦ yarn.lock
¦
+-dist
¦ index.js
¦
+-src
index.ts
One way is to use a Boolean series to index the column df['one']
. This gives you a new column where the True
entries have the same value as the same row as df['one']
and the False
values are NaN
.
The Boolean series is just given by your if
statement (although it is necessary to use &
instead of and
):
>>> df['que'] = df['one'][(df['one'] >= df['two']) & (df['one'] <= df['three'])]
>>> df
one two three que
0 10 1.2 4.2 10
1 15 70 0.03 NaN
2 8 5 0 NaN
If you want the NaN
values to be replaced by other values, you can use the fillna
method on the new column que
. I've used 0
instead of the empty string here:
>>> df['que'] = df['que'].fillna(0)
>>> df
one two three que
0 10 1.2 4.2 10
1 15 70 0.03 0
2 8 5 0 0
@Transactional
@RequestMapping(value = { "/getDatabaseTables" }, method = RequestMethod.GET)
public @ResponseBody String getDatabaseTables() throws Exception{
Connection con = ((SessionImpl) sessionFactory.getCurrentSession()).connection();
DatabaseMetaData md = con.getMetaData();
ResultSet rs = md.getTables(null, null, "%", null);
HashMap<String,List<String>> databaseTables = new HashMap<String,List<String>>();
List<String> tables = new ArrayList<String>();
String db = "";
while (rs.next()) {
tables.add(rs.getString(3));
db = rs.getString(1);
}
List<String> database = new ArrayList<String>();
database.add(db);
databaseTables.put("database", database);
Collections.reverse(tables);
databaseTables.put("tables", tables);
return new ObjectMapper().writeValueAsString(databaseTables);
}
@Transactional
@RequestMapping(value = { "/getTableDetails" }, method = RequestMethod.GET)
public @ResponseBody String getTableDetails(@RequestParam(value="tablename")String tablename) throws Exception{
System.out.println("...tablename......"+tablename);
Connection con = ((SessionImpl) sessionFactory.getCurrentSession()).connection();
Statement st = con.createStatement();
String sql = "select * from "+tablename;
ResultSet rs = st.executeQuery(sql);
ResultSetMetaData metaData = rs.getMetaData();
int rowCount = metaData.getColumnCount();
List<HashMap<String,String>> databaseColumns = new ArrayList<HashMap<String,String>>();
HashMap<String,String> columnDetails = new HashMap<String,String>();
for (int i = 0; i < rowCount; i++) {
columnDetails = new HashMap<String,String>();
Method method = com.mysql.jdbc.ResultSetMetaData.class.getDeclaredMethod("getField", int.class);
method.setAccessible(true);
com.mysql.jdbc.Field field = (com.mysql.jdbc.Field) method.invoke(metaData, i+1);
columnDetails.put("columnName", field.getName());//metaData.getColumnName(i + 1));
columnDetails.put("columnType", metaData.getColumnTypeName(i + 1));
columnDetails.put("columnSize", field.getLength()+"");//metaData.getColumnDisplaySize(i + 1)+"");
columnDetails.put("columnColl", field.getCollation());
columnDetails.put("columnNull", ((metaData.isNullable(i + 1)==0)?"NO":"YES"));
if (field.isPrimaryKey()) {
columnDetails.put("columnKEY", "PRI");
} else if(field.isMultipleKey()) {
columnDetails.put("columnKEY", "MUL");
} else if(field.isUniqueKey()) {
columnDetails.put("columnKEY", "UNI");
} else {
columnDetails.put("columnKEY", "");
}
columnDetails.put("columnAINC", (field.isAutoIncrement()?"AUTO_INC":""));
databaseColumns.add(columnDetails);
}
HashMap<String,List<HashMap<String,String>>> tableColumns = new HashMap<String,List<HashMap<String,String>>>();
Collections.reverse(databaseColumns);
tableColumns.put("columns", databaseColumns);
return new ObjectMapper().writeValueAsString(tableColumns);
}
Most of the given solutions using the mouseup
or contextmenu
events fire every time the right mouse button goes up, but they don't check wether it was down before.
If you are looking for a true right click event, which only fires when the mouse button has been pressed and released within the same element, then you should use the auxclick
event. Since this fires for every none-primary mouse button you should also filter other events by checking the button
property.
window.addEventListener("auxclick", (event) => {
if (event.button === 2) alert("Right click");
});
_x000D_
You can also create your own right click event by adding the following code to the start of your JavaScript:
{
const rightClickEvent = new CustomEvent('rightclick', { bubbles: true });
window.addEventListener("auxclick", (event) => {
if (event.button === 2) {
event.target.dispatchEvent(rightClickEvent);
}
});
}
You can then listen for right click events via the addEventListener
method like so:
your_element.addEventListener("rightclick", your_function);
Read more about the auxclick
event on MDN.
Here's a different approach. I prefer rather than to rely on browser support, or address this at the application layer, to use web server logic.
If you are using Apache, and can put an .htaccess file in the relevant directory you could use the code below. Of course, you could put this in httpd.conf as well, if you have access to that.
<FilesMatch "\.(?i:pdf)$">
Header set Content-Disposition attachment
</FilesMatch>
The FilesMatch directive is just a regex so it could be set as granularly as you want, or you could add in other extensions.
The Header line does the same thing as the first line in the PHP scripts above. If you need to set the Content-Type lines as well, you could do so in the same manner, but I haven't found that necessary.
For those that pointed out the fact that you can't use the toString method of InputStream like this see https://stackoverflow.com/a/5445161/1304830 :
My correct answer would be then :
import org.json.JSONObject;
public static String convertStreamToString(java.io.InputStream is) {
java.util.Scanner s = new java.util.Scanner(is).useDelimiter("\\A");
return s.hasNext() ? s.next() : "";
}
...
JSONObject json = new JSONObject(convertStreamToString(url.openStream());
Modify build.gradle to put your main class in the manifest:
jar {
manifest {
attributes 'Implementation-Title': 'Gradle Quickstart',
'Implementation-Version': version,
'Main-Class': 'hello.helloWorld'
}
}
You can try adding action="#{yourBean.function1}" on each button (changing of course the method function2, function3, or whatever you need). If that does not work, you can try the same with the onclick event.
Anyway, it would be easier to help you if you tell us what kind of buttons are you trying to use, a4j:commandButton or whatever you are using.
Check out Apache Commons FileUtils (listFiles, iterateFiles, etc.). Nice convenience methods for doing what you want and also applying filters.
http://commons.apache.org/io/api-1.4/org/apache/commons/io/FileUtils.html
You can use the more
command. For example:
more filename.txt
Take a look at GNU utilities for Win32 or download it:
If you don't mind hardcoding it you can do this ~> android:background="#eeeeee" and drop any hex color # you wish.
Looks like this....
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_below="@+id/textView1"
android:text="@string/ClickMe"
android:background="#fff"/>
The expires
and add_header
directives have no impact on NGINX caching the files, those are purely about what the browser sees.
What you likely want instead is:
location stuffyoudontwanttocache {
# don't cache it
proxy_no_cache 1;
# even if cached, don't try to use it
proxy_cache_bypass 1;
}
Though usually .js etc is the thing you would cache, so perhaps you should just disable caching entirely?
I faced same issue when I ran following commands
vagrant init
vagrant up
Bringing machine 'default' up with 'virtualbox' provider...
==> default: Box 'base' could not be found. Attempting to find and install...
default: Box Provider: virtualbox
default: Box Version: >= 0
==> default: Box file was not detected as metadata. Adding it directly...
==> default: Adding box 'base' (v0) for provider: virtualbox
default: Downloading: base
An error occurred while downloading the remote file. The error
message, if any, is reproduced below. Please fix this error and try
again.
Couldn't open file /home/...../base
I corrected with
>vagrant init laravel/homestead
>Vagrant up
It worked for me.
Happy coding
I just wrote a new Join
that I like, so I thought I'd re-answer, with it:
public static string Join<T>(this IEnumerable<T> source, string separator)
{
return string.Join(separator, source.Select(e => e.ToString()).ToArray());
}
One of the cool things about this is that it work with collections that aren't strings, by calling ToString() on the elements. Usage is still the same:
//...
string s = " 1 2 4 5".Split (
" ".ToCharArray(),
StringSplitOptions.RemoveEmptyEntries
).Join (" ");
See RFC 2822, section 2.1.1 to start.
There are two limits that this standard places on the number of characters in a line. Each line of characters MUST be no more than 998 characters, and SHOULD be no more than 78 characters, excluding the CRLF.
As the RFC states later, you can work around this limit (not that you should) by folding the subject over multiple lines.
Each header field is logically a single line of characters comprising the field name, the colon, and the field body. For convenience however, and to deal with the 998/78 character limitations per line, the field body portion of a header field can be split into a multiple line representation; this is called "folding". The general rule is that wherever this standard allows for folding white space (not simply WSP characters), a CRLF may be inserted before any WSP. For example, the header field:
Subject: This is a test
can be represented as:
Subject: This is a test
The recommendation for no more than 78 characters in the subject header sounds reasonable. No one wants to scroll to see the entire subject line, and something important might get cut off on the right.
We can do like below:
Create a new object of notification builder and call setSmallIcon()
using notification builder object like in below code.
Create a method in which we will check on which OS version we are installing our app . If it is below Lolipop i.e API 21 then it will take the normal app icon with background color else it will take the transparent app icon without any background. So the devices using os version >= 21 will set the background color of icon using method setColor()
of Notification builder class.
Sample Code:
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this);
notificationBuilder.setSmallIcon(getNotificationIcon(notificationBuilder));
private int getNotificationIcon(NotificationCompat.Builder notificationBuilder) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
int color = 0x008000;
notificationBuilder.setColor(color);
return R.drawable.app_icon_lolipop_above;
}
return R.drawable.app_icon_lolipop_below;
}
The answer was surprisingly simple. I had to add a Content-Type
header in the POST
request with a value of application/json
. Without this header Jersey did not know what to do with the request body (in spite of the @Consumes(MediaType.APPLICATION_JSON)
annotation)!
private static boolean isASCII(String s)
{
for (int i = 0; i < s.length(); i++)
if (s.charAt(i) > 127)
return false;
return true;
}
If you are looking for a direct approach and using a local
File in that case.
Try
<div
style={{ background-image: 'url(' + Image + ')', background-size: 'auto' }}
/>
This is the case of JS
with inline styling where Image
is a local file that you must have imported with a path.
Usually I do this:
<div>
<p>
<img src='1.jpg' align='left' />
Text Here
<p>
</div>
export
in sh
and related shells (such as bash
), marks an environment variable to be exported to child-processes, so that the child inherits them.
The shell shall give the export attribute to the variables corresponding to the specified names, which shall cause them to be in the environment of subsequently executed commands. If the name of a variable is followed by = word, then the value of that variable shall be set to word.
I was facing the similar problem with Spring-boot-2 applications with Java 9 library.
Adding the following dependency in my pom.xml solved the issue for me:
<dependency>
<groupId>com.googlecode.slf4j-maven-plugin-log</groupId>
<artifactId>slf4j-maven-plugin-log</artifactId>
<version>1.0.0</version>
</dependency>
You may use the String.split()
method:
String[] tokens = str.split(",");
After that, use Double.parseDouble()
method to parse the string value to a double.
double latitude = Double.parseDouble(tokens[0]);
double longitude = Double.parseDouble(tokens[1]);
Similar parse methods exist in the other wrapper classes as well - Integer
, Boolean
, etc.
This approach works for me in SQLite and MySQL. It may work with others, please let me know your experience.
DELETE FROM table
)Code:
$calendarDatabase = new \PDO('sqlite:calendar-of-tasks.db');
$statement = $calendarDatabase->query('SELECT *, COUNT(*) FROM data LIMIT 1');
$columns = array_keys($statement->fetch(PDO::FETCH_ASSOC));
array_pop($columns);
var_dump($columns);
I make no guarantees that this is valid SQL per ANSI or other, but it works for me.
Linux: Remove redundant paths from $PATH variable
Linux From Scratch has this function in /etc/profile
# Functions to help us manage paths. Second argument is the name of the
# path variable to be modified (default: PATH)
pathremove () {
local IFS=':'
local NEWPATH
local DIR
local PATHVARIABLE=${2:-PATH}
for DIR in ${!PATHVARIABLE} ; do
if [ "$DIR" != "$1" ] ; then
NEWPATH=${NEWPATH:+$NEWPATH:}$DIR
fi
done
export $PATHVARIABLE="$NEWPATH"
}
This is intended to be used with these functions for adding to the path, so that you don't do it redundantly:
pathprepend () {
pathremove $1 $2
local PATHVARIABLE=${2:-PATH}
export $PATHVARIABLE="$1${!PATHVARIABLE:+:${!PATHVARIABLE}}"
}
pathappend () {
pathremove $1 $2
local PATHVARIABLE=${2:-PATH}
export $PATHVARIABLE="${!PATHVARIABLE:+${!PATHVARIABLE}:}$1"
}
Simple usage is to just give pathremove
the directory path to remove - but keep in mind that it has to match exactly:
$ pathremove /home/username/anaconda3/bin
This will remove each instance of that directory from your path.
If you want the directory in your path, but without the redundancies, you could just use one of the other functions, e.g. - for your specific case:
$ pathprepend /usr/local/sbin
$ pathappend /usr/local/bin
$ pathappend /usr/sbin
$ pathappend /usr/bin
$ pathappend /sbin
$ pathappend /bin
$ pathappend /usr/games
But, unless readability is the concern, at this point you're better off just doing:
$ export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
I would presume the above to work in sh
, dash
, and bash
at least. I would be surprised to learn it doesn't work in csh
, fish', or
ksh`. I doubt it would work in Windows command shell or Powershell.
If you have Python, the following sort of command should do what is directly asked (that is, remove redundant paths):
$ PATH=$( python -c "
import os
path = os.environ['PATH'].split(':')
print(':'.join(sorted(set(path), key=path.index)))
" )
A one-liner (to sidestep multiline issues):
$ PATH=$( python -c "import os; path = os.environ['PATH'].split(':'); print(':'.join(sorted(set(path), key=path.index)))" )
The above removes later redundant paths. To remove earlier redundant paths, use a reversed list's index and reverse it again:
$ PATH=$( python -c "
import os
path = os.environ['PATH'].split(':')[::-1]
print(':'.join(sorted(set(path), key=path.index, reverse=True)))
" )
If you have a Decimal or similar numeric type, you can use:
Math.Round(myNumber, 2)
EDIT: So, in your case, it would be:
Public Class Form1
Private Sub btncalc_Click(ByVal sender As System.Object,
ByVal e As System.EventArgs) Handles btncalc.Click
txtA.Text = Math.Round((Val(txtD.Text) / Val(txtC.Text) * Val(txtF.Text) / Val(txtE.Text)), 2)
txtB.Text = Math.Round((Val(txtA.Text) * 1000 / Val(txtG.Text)), 2)
End Sub
End Class
form element UI is somewhat controlled by browser and operating system, so it is not trivial to style them very reliably in a way that it would look the same in all common browser/OS combinations.
Instead, if you want something specific, I would recommend to use a library that provides you stylable form elements. uniform.js is one such library.
Found this on OzGrid courtesy of Mr. Aaron Blood - simple direct and works.
Code:
Cells(1, 3).Copy Cells(1, 1)
Cells(1, 1).Value = Cells(1, 3).Value
However, I kinda suspect you were just providing us with an oversimplified example to ask the question. If you just want to copy formats from one range to another it looks like this...
Code:
Cells(1, 3).Copy
Cells(1, 1).PasteSpecial (xlPasteFormats)
Application.CutCopyMode = False
I had named my file dockerfile instead of Dockerfile (capitalized), and once I changed that, it started processing my "Dockerfile".
According to the below article:
http://tools.ietf.org/html/rfc3696 (Page 6, Section 3)
It's mentioned that:
"There is a length limit on email addresses. That limit is a maximum of 64 characters (octets) in the "local part" (before the "@") and a maximum of 255 characters (octets) in the domain part (after the "@") for a total length of 320 characters. Systems that handle email should be prepared to process addresses which are that long, even though they are rarely encountered."
So, the maximum total length for an email address is 320 characters ("local part": 64 + "@": 1 + "domain part": 255 which sums to 320)
If you use moment.js
the you need to load moment-with-locales.min.js
not moment.min.js
. Otherwise, your locale: 'ru'
will not work.
java.lang.NoSuchMethodError: javax.servlet.ServletContext.getContextPath()Ljava/lang/String;
That method was added in Servlet 2.5.
So this problem can have at least 3 causes:
web.xml
is not declared conform Servlet 2.5 or newer.To solve it,
web.xml
complies Servlet 2.5 (or newer, at least the highest whatever your target runtime supports). For an example, see also somewhere halfway our servlets wiki page.servlet-api.jar
or j2ee.jar
in /WEB-INF/lib
or even worse, the JRE/lib
or JRE/lib/ext
. They do not belong there. This is a pretty common beginner's mistake in an attempt to circumvent compilation errors in an IDE, see also How do I import the javax.servlet API in my Eclipse project?.get()
returns a single object. If there is no existing object to return, you will receive <class>.DoesNotExist
. If your query returns more than one object, then you will get MultipleObjectsReturned
. You can check here for more details about get() queries.
Similarly, Django will complain if more than one item matches the get() query. In this case, it will raise MultipleObjectsReturned, which again is an attribute of the model class itself.
M2M will return any number of query that it is related to. In this case you can receive zero, one or more items with your query.
In your models you can us following:
for _topic in topic.objects.all():
_topic.learningobjective_set.all()
you can use _set
to execute a select query on M2M. In above case, you will filter all learningObjective
s related to each topic
In the interest of providing a different answer from the ones above; you could check it with Object.hasOwnProperty(...)
like this:
if( $("#dataTable").data().hasOwnProperty("timer") ){
// the data-time property exists, now do you business! .....
}
alternatively, if you have multiple data elements you want to iterate over you can variablize the .data()
object and iterate over it like this:
var objData = $("#dataTable").data();
for ( data in objData ){
if( data == 'timer' ){
//...do the do
}
}
Not saying this solution is better than any of the other ones in here, but at least it's another approach...
Suppose there are 3 non-negative integers: a
, b
, and c
. Mathematically speaking, if we want to determine if c
is between a
and b
, inclusively, one can use this formula:
(c - a) * (b - c) >= 0
or in Python:
> print((c - a) * (b - c) >= 0)
True
Python lists are mutable objects and here:
plot_data = [[]] * len(positions)
you are repeating the same list len(positions)
times.
>>> plot_data = [[]] * 3
>>> plot_data
[[], [], []]
>>> plot_data[0].append(1)
>>> plot_data
[[1], [1], [1]]
>>>
Each list in your list is a reference to the same object. You modify one, you see the modification in all of them.
If you want different lists, you can do this way:
plot_data = [[] for _ in positions]
for example:
>>> pd = [[] for _ in range(3)]
>>> pd
[[], [], []]
>>> pd[0].append(1)
>>> pd
[[1], [], []]
Just uncomment below line from RouteServiceProvider
(If does not exists then add)
protected $namespace = 'App\\Http\\Controllers';
There is a way to mount a volume during a build, but it doesn't involve Dockerfiles.
The technique would be to create a container from whatever base you wanted to use (mounting your volume(s) in the container with the -v
option), run a shell script to do your image building work, then commit the container as an image when done.
Not only will this leave out the excess files you don't want (this is good for secure files as well, like SSH files), it also creates a single image. It has downsides: the commit command doesn't support all of the Dockerfile instructions, and it doesn't let you pick up when you left off if you need to edit your build script.
UPDATE:
For example,
CONTAINER_ID=$(docker run -dit ubuntu:16.04)
docker cp build.sh $CONTAINER_ID:/build.sh
docker exec -t $CONTAINER_ID /bin/sh -c '/bin/sh /build.sh'
docker commit $CONTAINER_ID $REPO:$TAG
docker stop $CONTAINER_ID
Windows c c++ 10% C# Perl Linux C MAC Obective c Android Java c++ Solaris c c++
I hope you get the answer.
Do not use fixed or an explicit width or height to the image tag. Instead, code it:
max-width:100%;
max-height:100%;
validation is working with ng repeat if I use the following syntax scope.step3Form['item[107][quantity]'].$touched
I don't know it's a best practice or the best solution, but it works
<tr ng-repeat="item in items">
<td>
<div class="form-group">
<input type="text" ng-model="item.quantity" name="item[<% item.id%>][quantity]" required="" class="form-control" placeholder = "# of Units" />
<span ng-show="step3Form.$submitted || step3Form['item[<% item.id %>][quantity]'].$touched">
<span class="help-block" ng-show="step3Form['item[<% item.id %>][quantity]'].$error.required"> # of Units is required.</span>
</span>
</div>
</td>
</tr>
As other answers mentioned, git config -l
lists all your configuration details from your config file. Here's a partial example of that output for my configuration:
...
alias.force=push -f
alias.wd=diff --color-words
alias.shove=push -f
alias.gitignore=!git ls-files -i --exclude-from=.gitignore | xargs git rm --cached
alias.branches=!git remote show origin | grep \w*\s*(new^|tracked) -E
core.repositoryformatversion=0
core.filemode=false
core.bare=false
...
So we can grep out the alias lines, using git config -l | grep alias
:
alias.force=push -f
alias.wd=diff --color-words
alias.shove=push -f
alias.gitignore=!git ls-files -i --exclude-from=.gitignore | xargs git rm --cached
alias.branches=!git remote show origin | grep \w*\s*(new^|tracked) -E
We can make this prettier by just cut
ting out the alias.
part of each line, leaving us with this command:
git config -l | grep alias | cut -c 7-
Which prints:
force=push -f
wd=diff --color-words
shove=push -f
gitignore=!git ls-files -i --exclude-from=.gitignore | xargs git rm --cached
branches=!git remote show origin | grep \w*\s*(new^|tracked) -E
Lastly, don't forget to add this as an alias:
git config --global alias.la "!git config -l | grep alias | cut -c 7-"
Enjoy!
@fork2x
I have tried like this .Please review and update me whether it is right approach or not.
#/bin/sh
function pause(){
read -p "$*"
}
file="./apptest.properties"
if [ -f "$file" ]
then
echo "$file found."
dbUser=`sed '/^\#/d' $file | grep 'db.uat.user' | tail -n 1 | cut -d "=" -f2- | sed 's/^[[:space:]]*//;s/[[:space:]]*$//'`
dbPass=`sed '/^\#/d' $file | grep 'db.uat.passwd' | tail -n 1 | cut -d "=" -f2- | sed 's/^[[:space:]]*//;s/[[:space:]]*$//'`
echo database user = $dbUser
echo database pass = $dbPass
else
echo "$file not found."
fi
I have found a workaround for this on MySql databases using @PostConstruct and JdbcTemplate in a Spring application. It may be doable with other databases but the use case that I will present is based on my experience with MySql, as it uses auto_increment.
First, I had tried defining a column as auto_increment using the ColumnDefinition property of the @Column annotation, but it was not working as the column needed to be an key in order to be auto incremental, but apparently the column wouldn't be defined as an index until after it was defined, causing a deadlock.
Here is where I came with the idea of creating the column without the auto_increment definition, and adding it after the database was created. This is possible using the @PostConstruct annotation, which causes a method to be invoked right after the application has initialized the beans, coupled with JdbcTemplate's update method.
The code is as follows:
In My Entity:
@Entity
@Table(name = "MyTable", indexes = { @Index(name = "my_index", columnList = "mySequencedValue") })
public class MyEntity {
//...
@Column(columnDefinition = "integer unsigned", nullable = false, updatable = false, insertable = false)
private Long mySequencedValue;
//...
}
In a PostConstructComponent class:
@Component
public class PostConstructComponent {
@Autowired
private JdbcTemplate jdbcTemplate;
@PostConstruct
public void makeMyEntityMySequencedValueAutoIncremental() {
jdbcTemplate.update("alter table MyTable modify mySequencedValue int unsigned auto_increment");
}
}
another workaround:
var myarray = [];
$("#test").click(function() {
myarray[index]=$("#drop").val();
alert(myarray);
});
i wanted to add all checked checkbox to array. so example, if .each is used:
var vpp = [];
var incr=0;
$('.prsn').each(function(idx) {
if (this.checked) {
var p=$('.pp').eq(idx).val();
vpp[incr]=(p);
incr++;
}
});
//do what ever with vpp array;
Just about every modern operating system will recover all the allocated memory space after a program exits. The only exception I can think of might be something like Palm OS where the program's static storage and runtime memory are pretty much the same thing, so not freeing might cause the program to take up more storage. (I'm only speculating here.)
So generally, there's no harm in it, except the runtime cost of having more storage than you need. Certainly in the example you give, you want to keep the memory for a variable that might be used until it's cleared.
However, it's considered good style to free memory as soon as you don't need it any more, and to free anything you still have around on program exit. It's more of an exercise in knowing what memory you're using, and thinking about whether you still need it. If you don't keep track, you might have memory leaks.
On the other hand, the similar admonition to close your files on exit has a much more concrete result - if you don't, the data you wrote to them might not get flushed, or if they're a temp file, they might not get deleted when you're done. Also, database handles should have their transactions committed and then closed when you're done with them. Similarly, if you're using an object oriented language like C++ or Objective C, not freeing an object when you're done with it will mean the destructor will never get called, and any resources the class is responsible might not get cleaned up.
The documentation for this is good if not a little difficult to find.
Facebook Graph API - Page Tokens
After initializing node's fbgraph, you can run:
var facebookAccountID = yourAccountIdHere
graph
.setOptions(options)
.get(facebookAccountId + "/accounts", function(err, res) {
console.log(res);
});
and receive a JSON response with the token you want to grab, located at:
res.data[0].access_token
Not sure if I understand your question correctly, but provided that you can call the Python executable from the console and just want to capture its output in Java, you can use the exec()
method in the Java Runtime
class.
Process p = Runtime.getRuntime().exec("python yourapp.py");
You can read up on how to actually read the output here:
http://www.devdaily.com/java/edu/pj/pj010016
There is also an Apache library (the Apache exec project) that can help you with this. You can read more about it here:
http://www.devdaily.com/java/java-exec-processbuilder-process-1
Using display: inline-flex
#menu ul {_x000D_
list-style: none;_x000D_
margin: 0;_x000D_
padding: 0;_x000D_
display: inline-flex_x000D_
}
_x000D_
<div id="menu">_x000D_
<ul>_x000D_
<li>1 menu item</li>_x000D_
<li>2 menu item</li>_x000D_
<li>3 menu item</li>_x000D_
</ul>_x000D_
</div>
_x000D_
Using display: inline-block
#menu ul {_x000D_
list-style: none;_x000D_
margin: 0;_x000D_
padding: 0;_x000D_
}_x000D_
_x000D_
#menu li {_x000D_
display: inline-block;_x000D_
}
_x000D_
<div id="menu">_x000D_
<ul>_x000D_
<li>1 menu item</li>_x000D_
<li>2 menu item</li>_x000D_
<li>3 menu item</li>_x000D_
</ul>_x000D_
</div>
_x000D_
No, registering an object takes a bit of memory too. 100 objects with 1 attribute will take up more memory.
Here's an example activity that will launch the camera app and then retrieve the image and display it.
package edu.gvsu.cis.masl.camerademo;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
public class MyCameraActivity extends Activity
{
private static final int CAMERA_REQUEST = 1888;
private ImageView imageView;
private static final int MY_CAMERA_PERMISSION_CODE = 100;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
this.imageView = (ImageView)this.findViewById(R.id.imageView1);
Button photoButton = (Button) this.findViewById(R.id.button1);
photoButton.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View v)
{
if (checkSelfPermission(Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED)
{
requestPermissions(new String[]{Manifest.permission.CAMERA}, MY_CAMERA_PERMISSION_CODE);
}
else
{
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(cameraIntent, CAMERA_REQUEST);
}
}
});
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults)
{
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if (requestCode == MY_CAMERA_PERMISSION_CODE)
{
if (grantResults[0] == PackageManager.PERMISSION_GRANTED)
{
Toast.makeText(this, "camera permission granted", Toast.LENGTH_LONG).show();
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(cameraIntent, CAMERA_REQUEST);
}
else
{
Toast.makeText(this, "camera permission denied", Toast.LENGTH_LONG).show();
}
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
if (requestCode == CAMERA_REQUEST && resultCode == Activity.RESULT_OK)
{
Bitmap photo = (Bitmap) data.getExtras().get("data");
imageView.setImageBitmap(photo);
}
}
}
Note that the camera app itself gives you the ability to review/retake the image, and once an image is accepted, the activity displays it.
Here is the layout that the above activity uses. It is simply a LinearLayout containing a Button with id button1 and an ImageView with id imageview1:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<Button android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/photo"></Button>
<ImageView android:id="@+id/imageView1" android:layout_height="wrap_content" android:src="@drawable/icon" android:layout_width="wrap_content"></ImageView>
</LinearLayout>
And one final detail, be sure to add:
<uses-feature android:name="android.hardware.camera"></uses-feature>
and if camera is optional to your app functionality. make sure to set require to false in the permission. like this
<uses-feature android:name="android.hardware.camera" android:required="false"></uses-feature>
to your manifest.xml.
SELECT CAST(GETDATE() AS DATE)
Returns the current date with the time part removed.
DATETIME
s are not "stored in the following format". They are stored in a binary format.
SELECT CAST(GETDATE() AS BINARY(8))
The display format in the question is independent of storage.
Formatting into a particular display format should be done by your application.
There are two easy methods:
\
before double quotes.''
instead of "
For example:
System.out.println("\"Hello\"");
System.out.println("''Hello''");
I just wish to add one important detail to the answers above. And it is that even if you import the projects from your chosen root directory they may not appear in bold so you won't be able to select them. The reason for this may be that the metadata of the projects is corrupted. If you do encounter this problem then the easiest and quickest way to fix it is to rid yourself of the workspace-folder and create a new one and copy+paste your projects (do it before you erase the old workspace) folders to this new workspace. Then, in your new worskapce, import the projects as the previous posts have explained.
Acoording to RFC 2046 (Multipurpose Internet Mail Extensions):
The recommended action for an implementation that receives an
"application/octet-stream" entity is to simply offer to put the data in a file
So I'd go for that one.
Use jQuery $(document)
function...
$(document).ready(function(){
var margin = {top: 20, right: 20, bottom: 30, left: 40},
width = 960 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
var x0 = d3.scale.ordinal()
.rangeRoundBands([0, width], .1);
var x1 = d3.scale.ordinal();
var y = d3.scale.linear()
.range([height, 0]);
var color = d3.scale.ordinal()
.range(["#98abc5", "#8a89a6", "#7b6888", "#6b486b", "#a05d56", "#d0743c", "#ff8c00"]);
var xAxis = d3.svg.axis()
.scale(x0)
.orient("bottom");
var yAxis = d3.svg.axis()
.scale(y)
.orient("left")
.tickFormat(d3.format(".2s"));
//d3.select('#chart svg')
//d3.select("body").append("svg")
//var svg = d3.select("#chart").append("svg:svg");
var svg = d3.select("#BarChart").append("svg:svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
var updateData = function(getData){
d3.selectAll('svg > g > *').remove();
d3.csv(getData, function(error, data) {
if (error) throw error;
var ageNames = d3.keys(data[0]).filter(function(key) { return key !== "State"; });
data.forEach(function(d) {
d.ages = ageNames.map(function(name) { return {name: name, value: +d[name]}; });
});
x0.domain(data.map(function(d) { return d.State; }));
x1.domain(ageNames).rangeRoundBands([0, x0.rangeBand()]);
y.domain([0, d3.max(data, function(d) { return d3.max(d.ages, function(d) { return d.value; }); })]);
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis);
svg.append("g")
.attr("class", "y axis")
.call(yAxis)
.append("text")
.attr("transform", "rotate(-90)")
.attr("y", 6)
.attr("dy", ".71em")
.style("text-anchor", "end")
.text("Population");
var state = svg.selectAll(".state")
.data(data)
.enter().append("g")
.attr("class", "state")
.attr("transform", function(d) { return "translate(" + x0(d.State) + ",0)"; });
state.selectAll("rect")
.data(function(d) { return d.ages; })
.enter().append("rect")
.attr("width", x1.rangeBand())
.attr("x", function(d) { return x1(d.name); })
.attr("y", function(d) { return y(d.value); })
.attr("height", function(d) { return height - y(d.value); })
.style("fill", function(d) { return color(d.name); });
var legend = svg.selectAll(".legend")
.data(ageNames.slice().reverse())
.enter().append("g")
.attr("class", "legend")
.attr("transform", function(d, i) { return "translate(0," + i * 20 + ")"; });
legend.append("rect")
.attr("x", width - 18)
.attr("width", 18)
.attr("height", 18)
.style("fill", color);
legend.append("text")
.attr("x", width - 24)
.attr("y", 9)
.attr("dy", ".35em")
.style("text-anchor", "end")
.text(function(d) { return d; });
});
}
updateData('data1.csv');
});
It's written as:
def my_function(self, param_one=None): # Or custom sentinel if None is vaild
if param_one is None:
param_one = self.one_of_the_vars
And I think it's safe to say that will never happen in Python due to the nature that self
doesn't really exist until the function starts... (you can't reference it, in its own definition - like everything else)
For example: you can't do d = {'x': 3, 'y': d['x'] * 5}
function download(text, name, type) {_x000D_
var a = document.getElementById("a");_x000D_
var file = new Blob([text], {type: type});_x000D_
a.href = URL.createObjectURL(file);_x000D_
a.download = name;_x000D_
}
_x000D_
<a href="" id="a">click here to download your file</a>_x000D_
<button onclick="download('file text', 'myfilename.json', 'text/json')">Create file</button>
_x000D_
I think this can work with json files too if you change the mime type.
For me I found the solution after a lot of try which is replacing
HttpClient
with
System.Net.Http.HttpClient
In my windows machine, I solved this by adding the below code snippet in rules
object of .eslintrc.js
file present in my current project's directory.
"prettier/prettier": [
"error",
{
"endOfLine": "auto"
},
],
This worked on my Mac as well