Invoke-Expression
should work perfectly, just make sure you are using it correctly. For your case it should look like this:
Invoke-Expression "$scriptPath $argumentList"
I tested this approach with Get-Service and seems to be working as expected.
My solution to this was to write the script block dynamically with [scriptblock]:Create
:
# Or build a complex local script with MARKERS here, and do substitutions
# I was sending install scripts to the remote along with MSI packages
# ...for things like Backup and AV protection etc.
$p1 = "good stuff"; $p2 = "better stuff"; $p3 = "best stuff"; $etc = "!"
$script = [scriptblock]::Create("MyScriptOnRemoteServer.ps1 $p1 $p2 $etc")
#strings get interpolated/expanded while a direct scriptblock does not
# the $parms are now expanded in the script block itself
# ...so just call it:
$result = invoke-command $computer -script $script
Passing arguments was very frustrating, trying various methods, e.g.,
-arguments
, $using:p1
, etc. and this just worked as desired with no problems.
Since I control the contents and variable expansion of the string which creates the [scriptblock]
(or script file) this way, there is no real issue with the "invoke-command" incantation.
(It shouldn't be that hard. :) )
You can use tf.pack (tf.stack in TensorFlow 1.0.0) method for this purpose. Here is how to pack a random image of type numpy.ndarray
into a Tensor
:
import numpy as np
import tensorflow as tf
random_image = np.random.randint(0,256, (300,400,3))
random_image_tensor = tf.pack(random_image)
tf.InteractiveSession()
evaluated_tensor = random_image_tensor.eval()
UPDATE: to convert a Python object to a Tensor you can use tf.convert_to_tensor function.
For Windows users w/o using Andoid Studio:
Go to the location of your sdkmanager.bat
file. Per default it is at Android\sdk\tools\bin
inside the %LOCALAPPDATA%
folder.
Open a terminal window there by typing cmd into the title bar
Type
sdkmanager.bat --licenses
Accept all licenses with 'y'
Just another hack can be like this.
I have Array of strings which I need to concatenate. So I added that array into dictionary and then used it inside for loop which worked.
{% set dict1 = {'e':''} %}
{% for i in list1 %}
{% if dict1.update({'e':dict1.e+":"+i+"/"+i}) %} {% endif %}
{% endfor %}
{% set layer_string = dict1['e'] %}
if("123".search(/^\d+$/) >= 0){
// its a number
}
Same like "Jayantha" said using css would be the easiest approach, but this might be better,
.ui-autocomplete { max-height: 200px; overflow-y: scroll; overflow-x: hidden;}
Note the only difference is "max-height". this will allow the widget to resize to smaller height but not more than 200px
$(document).ready(function(){
$("#HoursEntry").change(function(){
var HoursEntry = $(#HoursEntry option:selected).val();
if(HoursEntry == "")
{
$("#HoursEntry").html("Please select");
return false;
}
});
});
Did you try this tip?
Or better still, use ipython, and call:
from IPython.Debugger import Tracer; debug_here = Tracer()
then you can just use
debug_here()
whenever you want to set a breakpoint
Just add data-html="true"
<a href="#" title="Some long text <br/> Second line text \n Third line text" data-html="true">Hover me</a>
In case you are using Xcode beta, run
sudo xcode-select --switch /Applications/Xcode-beta.app/Contents/Developer
instead of
sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer
You can also specify the range with the coord_cartesian command to set the y-axis range that you want, an like in the previous post use scales = free_x
p <- ggplot(plot, aes(x = pred, y = value)) +
geom_point(size = 2.5) +
theme_bw()+
coord_cartesian(ylim = c(-20, 80))
p <- p + facet_wrap(~variable, scales = "free_x")
p
.git/HEAD
contains the path of the current ref, the working directory is using as HEAD.
download the extension from microsoft and install to remove GIT extension from Visual studio and SSMS.
https://marketplace.visualstudio.com/items?itemName=MarkRendle.NoGit
SSMS: Edit the ssms.pkgundef file found at C:\Program Files (x86)\Microsoft SQL Server\130\Tools\Binn\ManagementStudio\ssms.pkgundef and remove all git related entries
Be careful if you are working on localhost ! If you store your cookie in js like this:
document.cookie = "key=value;domain=localhost"
It might not be accessible to your subdomain, like sub.localhost
. In order to solve this issue you need to use Virtual Host. For exemple you can configure your virtual host with ServerName
localhost.com
then you will be able to store your cookie on your domain and subdomain like this:
document.cookie = "key=value;domain=localhost.com"
curl -H "Access-Control-Request-Method: GET" -H "Origin: http://localhost" --head http://www.example.com/
Access-Control-Allow-*
then your resource supports CORS.Rationale for alternative answer
I google this question every now and then and the accepted answer is never what I need. First it prints response body which is a lot of text. Adding --head
outputs only headers. Second when testing S3 URLs we need to provide additional header -H "Access-Control-Request-Method: GET"
.
Hope this will save time.
Your ProfileDto
class is not referenced in SearchResultDto
. Try adding @XmlSeeAlso(ProfileDto.class)
to SearchResultDto
.
You have to use attachEvent
in IE versions prior to IE9. Detect whether addEventListener
is defined and use attachEvent
if it isn't:
if(_checkbox.addEventListener)
_checkbox.addEventListener("click",setCheckedValues,false);
else
_checkbox.attachEvent("onclick",setCheckedValues);
// ^^ -- onclick, not click
Note that IE11 will remove attachEvent
.
See also:
To improve on jm's answer...
// Access whole scope
angular.element(myDomElement).scope();
// Access and change variable in scope
angular.element(myDomElement).scope().myVar = 5;
angular.element(myDomElement).scope().myArray.push(newItem);
// Update page to reflect changed variables
angular.element(myDomElement).scope().$apply();
Or if you're using jQuery, this does the same thing...
$('#elementId').scope();
$('#elementId').scope().$apply();
Another easy way to access a DOM element from the console (as jm mentioned) is to click on it in the 'elements' tab, and it automatically gets stored as $0
.
angular.element($0).scope();
The accepted answer here is correct but I'd like to add a little info. If you are using a library / framework like bootstrap there may be built in classes for this. For example bootstrap uses the text-right
class. Use it like this:
<input type="text" class="text-right"/>
<input type="number" class="text-right"/>
As a note this works on other input types as well, like numeric as shown above.
If you aren't using a nice framework like bootstrap then you can make your own version of this helper class. Similar to other answers but we are not going to add it directly to the input class so it won't apply to every single input on your site or page, this might not be desired behavior. So this would create a nice easy css class to align things right without needing inline styling or affecting every single input box.
.text-right{
text-align: right;
}
Now you can use this class exactly the same as the inputs above with class="text-right"
. I know it isn't saving that many key strokes but it makes your code cleaner.
Angular 1.3 provides $watchGroup specifically for this purpose:
https://docs.angularjs.org/api/ng/type/$rootScope.Scope#$watchGroup
This seems to provide the same ultimate result as a standard $watch on an array of expressions. I like it because it makes the intention clearer in the code.
For me works using &autoplay=1&mute=1
echo "<pre>";
print_r($this->session->all_userdata());
echo "</pre>";
Display yet formatting then you can view properly.
context.getImageData(x, y, 1, 1).data;
returns an rgba array. e.g. [50, 50, 50, 255]
Here's a version of @lwburk's rgbToHex function that takes the rgba array as an argument.
function rgbToHex(rgb){
return '#' + ((rgb[0] << 16) | (rgb[1] << 8) | rgb[2]).toString(16);
};
Usually, best is to see a character in his context.
Here is the full list of Unicode chars, and how your browser currently displays them. I am seeing this list evolving, browser versions after others.
This list is obtained by iteration in decimal of the html entities unicode table, it may take some seconds, but is very useful to me in many cases.
By hovering quickly a given char you will get the dec and hex and the shortcuts to generate it with a keyboard.
var i = 0
do document.write("<a title='(Linux|Hex): [CTRL+SHIFT]+u"+(i).toString(16)+"\nHtml entity: &# "+i+";\n&#x"+(i).toString(16)+";\n(Win|Dec): [ALT]+"+i+"' onmouseover='this.focus()' onclick='this.href=\"//google.com/?q=\"+this.innerHTML' style='cursor:pointer' target='new'>"+"&#"+i+";</a>"),i++
while (i<136690)
window.stop()
// From https://codepen.io/Nico_KraZhtest/pen/mWzXqy
_x000D_
The same snippet as a bookmarklet:
javascript:void%20!function(){var%20t=0;do{document.write(%22%3Ca%20title='(Linux|Hex):%20[CTRL+SHIFT]+u%22+t.toString(16)+%22\nHtml%20entity:%20%26%23%20%22+t+%22;\n%26%23x%22+t.toString(16)+%22;\n(Win|Dec):%20[ALT]+%22+t+%22'%20onmouseover='this.focus()'%20onclick='this.href=\%22https://google.com/%3Fq=\%22+this.innerHTML'%20style='cursor:pointer'%20target='new'%3E%26%23%22+t+%22;%3C/a%3E%22),t++}while(t%3C136690);window.stop()}();
To generate that list from php:
for ($x = 0; $x < 136690; $x++) {
echo html_entity_decode('&#'.$x.';',ENT_NOQUOTES,'UTF-8');
}
To generate that list into the console, using php:
php -r 'for ($x = 0; $x < 136690; $x++) { echo html_entity_decode("&#".$x.";",ENT_NOQUOTES,"UTF-8");}'
Here is a plain text extract, of arrows, some are coming with unicode 10.0. http://unicode.org/versions/Unicode10.0.0/
Unicode 10.0 adds 8,518 characters, for a total of 136,690 characters.
???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
Hey, did you notice the plain html <details>
element has a drop down arrow? This is sometimes all what we need.
<details>
<summary>Morning</summary>
<p>Hello world!</p>
</details>
<details>
<summary>Evening</summary>
<p>How sweat?</p>
</details>
_x000D_
Can't believe, this won't execute in SQL Developer:
var r refcursor;
exec PCK.SOME_SP(:r,
'02619857');
print r;
BUT this will:
var r refcursor;
exec TAPI_OVLASCENJA.ARH_SELECT_NAKON_PRESTANKA_REG(:r, '02619857');
print r;
Obviously everything has to be in one line..
I had this problem (colons in the target name) because I had -n
in my GREP_OPTIONS
environment variable. Apparently, this caused configure
to generate the Makefile
incorrectly.
I had the same issue and it had solved using two command lines:
sudo apt install php-zip
then reboot your web server, for Apache
sudo service apache2 restart
For People, looking for answers w.r.t to 'map' function and dynamic data, here is a working example.
<img src={"http://examole.com/randomview/images" + each_actor['logo']} />
This gives the URL as "http://examole.com/randomview/images/2/dp_pics/182328.jpg" (random example)
What is the full source of the file Mysql.php
. Based on the output of the php info list, it sounds like you may be trying to reference a global class from within a namespace.
If the file Mysql.php
has a statement "namespace " in it, use \PDO
in place of PDO
- this will tell PHP to look for a global class, rather than looking in the local namespace.
This is what is did that solved the same problem. I solved it by creating a function that returns the query result thus:
function getUsers(){
$query = $this->db->get('users');
return $query->result();
}
//The above code can go in the user_model or whatever your model is.
This allows me to use one function for the result and number of returned rows.
Use this code below in your contoller where you need the count as well as the result array().
//This gives you the user count using the count function which returns and integer of the exact rows returned from the query.
$this->data['user_count'] = count($this->user_model->getUsers());
//This gives you the returned result array.
$this->data['users'] = $this->user_model->getUsers();
I hope this helps.
If you are running Spark with HDFS, I've been solving the problem by writing csv files normally and leveraging HDFS to do the merging. I'm doing that in Spark (1.6) directly:
import org.apache.hadoop.conf.Configuration
import org.apache.hadoop.fs._
def merge(srcPath: String, dstPath: String): Unit = {
val hadoopConfig = new Configuration()
val hdfs = FileSystem.get(hadoopConfig)
FileUtil.copyMerge(hdfs, new Path(srcPath), hdfs, new Path(dstPath), true, hadoopConfig, null)
// the "true" setting deletes the source files once they are merged into the new output
}
val newData = << create your dataframe >>
val outputfile = "/user/feeds/project/outputs/subject"
var filename = "myinsights"
var outputFileName = outputfile + "/temp_" + filename
var mergedFileName = outputfile + "/merged_" + filename
var mergeFindGlob = outputFileName
newData.write
.format("com.databricks.spark.csv")
.option("header", "false")
.mode("overwrite")
.save(outputFileName)
merge(mergeFindGlob, mergedFileName )
newData.unpersist()
Can't remember where I learned this trick, but it might work for you.
ax.title.set_text('My Plot Title')
seems to work too.
fig = plt.figure()
ax1 = fig.add_subplot(221)
ax2 = fig.add_subplot(222)
ax3 = fig.add_subplot(223)
ax4 = fig.add_subplot(224)
ax1.title.set_text('First Plot')
ax2.title.set_text('Second Plot')
ax3.title.set_text('Third Plot')
ax4.title.set_text('Fourth Plot')
plt.show()
I'm going to make some bold guesses here...
I assume they have a layout that represents the menu that is not visible. When the menu button is tapped, they animate the layout/view on top to move out of the way, and simply enable the visibility of the menu layout. I have not thought about this causing any sort of z-index issues in the views, or how they control that.
According to the Apple Human Interface Guidelines:
@1x : about 25 x 25 (max: 48 x 32)
@2x : about 50 x 50 (max: 96 x 64)
@3x : about 75 x 75 (max: 144 x 96)
For anybody reading this in the future, here is a simpler answer:
var s = "11:41:02PM";
var time = s.match(/\d{2}/g);
if (time[0] === "12") time[0] = "00";
if (s.indexOf("PM") > -1) time[0] = parseInt(time[0])+12;
return time.join(":");
I guess you mean this:
class Value:
def __init__(self, v=None):
self.v = v
v1 = Value(1)
v2 = Value(2)
d = {'a': v1, 'b': v1, 'c': v2, 'd': v2}
d['a'].v += 1
d['b'].v == 2 # True
d['a']
and d['b']
to point to the same value that "updates" as it changes, make the value refer to a mutable object (user-defined class like above, or a dict
, list
, set
).d['a']
, d['b']
changes at same time because they both point to same object.To install this product you can see this tutorial: OpenCV on Ubuntu
There are listed the packages you need. So, with:
# dpkg -l | grep libcv2
# dpkg -l | grep libhighgui2
and more listed in the url you can find which packages are installed.
With
# dpkg -L libcv2
you can check where are installed
This operative is used for all debian packages.
If you are using Bootstrap 4, and you don't want to change your markup:
var $myGroup = $('#myGroup');
$myGroup.on('show.bs.collapse','.collapse', function() {
$myGroup.find('.collapse.show').collapse('hide');
});
I was having the same trouble and I did
pip install pygame
and that worked for me!
The claims that you have to mock it at the top of your file are false.
Mock a named ES Import:
// import the named module
import { useWalkthroughAnimations } from '../hooks/useWalkthroughAnimations';
// mock the file and its named export
jest.mock('../hooks/useWalkthroughAnimations', () => ({
useWalkthroughAnimations: jest.fn()
}));
// do whatever you need to do with your mocked function
useWalkthroughAnimations.mockReturnValue({ pageStyles, goToNextPage, page });
myFunction(
contextParamers : {
param1: any,
param2: string
param3: string
}){
contextParamers.param1 = contextParamers.param1+ 'canChange';
//contextParamers.param4 = "CannotChange";
var contextParamers2 : any = contextParamers;// lost the typescript on the new object of type any
contextParamers2.param4 = 'canChange';
return contextParamers2;
}
You are sending a array of string
var usersRoles = [];
jQuery("#dualSelectRoles2 option").each(function () {
usersRoles.push(jQuery(this).val());
});
So change model type accordingly
public ActionResult AddUser(List<string> model)
{
}
I deleted the command tools directory given by xcode-select -p due to npm gyp error.
xcode-select failed to install the files with the not available error.
I ran the Xcode application and the command tools installed as part of the startup.
npm worked.
However this didn't fully fix the tools. I had to use xcode-select to switch the path to the Developer directory within the Xcode application directory.
sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer
MacOS catalina.
Another difference between bool and BOOL is that they do not convert exactly to the same kind of objects, when you do key-value observing, or when you use methods like -[NSObject valueForKey:].
As everybody has said here, BOOL is char. As such, it is converted to an NSNumber holding a char. This object is indistinguishable from an NSNumber created from a regular char like 'A' or '\0'. You have totally lost the information that you originally had a BOOL.
However, bool is converted to an CFBoolean, which behaves the same as NSNumber, but which retains the boolean origin of the object.
I do not think that this is an argument in a BOOL vs. bool debate, but this may bite you one day.
Generally speaking, you should go with BOOL, since this is the type used everywhere in the Cocoa/iOS APIs (designed before C99 and its native bool type).
How are you generating your data?
See how the output shows that your data is of 'object' type? the groupby operations specifically check whether each column is a numeric dtype first.
In [31]: data
Out[31]:
<class 'pandas.core.frame.DataFrame'>
DatetimeIndex: 2557 entries, 2004-01-01 00:00:00 to 2010-12-31 00:00:00
Freq: <1 DateOffset>
Columns: 360 entries, -89.75 to 89.75
dtypes: object(360)
look ?
Did you initialize an empty DataFrame first and then filled it? If so that's probably why it changed with the new version as before 0.9 empty DataFrames were initialized to float type but now they are of object type. If so you can change the initialization to DataFrame(dtype=float)
.
You can also call frame.astype(float)
Set your ImageView by selecting Mode to Aspect Fill
and check the Clip Subviews
box.
The following will give you the hex encoding for the low byte of each character, which looks like what you're asking for:
StringBuilder sb = new StringBuilder();
foreach (char c in asciiString)
{
uint i = (uint)c;
sb.AppendFormat("{0:X2}", (i & 0xff));
}
return sb.ToString();
You can do base64 encoding and decoding with simple javascript.
$("input").keyup(function () {
var value = $(this).val(),
hash = Base64.encode(value);
$(".test").html(hash);
var decode = Base64.decode(hash);
$(".decode").html(decode);
});
var Base64={_keyStr:"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",encode:function(e){var t="";var n,r,i,s,o,u,a;var f=0;e=Base64._utf8_encode(e);while(f<e.length){n=e.charCodeAt(f++);r=e.charCodeAt(f++);i=e.charCodeAt(f++);s=n>>2;o=(n&3)<<4|r>>4;u=(r&15)<<2|i>>6;a=i&63;if(isNaN(r)){u=a=64}else if(isNaN(i)){a=64}t=t+this._keyStr.charAt(s)+this._keyStr.charAt(o)+this._keyStr.charAt(u)+this._keyStr.charAt(a)}return t},decode:function(e){var t="";var n,r,i;var s,o,u,a;var f=0;e=e.replace(/[^A-Za-z0-9+/=]/g,"");while(f<e.length){s=this._keyStr.indexOf(e.charAt(f++));o=this._keyStr.indexOf(e.charAt(f++));u=this._keyStr.indexOf(e.charAt(f++));a=this._keyStr.indexOf(e.charAt(f++));n=s<<2|o>>4;r=(o&15)<<4|u>>2;i=(u&3)<<6|a;t=t+String.fromCharCode(n);if(u!=64){t=t+String.fromCharCode(r)}if(a!=64){t=t+String.fromCharCode(i)}}t=Base64._utf8_decode(t);return t},_utf8_encode:function(e){e=e.replace(/rn/g,"n");var t="";for(var n=0;n<e.length;n++){var r=e.charCodeAt(n);if(r<128){t+=String.fromCharCode(r)}else if(r>127&&r<2048){t+=String.fromCharCode(r>>6|192);t+=String.fromCharCode(r&63|128)}else{t+=String.fromCharCode(r>>12|224);t+=String.fromCharCode(r>>6&63|128);t+=String.fromCharCode(r&63|128)}}return t},_utf8_decode:function(e){var t="";var n=0;var r=c1=c2=0;while(n<e.length){r=e.charCodeAt(n);if(r<128){t+=String.fromCharCode(r);n++}else if(r>191&&r<224){c2=e.charCodeAt(n+1);t+=String.fromCharCode((r&31)<<6|c2&63);n+=2}else{c2=e.charCodeAt(n+1);c3=e.charCodeAt(n+2);t+=String.fromCharCode((r&15)<<12|(c2&63)<<6|c3&63);n+=3}}return t}}
// Define the string
var string = 'Hello World!';
// Encode the String
var encodedString = Base64.encode(string);
console.log(encodedString); // Outputs: "SGVsbG8gV29ybGQh"
// Decode the String
var decodedString = Base64.decode(encodedString);
console.log(decodedString); // Outputs: "Hello World!"</script></div>
This is implemented in this Base64 encoder decoder
uint32_t
is defined in the standard, in
<cstdint>
synopsis [cstdint.syn]namespace std {
//...
typedef unsigned integer type uint32_t; // optional
//...
}
uint32
is not, it's a shortcut provided by some compilers (probably as typedef uint32_t uint32
) for ease of use.
You can simply use javascript like this. Otherwise you can use momentJs Plugin which helps in large application.
new Date().getDate() // Get the day as a number (1-31)
new Date().getDay() // Get the weekday as a number (0-6)
new Date().getFullYear() // Get the four digit year (yyyy)
new Date().getHours() // Get the hour (0-23)
new Date().getMilliseconds() // Get the milliseconds (0-999)
new Date().getMinutes() // Get the minutes (0-59)
new Date().getMonth() // Get the month (0-11)
new Date().getSeconds() // Get the seconds (0-59)
new Date().getTime() // Get the time (milliseconds since January 1, 1970)
function generate(type,element)_x000D_
{_x000D_
var value = "";_x000D_
var date = new Date();_x000D_
switch (type) {_x000D_
case "Date":_x000D_
value = date.getDate(); // Get the day as a number (1-31)_x000D_
break;_x000D_
case "Day":_x000D_
value = date.getDay(); // Get the weekday as a number (0-6)_x000D_
break;_x000D_
case "FullYear":_x000D_
value = date.getFullYear(); // Get the four digit year (yyyy)_x000D_
break;_x000D_
case "Hours":_x000D_
value = date.getHours(); // Get the hour (0-23)_x000D_
break;_x000D_
case "Milliseconds":_x000D_
value = date.getMilliseconds(); // Get the milliseconds (0-999)_x000D_
break;_x000D_
case "Minutes":_x000D_
value = date.getMinutes(); // Get the minutes (0-59)_x000D_
break;_x000D_
case "Month":_x000D_
value = date.getMonth(); // Get the month (0-11)_x000D_
break;_x000D_
case "Seconds":_x000D_
value = date.getSeconds(); // Get the seconds (0-59)_x000D_
break;_x000D_
case "Time":_x000D_
value = date.getTime(); // Get the time (milliseconds since January 1, 1970)_x000D_
break;_x000D_
}_x000D_
_x000D_
$(element).siblings('span').text(value);_x000D_
}
_x000D_
li{_x000D_
list-style-type: none;_x000D_
padding: 5px;_x000D_
}_x000D_
_x000D_
button{_x000D_
width: 150px;_x000D_
}_x000D_
_x000D_
span{_x000D_
margin-left: 100px;_x000D_
}
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
_x000D_
_x000D_
<ul>_x000D_
<li>_x000D_
<button type="button" onclick="generate('Date',this)">Get Date</button>_x000D_
<span></span>_x000D_
</li>_x000D_
<li>_x000D_
<button type="button" onclick="generate('Day',this)">Get Day</button>_x000D_
<span></span>_x000D_
</li>_x000D_
<li>_x000D_
<button type="button" onclick="generate('FullYear',this)">Get Full Year</button>_x000D_
<span></span>_x000D_
</li>_x000D_
<li>_x000D_
<button type="button" onclick="generate('Hours',this)">Get Hours</button>_x000D_
<span></span>_x000D_
</li>_x000D_
<li>_x000D_
<button type="button" onclick="generate('Milliseconds',this)">Get Milliseconds</button>_x000D_
<span></span>_x000D_
</li>_x000D_
_x000D_
<li>_x000D_
<button type="button" onclick="generate('Minutes',this)">Get Minutes</button>_x000D_
<span></span>_x000D_
</li>_x000D_
<li>_x000D_
<button type="button" onclick="generate('Month',this)">Get Month</button>_x000D_
<span></span>_x000D_
</li>_x000D_
<li>_x000D_
<button type="button" onclick="generate('Seconds',this)">Get Seconds</button>_x000D_
<span></span>_x000D_
</li>_x000D_
<li>_x000D_
<button type="button" onclick="generate('Time',this)">Get Time</button>_x000D_
<span></span>_x000D_
</li>_x000D_
</ul>
_x000D_
Thought I would chip in here with when I have found ON
to be more useful than USING
. It is when OUTER
joins are introduced into queries.
ON
benefits from allowing the results set of the table that a query is OUTER
joining onto to be restricted while maintaining the OUTER
join. Attempting to restrict the results set through specifying a WHERE
clause will, effectively, change the OUTER
join into an INNER
join.
Granted this may be a relative corner case. Worth putting out there though.....
For example:
CREATE TABLE country (
countryId int(10) unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
country varchar(50) not null,
UNIQUE KEY countryUIdx1 (country)
) ENGINE=InnoDB;
insert into country(country) values ("France");
insert into country(country) values ("China");
insert into country(country) values ("USA");
insert into country(country) values ("Italy");
insert into country(country) values ("UK");
insert into country(country) values ("Monaco");
CREATE TABLE city (
cityId int(10) unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
countryId int(10) unsigned not null,
city varchar(50) not null,
hasAirport boolean not null default true,
UNIQUE KEY cityUIdx1 (countryId,city),
CONSTRAINT city_country_fk1 FOREIGN KEY (countryId) REFERENCES country (countryId)
) ENGINE=InnoDB;
insert into city (countryId,city,hasAirport) values (1,"Paris",true);
insert into city (countryId,city,hasAirport) values (2,"Bejing",true);
insert into city (countryId,city,hasAirport) values (3,"New York",true);
insert into city (countryId,city,hasAirport) values (4,"Napoli",true);
insert into city (countryId,city,hasAirport) values (5,"Manchester",true);
insert into city (countryId,city,hasAirport) values (5,"Birmingham",false);
insert into city (countryId,city,hasAirport) values (3,"Cincinatti",false);
insert into city (countryId,city,hasAirport) values (6,"Monaco",false);
-- Gah. Left outer join is now effectively an inner join
-- because of the where predicate
select *
from country left join city using (countryId)
where hasAirport
;
-- Hooray! I can see Monaco again thanks to
-- moving my predicate into the ON
select *
from country co left join city ci on (co.countryId=ci.countryId and ci.hasAirport)
;
I did it by putting
export JAVA_HOME=`/usr/libexec/java_home`
(backtics) in my .bashrc. See my comment on Adrian's answer.
OFFSET
is nothing but a keyword to indicate starting cursor in table
SELECT column FROM table LIMIT 18 OFFSET 8 -- fetch 18 records, begin with record 9 (OFFSET 8)
you would get the same result form
SELECT column FROM table LIMIT 8, 18
visual representation (R
is one record in the table in some order)
OFFSET LIMIT rest of the table
__||__ _______||_______ __||__
/ \ / \ /
RRRRRRRR RRRRRRRRRRRRRRRRRR RRRR...
\________________/
||
your result
here's how:
import pygame
screen=pygame.display.set_mode([640, 480])
screen.fill([255, 255, 255])
red=255
blue=0
green=0
left=50
top=50
width=90
height=90
filled=0
pygame.draw.rect(screen, [red, blue, green], [left, top, width, height], filled)
pygame.display.flip()
running=True
while running:
for event in pygame.event.get():
if event.type==pygame.QUIT:
running=False
pygame.quit()
I would use the following awk
command:
string="text,text,text,text"
char=","
awk -F"${char}" '{print NF-1}' <<< "${string}"
I'm splitting the string by $char
and print the number of resulting fields minus 1.
If your shell does not support the <<<
operator, use echo
:
echo "${string}" | awk -F"${char}" '{print NF-1}'
Try to use strstr
char* lastSlash;
lastSlash = strstr(filename, ".");
Use stream_context_set_default
function. It is much easier to use as you can directly use file_get_contents or similar functions without passing any additional parameters
This blog post explains how to use it. Here is the code from that page.
<?php
// Edit the four values below
$PROXY_HOST = "proxy.example.com"; // Proxy server address
$PROXY_PORT = "1234"; // Proxy server port
$PROXY_USER = "LOGIN"; // Username
$PROXY_PASS = "PASSWORD"; // Password
// Username and Password are required only if your proxy server needs basic authentication
$auth = base64_encode("$PROXY_USER:$PROXY_PASS");
stream_context_set_default(
array(
'http' => array(
'proxy' => "tcp://$PROXY_HOST:$PROXY_PORT",
'request_fulluri' => true,
'header' => "Proxy-Authorization: Basic $auth"
// Remove the 'header' option if proxy authentication is not required
)
)
);
$url = "http://www.pirob.com/";
print_r( get_headers($url) );
echo file_get_contents($url);
?>
The below example shows how to read the text in the question, represented as the "jsonText" variable. This solution uses the Java EE7 javax.json API (which is mentioned in some of the other answers). The reason I've added it as a separate answer is that the following code shows how to actually access some of the values shown in the question. An implementation of the javax.json API would be required to make this code run. The full package for each of the classes required was included as I didn't want to declare "import" statements.
javax.json.JsonReader jr =
javax.json.Json.createReader(new StringReader(jsonText));
javax.json.JsonObject jo = jr.readObject();
//Read the page info.
javax.json.JsonObject pageInfo = jo.getJsonObject("pageInfo");
System.out.println(pageInfo.getString("pageName"));
//Read the posts.
javax.json.JsonArray posts = jo.getJsonArray("posts");
//Read the first post.
javax.json.JsonObject post = posts.getJsonObject(0);
//Read the post_id field.
String postId = post.getString("post_id");
Now, before anyone goes and downvotes this answer because it doesn't use GSON, org.json, Jackson, or any of the other 3rd party frameworks available, it's an example of "required code" per the question to parse the provided text. I am well aware that adherence to the current standard JSR 353 was not being considered for JDK 9 and as such the JSR 353 spec should be treated the same as any other 3rd party JSON handling implementation.
The URI is encoded as UTF-8, but Tomcat is decoding them as ISO-8859-1. You need to edit the connector settings in the server.xml and add the URIEncoding="UTF-8" attribute.
or edit this parameter on your application.properties
server.tomcat.uri-encoding=utf-8
<meta property="og:title" content="Ali Umair"/>
<meta property="og:description" content="Ali UMair is a web developer"/><meta property="og:image" content="../image" />
<a target="_blank" href="https://plus.google.com/share?url=<? echo urlencode('http://www..'); ?>"><img src="../gplus-black_icon.png" alt="" /></a>
this code will work with image text and description please put meta into head tag
Dictionaries in python have no order. You could use a list of tuples as your data structure instead.
d = { 'a': 10, 'b': 20, 'c': 30}
newd = [('a',10), ('b',20), ('c',30)]
Then this code could be used to find the locations of keys with a specific value
locations = [i for i, t in enumerate(newd) if t[0]=='b']
>>> [1]
You can use the getClass()
method, or you can use instanceof. For example
for (Object obj : list) {
if (obj instanceof String) {
...
}
}
or
for (Object obj : list) {
if (obj.getClass().equals(String.class)) {
...
}
}
Note that instanceof will match subclasses. For instance, of C
is a subclass of A
, then the following will be true:
C c = new C();
assert c instanceof A;
However, the following will be false:
C c = new C();
assert !c.getClass().equals(A.class)
Just for the record, remember that the last "Z" in "2009-09-28T08:00:00Z" means that the time is indeed in UTC.
See http://en.wikipedia.org/wiki/ISO_8601 for details.
I'm using: Win Server 2012 R2 / IIS 8.5 / MVC4 / .Net 4.5
If none of the above worked then try this:
Uncheck "Precompile during Publishing"
This kicked my butt for a few days.
php artisan config:clear
(NOT cache)
Are you committing the cell before pressing the button (pressing Enter)? The contents of the cell must be stored before it can be used to name a sheet.
A better way to do this is to pop up a dialog box and get the name you wish to use.
adjustsFontSizeToFit
and numberOfLines
works for me. They adjust long email into 1 line.
<View>
<Text
numberOfLines={1}
adjustsFontSizeToFit
style={{textAlign:'center',fontSize:30}}
>
{this.props.email}
</Text>
</View>
To draw Horizontal
************************
<Rectangle HorizontalAlignment="Stretch" VerticalAlignment="Center" Fill="DarkCyan" Height="4"/>
To draw vertical
*******************
<Rectangle HorizontalAlignment="Stretch" VerticalAlignment="Center" Fill="DarkCyan" Height="4" Width="Auto" >
<Rectangle.RenderTransform>
<TransformGroup>
<ScaleTransform/>
<SkewTransform/>
<RotateTransform Angle="90"/>
<TranslateTransform/>
</TransformGroup>
</Rectangle.RenderTransform>
</Rectangle>
Not much to add to the community wiki answer, except for timestamp!
Javascript uses the following format:
new Date().toJSON() // "2016-01-08T19:00:00.123Z"
Python side (for the json.dumps
handler, see the other answers):
>>> from datetime import datetime
>>> d = datetime.strptime('2016-01-08T19:00:00.123Z', '%Y-%m-%dT%H:%M:%S.%fZ')
>>> d
datetime.datetime(2016, 1, 8, 19, 0, 0, 123000)
>>> d.isoformat() + 'Z'
'2016-01-08T19:00:00.123000Z'
If you leave that Z out, frontend frameworks like angular can not display the date in browser-local timezone:
> $filter('date')('2016-01-08T19:00:00.123000Z', 'yyyy-MM-dd HH:mm:ss')
"2016-01-08 20:00:00"
> $filter('date')('2016-01-08T19:00:00.123000', 'yyyy-MM-dd HH:mm:ss')
"2016-01-08 19:00:00"
You're missing a GROUP BY clause:
SELECT news.id, users.username, news.title, news.date, news.body, COUNT(comments.id)
FROM news
LEFT JOIN users
ON news.user_id = users.id
LEFT JOIN comments
ON comments.news_id = news.id
GROUP BY news.id
The left join is correct. If you used an INNER or RIGHT JOIN then you wouldn't get news items that didn't have comments.
Try this:
public static void main(String[] args) {
String str = "My name is Milan, people know me as Milan Vasic.";
Pattern p = Pattern.compile("(Milan)(?! Vasic)");
Matcher m = p.matcher(str);
StringBuffer sb = new StringBuffer();
while(m.find()) {
m.appendReplacement(sb, "Milan Vasic");
}
m.appendTail(sb);
System.out.println(sb);
}
func post() {
NotificationCenter.default.post(name: Notification.Name("SomeNotificationName"),
object: nil,
userInfo:["key0": "value", "key1": 1234])
}
func addObservers() {
NotificationCenter.default.addObserver(self,
selector: #selector(someMethod),
name: Notification.Name("SomeNotificationName"),
object: nil)
}
@objc func someMethod(_ notification: Notification) {
let info0 = notification.userInfo?["key0"]
let info1 = notification.userInfo?["key1"]
}
Replace Notification.Name("SomeNotificationName")
with .someNotificationName
:
extension Notification.Name {
static let someNotificationName = Notification.Name("SomeNotificationName")
}
Replace "key0"
and "key1"
with Notification.Key.key0
and Notification.Key.key1
:
extension Notification {
enum Key: String {
case key0
case key1
}
}
Why should I definitely do this ? To avoid costly typo errors, enjoy renaming, enjoy find usage etc...
I know this is a old question but i think i must provide my answer to it because my problem was not solved by others.
first of all : i was dynamically adding fragments using fragmentTransactions. Second: my fragments were modified using AsyncTasks (DB queries on a server). Third: my fragment was not instantiated at activity start Fourth: i used a custom fragment instantiation "create or load it" in order to get the fragment variable. Fourth: activity was recreated because of orientation change
The problem was that i wanted to "remove" the fragment because of the query answer, but the fragment was incorrectly created just before. I don't know why, probably because of the "commit" be done later, the fragment was not added yet when it was time to remove it. Therefore getActivity() was returning null.
Solution : 1)I had to check that i was correctly trying to find the first instance of the fragment before creating a new one 2)I had to put serRetainInstance(true) on that fragment in order to keep it through orientation change (no backstack needed therefore no problem) 3)Instead of "recreating or getting old fragment" just before "remove it", I directly put the fragment at activity start. Instantiating it at activity start instead of "loading" (or instantiating) the fragment variable before removing it prevented getActivity problems.
Ran into the same problem on Laravel 4 trying to send e-mail using SSL encryption.
Having WAMPServer 2.2 on Windows 7 64bit I only enabled php_openssl in the php.ini, restarted WAMPServer and worked flawlessly.
Did following:
I beleive I'm little late here. But I think this would help for the new peeps! If you're using smtp.gmail.com , then you have to do the following:
Turn on the less secure apps
You'll get the security mail in your gmail inbox, Click Yes,it's me in that.
Sometimes you do get focus but no cursor in a text field. In this case you would do this:
document.getElementById(frmObj.id).select();
this error is also caused by null pointer reference. if you are using a pointer who is not initialized then it causes this error.
to check either a pointer is initialized or not you can try something like
Class *pointer = new Class();
if(pointer!=nullptr){
pointer->myFunction();
}
The Ctrl+Alt+Down / Ctrl+Alt+Up flips my screen so I overrode that in the Eclipse shortcuts via Window => Preferences => General => Keys. Search for "dupl" to find the Duplicate Lines command. I overrode the default and chose Ctrl+Shift+D. For me, that's easy to remember just like Ctrl+D to delete lines
I found a way to do it without creating your own images. In other words, the system image is being scaled. I don't pretend that the solution is perfect; if anyone knows a way to shorten some of the steps, I'll be happy to find out how.
First, I put the following in the main activity class of the project (WonActivity) . This was taken directly from Stack Overflow -- thank you guys!
/** get the default drawable for the check box */
Drawable getDefaultCheckBoxDrawable()
{
int resID = 0;
if (Build.VERSION.SDK_INT <= 10)
{
// pre-Honeycomb has a different way of setting the CheckBox button drawable
resID = Resources.getSystem().getIdentifier("btn_check", "drawable", "android");
}
else
{
// starting with Honeycomb, retrieve the theme-based indicator as CheckBox button drawable
TypedValue value = new TypedValue();
getApplicationContext().getTheme().resolveAttribute(android.R.attr.listChoiceIndicatorMultiple, value, true);
resID = value.resourceId;
}
return getResources().getDrawable(resID);
}
Second, I created a class to "scale a drawable". Please notice that it is completely different from the standard ScaleDrawable.
import android.graphics.drawable.*;
/** The drawable that scales the contained drawable */
public class ScalingDrawable extends LayerDrawable
{
/** X scale */
float scaleX;
/** Y scale */
float scaleY;
ScalingDrawable(Drawable d, float scaleX, float scaleY)
{
super(new Drawable[] { d });
setScale(scaleX, scaleY);
}
ScalingDrawable(Drawable d, float scale)
{
this(d, scale, scale);
}
/** set the scales */
void setScale(float scaleX, float scaleY)
{
this.scaleX = scaleX;
this.scaleY = scaleY;
}
/** set the scale -- proportional scaling */
void setScale(float scale)
{
setScale(scale, scale);
}
// The following is what I wrote this for!
@Override
public int getIntrinsicWidth()
{
return (int)(super.getIntrinsicWidth() * scaleX);
}
@Override
public int getIntrinsicHeight()
{
return (int)(super.getIntrinsicHeight() * scaleY);
}
}
Finally, I defined a checkbox class.
import android.graphics.*;
import android.graphics.drawable.Drawable;
import android.widget.*;
/** A check box that resizes itself */
public class WonCheckBox extends CheckBox
{
/** the check image */
private ScalingDrawable checkImg;
/** original height of the check-box image */
private int origHeight;
/** original padding-left */
private int origPadLeft;
/** height set by the user directly */
private float height;
WonCheckBox()
{
super(WonActivity.W.getApplicationContext());
setBackgroundColor(Color.TRANSPARENT);
// get the original drawable and get its height
Drawable origImg = WonActivity.W.getDefaultCheckBoxDrawable();
origHeight = height = origImg.getIntrinsicHeight();
origPadLeft = getPaddingLeft();
// I tried origImg.mutate(), but that fails on Android 2.1 (NullPointerException)
checkImg = new ScalingDrawable(origImg, 1);
setButtonDrawable(checkImg);
}
/** set checkbox height in pixels directly */
public void setHeight(int height)
{
this.height = height;
float scale = (float)height / origHeight;
checkImg.setScale(scale);
// Make sure the text is not overlapping with the image.
// This is unnecessary on Android 4.2.2, but very important on previous versions.
setPadding((int)(scale * origPadLeft), 0, 0, 0);
// call the checkbox's internal setHeight()
// (may be unnecessary in your case)
super.setHeight(height);
}
}
That's it. If you put a WonCheckBox in your view and apply setHeight(), the check-box image will be of the right size.
Had similar problems using VS2012 and VS2013.
Adding the following line to <appSettings> in the main web.config worked:
<add key="webpages:Version" value="3.0.0.0" />
If the line was already there but said 2.0.0.0, changing it to 3.0.0.0 worked.
Prefix the call with Module2 (ex. Module2.IDLE
). I'm assuming since you asked this that you have IDLE defined multiple times in the project, otherwise this shouldn't be necessary.
Just a note:
W3C has no problem with button inside of link tag, so it is just another MS sub-standard.
Answer:
Use surrogate button, unless you want to go for a full image.
Surrogate button can be put into tag (safer, if you use spans, not divs).
It can be styled to look like button, or anything else.
It is versatile - one piece of css code powers all instances - just define CSS once and from that point just copy and paste html instance wherever your code requires it.
Every button can have its own label - great for multi-lingual pages (easier that doing pictures for every language - I think) - also allows to propagate instances all over your script easier.
Adjusts its width to label length - also takes fixed width if it is how you want it.
IE7 is an exception to above - it must have width, or will make this button from edge to edge - alternatively to giving it width, you can float button left
- css for IE7:
a. .width:150px; (make note of dot before property, I usually target IE7 by adding such dot - remove dot and property will be read by all browsers)
b. text-align:center; - if you have fixed width, you have to have this to center text/label
c. cursor:pointer; - all IE must have this to show link pointer correctly - good browsers do not need it
You can go step forward with this code and use CSS3 to style it, instead of using images:
a. radius for round corners (limitation: IE will show them square)
b. gradient to make it "button like" (limitation: opera does not support gradients, so remember to set standard background colour for this browser)
c. use :hover pclass to change button states depending on mouse pointer position etc. - you can apply it to text label only, or whole button
.button_surrogate span { margin:0; display:block; height:25px; text-align:center; cursor:pointer; .width:150px; background:url(left_button_edge.png) left top no-repeat; }
.button_surrogate span span { display:block; padding:0 14px; height:25px; background:url(right_button_edge.png) right top no-repeat; }
.button_surrogate span span span { display:block; overflow:hidden; padding:5px 0 0 0; background:url(button_connector.png) left top repeat-x; }
HTML code below (button instance):
<a href="#">
<span class="button_surrogate">
<span><span><span>YOUR_BUTTON_LABEL</span></span></span>
</span>
</a>
Just use JSONObject.toString();
method.
And have a look at OkHttp's tutorial:
public static final MediaType JSON
= MediaType.parse("application/json; charset=utf-8");
OkHttpClient client = new OkHttpClient();
String post(String url, String json) throws IOException {
RequestBody body = RequestBody.create(JSON, json); // new
// RequestBody body = RequestBody.create(JSON, json); // old
Request request = new Request.Builder()
.url(url)
.post(body)
.build();
Response response = client.newCall(request).execute();
return response.body().string();
}
Be careful when accessing DateTime.Now twice, as it's possible for the calls to straddle midnight and you'll get wacky results on rare occasions and be left scratching your head.
To be safe, you should assign DateTime.Now to a local variable first if you're going to use it more than once:
var now = DateTime.Now;
var time = now.ToString("hh:mm:ss tt");
var date = now.ToString("MM/dd/yy");
Note the use of lower case "hh" do display hours from 00-11 even in the afternoon, and "tt" to show AM/PM, as the question requested. If you want 24 hour clock 00-23, use "HH".
In NodeJS if you know the ID
, the looping through the array is very slow compared to object[ID]
.
const uniqueString = require('unique-string');
const obj = {};
const arr = [];
var seeking;
//create data
for(var i=0;i<1000000;i++){
var getUnique = `${uniqueString()}`;
if(i===888555) seeking = getUnique;
arr.push(getUnique);
obj[getUnique] = true;
}
//retrieve item from array
console.time('arrTimer');
for(var x=0;x<arr.length;x++){
if(arr[x]===seeking){
console.log('Array result:');
console.timeEnd('arrTimer');
break;
}
}
//retrieve item from object
console.time('objTimer');
var hasKey = !!obj[seeking];
console.log('Object result:');
console.timeEnd('objTimer');
And the results:
Array result:
arrTimer: 12.857ms
Object result:
objTimer: 0.051ms
Even if the seeking ID is the first one in the array/object:
Array result:
arrTimer: 2.975ms
Object result:
objTimer: 0.068ms
From my perspective it is more semantic to use <hr>
elements as line breaks between flex items.
.container {_x000D_
display: flex;_x000D_
flex-flow: wrap;_x000D_
}_x000D_
_x000D_
.container hr {_x000D_
width: 100%;_x000D_
}
_x000D_
<div class="container">_x000D_
<div>1</div>_x000D_
<div>2</div>_x000D_
<hr>_x000D_
<div>3</div>_x000D_
<div>2</div>_x000D_
..._x000D_
</div>
_x000D_
Tested in Chrome 66, Firefox 60 and Safari 11.
Like this: ^[^0-9]+$
Explanation:
^
matches the beginning of the string[^...]
matches anything that isn't inside0-9
means any character between 0 and 9+
matches one or more of the previous thing$
matches the end of the stringJust to add to yamen's answer, which is perfect for images but not so much for text.
If you are trying to use this to scale text, like say a Word document (which is in this case in bytes from Word Interop), you will need to make a few modifications or you will get giant bars on the side.
May not be perfect but works for me!
using (MemoryStream ms = new MemoryStream(wordBytes))
{
float width = 3840;
float height = 2160;
var brush = new SolidBrush(Color.White);
var rawImage = Image.FromStream(ms);
float scale = Math.Min(width / rawImage.Width, height / rawImage.Height);
var scaleWidth = (int)(rawImage.Width * scale);
var scaleHeight = (int)(rawImage.Height * scale);
var scaledBitmap = new Bitmap(scaleWidth, scaleHeight);
Graphics graph = Graphics.FromImage(scaledBitmap);
graph.InterpolationMode = InterpolationMode.High;
graph.CompositingQuality = CompositingQuality.HighQuality;
graph.SmoothingMode = SmoothingMode.AntiAlias;
graph.FillRectangle(brush, new RectangleF(0, 0, width, height));
graph.DrawImage(rawImage, new Rectangle(0, 0 , scaleWidth, scaleHeight));
scaledBitmap.Save(fileName, ImageFormat.Png);
return scaledBitmap;
}
For me, the menu item Inspect Devices wasn't available (not shown at all). But, simply browsing to chrome://inspect/#devices showed me my device and I was able to use the port forward etc. I have no idea why the menu item is not displayed.
Phone: Android Galaxy S4
OS: Mac OS X
I would point a beginner to the Wiki article on the Main function, then supplement it with this.
Java only starts running a program with the specific public static void main(String[] args)
signature, and one can think of a signature like their own name - it's how Java can tell the difference between someone else's main()
and the one true main()
.
String[] args
is a collection of String
s, separated by a space, which can be typed into the program on the terminal. More times than not, the beginner isn't going to use this variable, but it's always there just in case.
I fix the problem with under statement ; send data with url same GET methode
$.ajax({
url: 'includes/get_ajax_function.php?value=jack&id='+id,
type: 'post',
data: $('#b-info1').serializeArray(),
and get value with $_REQUEST['value']
OR $_GET['id']
Maybe you simply want the standard format string "N"
, as in
number.ToString("N")
It will use thousand separators, and a fixed number of fractional decimals. The symbol for thousands separators and the symbol for the decimal point depend on the format provider (typically CultureInfo
) you use, as does the number of decimals (which will normally by 2, as you require).
If the format provider specifies a different number of decimals, and if you don't want to change the format provider, you can give the number of decimals after the N
, as in .ToString("N2")
.
Edit: The sizes of the groups between the commas are governed by the
CultureInfo.CurrentCulture.NumberFormat.NumberGroupSizes
array, given that you don't specify a special format provider.
Use r.URL.Query()
when you appending to existing query, if you are building new set of params use the url.Values
struct like so
package main
import (
"fmt"
"log"
"net/http"
"net/url"
"os"
)
func main() {
req, err := http.NewRequest("GET","http://api.themoviedb.org/3/tv/popular", nil)
if err != nil {
log.Print(err)
os.Exit(1)
}
// if you appending to existing query this works fine
q := req.URL.Query()
q.Add("api_key", "key_from_environment_or_flag")
q.Add("another_thing", "foo & bar")
// or you can create new url.Values struct and encode that like so
q := url.Values{}
q.Add("api_key", "key_from_environment_or_flag")
q.Add("another_thing", "foo & bar")
req.URL.RawQuery = q.Encode()
fmt.Println(req.URL.String())
// Output:
// http://api.themoviedb.org/3/tv/popularanother_thing=foo+%26+bar&api_key=key_from_environment_or_flag
}
Sometimes none of these would work for me. So I used to create a new web project in VS and select Authorization as "Individual User Accounts". I believe this work with some higher version of .NET Framework or something. But when you do this it will have your connection details. Mostly something like this
(LocalDb)\MSSQLLocalDB
If you can use a third party utility, here is an elevate
command line utility.
This is the usage description:
Usage: Elevate [-?|-wait|-k] prog [args]
-? - Shows this help
-wait - Waits until prog terminates
-k - Starts the the %COMSPEC% environment variable value and
executes prog in it (CMD.EXE, 4NT.EXE, etc.)
prog - The program to execute
args - Optional command line arguments to prog
Submit a form that contains an input with value of canvas toDataURL('image/png') e.g
//JAVASCRIPT
var canvas = document.getElementById("canvas");
var url = canvas.toDataUrl('image/png');
Insert the value of the url to your hidden input on form element.
//PHP
$data = $_POST['photo'];
$data = str_replace('data:image/png;base64,', '', $data);
$data = base64_decode($data);
file_put_contents("i". rand(0, 50).".png", $data);
Try os.path.splitext it should do what you want.
import os
print os.path.splitext('/home/user/somefile.txt')[0]+'.jpg'
Try this .. this method works for me..!! hope it may help somebody..!!
<android.support.v7.widget.Toolbar
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/my_awesome_toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:minHeight="?attr/actionBarSize"
app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar" >
<TextView
android:id="@+id/toolbar_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:singleLine="true"
android:text="Toolbar Title"
android:textColor="@android:color/white"
android:textSize="18sp"
android:textStyle="bold" />
</android.support.v7.widget.Toolbar>
To display logo in toolbar try the below snippet. // Set drawable
toolbar.setLogo(ContextCompat.getDrawable(context, R.drawable.logo));
Let me know the result.
for random every RUN file
size_t randomGenerator(size_t min, size_t max) {
std::mt19937 rng;
rng.seed(std::random_device()());
//rng.seed(std::chrono::high_resolution_clock::now().time_since_epoch().count());
std::uniform_int_distribution<std::mt19937::result_type> dist(min, max);
return dist(rng);
}
set
and get
API has been deprecated *The following code should only be used for version socket.io < 0.9
See: http://socket.io/docs/migrating-from-0-9/
It can be done through the handshake/authorization mechanism.
var cookie = require('cookie');
io.set('authorization', function (data, accept) {
// check if there's a cookie header
if (data.headers.cookie) {
// if there is, parse the cookie
data.cookie = cookie.parse(data.headers.cookie);
// note that you will need to use the same key to grad the
// session id, as you specified in the Express setup.
data.sessionID = data.cookie['express.sid'];
} else {
// if there isn't, turn down the connection with a message
// and leave the function.
return accept('No cookie transmitted.', false);
}
// accept the incoming connection
accept(null, true);
});
All the attributes, that are assigned to the data object are now accessible through the handshake attribute of the socket.io connection object.
io.sockets.on('connection', function (socket) {
console.log('sessionID ' + socket.handshake.sessionID);
});
<div style="height: 100px;"> </div>
OR
<div id="foo"/> and set the style as #foo { height: 100px; }
<div class="bar"/> and set the style as .bar{ height: 100px; }
I know this is already answered but in case you want something recursive and more generic and not relying on moment fromNow
you could use this function I created. Of course you can change its logic to adjust it to your needs to also support years and seconds.
var createdAt = moment('2019-05-13T14:23:00.607Z');
var expiresAt = moment('2019-05-14T14:23:00.563Z');
// You can also add years in the beginning of the array or seconds in its end
const UNITS = ["months", "weeks", "days", "hours", "minutes"]
function getValidFor (createdAt, expiresAt, unit = 'months') {
const validForUnit = expiresAt.diff(createdAt, unit);
// you could adjust the if to your needs
if (validForUnit > 1 || unit === "minutes") {
return [validForUnit, unit];
}
return getValidFor(createdAt, expiresAt, UNITS[UNITS.indexOf(unit) + 1]);
}
Quoting the Pandas docs
pandas.DataFrame(data=None, index=None, columns=None, dtype=None, copy=False)
Two-dimensional size-mutable, potentially heterogeneous tabular data structure with labeled axes (rows and columns). Arithmetic operations align on both row and column labels. Can be thought of as a dict-like container for Series objects. The primary pandas data structure.
So, the Series is the data structure for a single column of a DataFrame
, not only conceptually, but literally, i.e. the data in a DataFrame
is actually stored in memory as a collection of Series
.
Analogously: We need both lists and matrices, because matrices are built with lists. Single row matricies, while equivalent to lists in functionality still cannot exist without the list(s) they're composed of.
They both have extremely similar APIs, but you'll find that DataFrame
methods always cater to the possibility that you have more than one column. And, of course, you can always add another Series
(or equivalent object) to a DataFrame
, while adding a Series
to another Series
involves creating a DataFrame
.
Actually, there is a better way to do it than split:
public string GetFirstFromSplit(string input, char delimiter)
{
var i = input.IndexOf(delimiter);
return i == -1 ? input : input.Substring(0, i);
}
And as extension methods:
public static string FirstFromSplit(this string source, char delimiter)
{
var i = source.IndexOf(delimiter);
return i == -1 ? source : source.Substring(0, i);
}
public static string FirstFromSplit(this string source, string delimiter)
{
var i = source.IndexOf(delimiter);
return i == -1 ? source : source.Substring(0, i);
}
Usage:
string result = "hi, hello, sup".FirstFromSplit(',');
Console.WriteLine(result); // "hi"
I know the question explicitly says JS or jQuery, but anyway using lodash is always on the table for other searchers I suppose.
From the source docs:
var users = [
{ 'user': 'barney', 'age': 36, 'active': true },
{ 'user': 'fred', 'age': 40, 'active': false }
];
_.filter(users, function(o) { return !o.active; });
// => objects for ['fred']
// The `_.matches` iteratee shorthand.
_.filter(users, { 'age': 36, 'active': true });
// => objects for ['barney']
// The `_.matchesProperty` iteratee shorthand.
_.filter(users, ['active', false]);
// => objects for ['fred']
// The `_.property` iteratee shorthand.
_.filter(users, 'active');
// => objects for ['barney']
So the solution for the original question would be just one liner:
var result = _.filter(data, ['website', 'yahoo']);
This is how you generate the samples on a modern C++ compiler.
#include <random>
...
std::mt19937 generator;
double mean = 0.0;
double stddev = 1.0;
std::normal_distribution<double> normal(mean, stddev);
cerr << "Normal: " << normal(generator) << endl;
You can experiment with the native DB driver for Excel in language/platform of your choice. In Java world, you can try with http://code.google.com/p/sqlsheet/ which provides a JDBC driver for working with Excel sheets directly. Similarly, you can get drivers for the DB technology for other platforms.
However, I can guarantee that you will soon hit a wall with the number of features these wrapper libraries provide. Better way will be to use Apache HSSF/POI or similar level of library but it will need more coding effort.
You simply can't do that in SQL. You have to explicitly list the fields and concat each one:
SELECT CONCAT(field1, '/'), CONCAT(field2, '/'), ... FROM `socials` WHERE 1
If you are using an app, you can use SQL to read the column names, and then use your app to construct a query like above. See this stackoverflow question to find the column names: Get table column names in mysql?
You can easily wrap the readFile command with a promise like so:
async function readFile(path) {
return new Promise((resolve, reject) => {
fs.readFile(path, 'utf8', function (err, data) {
if (err) {
reject(err);
}
resolve(data);
});
});
}
then use:
await readFile("path/to/file");
Extending @DomTomCat and others' approach, these functional (ie, return modified data via deepcopy without affecting the input) setter and mapper works for nested dict
and list
.
setter:
def set_at_path(data0, keys, value):
data = deepcopy(data0)
if len(keys)>1:
if isinstance(data,dict):
return {k:(set_by_path(v,keys[1:],value) if k==keys[0] else v) for k,v in data.items()}
if isinstance(data,list):
return [set_by_path(x[1],keys[1:],value) if x[0]==keys[0] else x[1] for x in enumerate(data)]
else:
data[keys[-1]]=value
return data
mapper:
def map_at_path(data0, keys, f):
data = deepcopy(data0)
if len(keys)>1:
if isinstance(data,dict):
return {k:(map_at_path(v,keys[1:],f) if k==keys[0] else v) for k,v in data.items()}
if isinstance(data,list):
return [map_at_path(x[1],keys[1:],f) if x[0]==keys[0] else x[1] for x in enumerate(data)]
else:
data[keys[-1]]=f(data[keys[-1]])
return data
I think it is considered "more pythonic" to just use in
when determining if a key already exists, as in
if start not in graph:
return None
you can set your logging configuration file through command line:
$ java -Djava.util.logging.config.file=/path/to/app.properties MainClass
this way seems cleaner and easier to maintain.
You could use:
if(!this.form.checkbox.checked)
{
alert('You must agree to the terms first.');
return false;
}
(demo page).
<input type="checkbox" name="checkbox" value="check" />
<input type="submit" name="email_submit" value="submit" onclick="if(!this.form.checkbox.checked){alert('You must agree to the terms first.');return false}" />
false
from an inline event handler will prevent the default action from taking place (in this case, submitting the form).!
is the Boolean NOT operator.this
is the submit button because it is the element the event handler is attached to..form
is the form the submit button is in..checkbox
is the control named "checkbox" in that form..checked
is true if the checkbox is checked and false if the checkbox is unchecked.This isn't exactly what you are looking for but here is how I've approached this problem in the past;
You can enter a formula like;
=COUNTIF(A1:A10,"Green")
...into a cell. This will count the Number of cells between A1 and A10 that contain the text "Green". You can then select this cell value in a VBA Macro and assign it to a variable as normal.
maybe you want to take a look java.util.Stack
class.
it has push, pop methods. and implemented List interface.
for shift/unshift, you can reference @Jon's answer.
however, something of ArrayList you may want to care about , arrayList is not synchronized. but Stack is. (sub-class of Vector). If you have thread-safe requirement, Stack may be better than ArrayList.
You could use a label and a goto
, but this is a bad hack. You should consider moving some of the stuff in your if statement to separate methods.
They're spelled out pretty well in intellisense. Just type System.Collections. or System.Collections.Generics (preferred) and you'll get a list and short description of what's available.
The answer is no.
.class {
background-color: none; /* do not do this */
}
.class {
background-color: transparent;
}
background-color: transparent
accomplishes the same thing what you wanted to do with background-color: none
.
Actually only Jon's answer (Sep 5 '11 at 9:37) with BaseStream.Seek worked for my case. Thanks Jon! I needed to append lines to a zip archived txt file.
using (FileStream zipFS = new FileStream(@"c:\Temp\SFImport\test.zip",FileMode.OpenOrCreate))
{
using (ZipArchive arch = new ZipArchive(zipFS,ZipArchiveMode.Update))
{
ZipArchiveEntry entry = arch.GetEntry("testfile.txt");
if (entry == null)
{
entry = arch.CreateEntry("testfile.txt");
}
using (StreamWriter sw = new StreamWriter(entry.Open()))
{
sw.BaseStream.Seek(0,SeekOrigin.End);
sw.WriteLine("text content");
}
}
}
3306 is default port for mysql. Check it with:
netstat -nl|grep 3306
it should give this result:
tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN
New XCode 7 will only require 'UIFileSharingEnabled' key in Info.plist. 'CFBundleDisplayName' is not required any more.
One more hint: do not only modify the Info.plist of the 'tests' target. The main app and the 'tests' have different Info.plist.
Keep in mind that if you're doing a cross-domain Ajax call (by using JSONP) - you can't do it synchronously, the async
flag will be ignored by jQuery.
$.ajax({
url: "testserver.php",
dataType: 'jsonp', // jsonp
async: false //IGNORED!!
});
For JSONP-calls you could use:
Set it in the JAVA_OPTS
variable in [path to tomcat]/bin/catalina.sh. Under windows there is a console where you can set it up or you use the catalina.bat.
JAVA_OPTS=-agentpath:C:\calltracer\jvmti\calltracer5.dll=traceFile-C:\calltracer\call.trace,filterFile-C:\calltracer\filters.txt,outputType-xml,usage-uncontrolled -Djava.library.path=C:\calltracer\jvmti -Dcalltracerlib=calltracer5
Well, this question has a long list of answers already, but I would like to emphasize the comment from Morwenn: there is a proposal for C++17 that makes it really much simpler. See N4502 for details, but as a self-contained example consider the following.
This part is the constant part, put it in a header.
// See http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4502.pdf.
template <typename...>
using void_t = void;
// Primary template handles all types not supporting the operation.
template <typename, template <typename> class, typename = void_t<>>
struct detect : std::false_type {};
// Specialization recognizes/validates only types supporting the archetype.
template <typename T, template <typename> class Op>
struct detect<T, Op, void_t<Op<T>>> : std::true_type {};
then there is the variable part, where you specify what you are looking for (a type, a member type, a function, a member function etc.). In the case of the OP:
template <typename T>
using toString_t = decltype(std::declval<T>().toString());
template <typename T>
using has_toString = detect<T, toString_t>;
The following example, taken from N4502, shows a more elaborate probe:
// Archetypal expression for assignment operation.
template <typename T>
using assign_t = decltype(std::declval<T&>() = std::declval<T const &>())
// Trait corresponding to that archetype.
template <typename T>
using is_assignable = detect<T, assign_t>;
Compared to the other implementations described above, this one is fairly simple: a reduced set of tools (void_t
and detect
) suffices, no need for hairy macros. Besides, it was reported (see N4502) that it is measurably more efficient (compile-time and compiler memory consumption) than previous approaches.
Here is a live example. It works fine with Clang, but unfortunately, GCC versions before 5.1 followed a different interpretation of the C++11 standard which caused void_t
to not work as expected. Yakk already provided the work-around: use the following definition of void_t
(void_t in parameter list works but not as return type):
#if __GNUC__ < 5 && ! defined __clang__
// https://stackoverflow.com/a/28967049/1353549
template <typename...>
struct voider
{
using type = void;
};
template <typename...Ts>
using void_t = typename voider<Ts...>::type;
#else
template <typename...>
using void_t = void;
#endif
You can even try below option:
<a href="javascript:show_more_menu();">More >>></a>
extension Array where Element: Encodable {
func asArrayDictionary() throws -> [[String: Any]] {
var data: [[String: Any]] = []
for element in self {
data.append(try element.asDictionary())
}
return data
}
}
extension Encodable {
func asDictionary() throws -> [String: Any] {
let data = try JSONEncoder().encode(self)
guard let dictionary = try JSONSerialization.jsonObject(with: data, options: .allowFragments) as? [String: Any] else {
throw NSError()
}
return dictionary
}
}
If you're using Codable protocols in your models these extensions might be helpful for getting dictionary representation (Swift 4)
If you are working on your own, and you want the closest thing to OOP as you would find in Java or C# or C++, see the javascript library, CrxOop. CrxOop provides syntax somewhat familiar to Java developers.
Just be careful, Java's OOP is not the same as that found in Javascript. To get the same behavior as in Java, use CrxOop's classes, not CrxOop's structures, and make sure all your methods are virtual. An example of the syntax is,
crx_registerClass("ExampleClass",
{
"VERBOSE": 1,
"public var publicVar": 5,
"private var privateVar": 7,
"public virtual function publicVirtualFunction": function(x)
{
this.publicVar1 = x;
console.log("publicVirtualFunction");
},
"private virtual function privatePureVirtualFunction": 0,
"protected virtual final function protectedVirtualFinalFunction": function()
{
console.log("protectedVirtualFinalFunction");
}
});
crx_registerClass("ExampleSubClass",
{
VERBOSE: 1,
EXTENDS: "ExampleClass",
"public var publicVar": 2,
"private virtual function privatePureVirtualFunction": function(x)
{
this.PARENT.CONSTRUCT(pA);
console.log("ExampleSubClass::privatePureVirtualFunction");
}
});
var gExampleSubClass = crx_new("ExampleSubClass", 4);
console.log(gExampleSubClass.publicVar);
console.log(gExampleSubClass.CAST("ExampleClass").publicVar);
The code is pure javascript, no transpiling. The example is taken from a number of examples from the official documentation.
When you create a new class file, try to mark the check box near
public static void main(String[] args) {
this will help you to fix the problem.
What's dumpsys and what are its benefit
dumpsys is an android tool that runs on the device and dumps interesting information about the status of system services.
Obvious benefits:
What information can we retrieve from dumpsys shell command and how we can use it
If you run dumpsys you would see a ton of system information. But you can use only separate parts of this big dump.
to see all of the "subcommands" of dumpsys do:
dumpsys | grep "DUMP OF SERVICE"
Output:
DUMP OF SERVICE SurfaceFlinger:
DUMP OF SERVICE accessibility:
DUMP OF SERVICE account:
DUMP OF SERVICE activity:
DUMP OF SERVICE alarm:
DUMP OF SERVICE appwidget:
DUMP OF SERVICE audio:
DUMP OF SERVICE backup:
DUMP OF SERVICE battery:
DUMP OF SERVICE batteryinfo:
DUMP OF SERVICE clipboard:
DUMP OF SERVICE connectivity:
DUMP OF SERVICE content:
DUMP OF SERVICE cpuinfo:
DUMP OF SERVICE device_policy:
DUMP OF SERVICE devicestoragemonitor:
DUMP OF SERVICE diskstats:
DUMP OF SERVICE dropbox:
DUMP OF SERVICE entropy:
DUMP OF SERVICE hardware:
DUMP OF SERVICE input_method:
DUMP OF SERVICE iphonesubinfo:
DUMP OF SERVICE isms:
DUMP OF SERVICE location:
DUMP OF SERVICE media.audio_flinger:
DUMP OF SERVICE media.audio_policy:
DUMP OF SERVICE media.player:
DUMP OF SERVICE meminfo:
DUMP OF SERVICE mount:
DUMP OF SERVICE netstat:
DUMP OF SERVICE network_management:
DUMP OF SERVICE notification:
DUMP OF SERVICE package:
DUMP OF SERVICE permission:
DUMP OF SERVICE phone:
DUMP OF SERVICE power:
DUMP OF SERVICE reboot:
DUMP OF SERVICE screenshot:
DUMP OF SERVICE search:
DUMP OF SERVICE sensor:
DUMP OF SERVICE simphonebook:
DUMP OF SERVICE statusbar:
DUMP OF SERVICE telephony.registry:
DUMP OF SERVICE throttle:
DUMP OF SERVICE usagestats:
DUMP OF SERVICE vibrator:
DUMP OF SERVICE wallpaper:
DUMP OF SERVICE wifi:
DUMP OF SERVICE window:
Some Dumping examples and output
1) Getting all possible battery statistic:
$~ adb shell dumpsys battery
You will get output:
Current Battery Service state:
AC powered: false
AC capacity: 500000
USB powered: true
status: 5
health: 2
present: true
level: 100
scale: 100
voltage:4201
temperature: 271 <---------- Battery temperature! %)
technology: Li-poly <---------- Battery technology! %)
2)Getting wifi informations
~$ adb shell dumpsys wifi
Output:
Wi-Fi is enabled
Stay-awake conditions: 3
Internal state:
interface tiwlan0 runState=Running
SSID: XXXXXXX BSSID: xx:xx:xx:xx:xx:xx, MAC: xx:xx:xx:xx:xx:xx, Supplicant state: COMPLETED, RSSI: -60, Link speed: 54, Net ID: 2, security: 0, idStr: null
ipaddr 192.168.1.xxx gateway 192.168.x.x netmask 255.255.255.0 dns1 192.168.x.x dns2 8.8.8.8 DHCP server 192.168.x.x lease 604800 seconds
haveIpAddress=true, obtainingIpAddress=false, scanModeActive=false
lastSignalLevel=2, explicitlyDisabled=false
Latest scan results:
Locks acquired: 28 full, 0 scan
Locks released: 28 full, 0 scan
Locks held:
3) Getting CPU info
~$ adb shell dumpsys cpuinfo
Output:
Load: 0.08 / 0.4 / 0.64
CPU usage from 42816ms to 34683ms ago:
system_server: 1% = 1% user + 0% kernel / faults: 16 minor
kdebuglog.sh: 0% = 0% user + 0% kernel / faults: 160 minor
tiwlan_wq: 0% = 0% user + 0% kernel
usb_mass_storag: 0% = 0% user + 0% kernel
pvr_workqueue: 0% = 0% user + 0% kernel
+sleep: 0% = 0% user + 0% kernel
+sleep: 0% = 0% user + 0% kernel
TOTAL: 6% = 1% user + 3% kernel + 0% irq
4)Getting memory usage informations
~$ adb shell dumpsys meminfo 'your apps package name'
Output:
** MEMINFO in pid 5527 [com.sec.android.widgetapp.weatherclock] **
native dalvik other total
size: 2868 5767 N/A 8635
allocated: 2861 2891 N/A 5752
free: 6 2876 N/A 2882
(Pss): 532 80 2479 3091
(shared dirty): 932 2004 6060 8996
(priv dirty): 512 36 1872 2420
Objects
Views: 0 ViewRoots: 0
AppContexts: 0 Activities: 0
Assets: 3 AssetManagers: 3
Local Binders: 2 Proxy Binders: 8
Death Recipients: 0
OpenSSL Sockets: 0
SQL
heap: 0 MEMORY_USED: 0
PAGECACHE_OVERFLOW: 0 MALLOC_SIZE: 0
If you want see the info for all processes, use ~$ adb shell dumpsys meminfo
dumpsys is ultimately flexible and useful tool!
If you want to use this tool do not forget to add permission into your android manifest automatically android.permission.DUMP
Try to test all commands to learn more about dumpsys. Happy dumping!
Why flush if you can commit?
As someone new to working with databases and sqlalchemy, the previous answers - that flush()
sends SQL statements to the DB and commit()
persists them - were not clear to me. The definitions make sense but it isn't immediately clear from the definitions why you would use a flush instead of just committing.
Since a commit always flushes (https://docs.sqlalchemy.org/en/13/orm/session_basics.html#committing) these sound really similar. I think the big issue to highlight is that a flush is not permanent and can be undone, whereas a commit is permanent, in the sense that you can't ask the database to undo the last commit (I think)
@snapshoe highlights that if you want to query the database and get results that include newly added objects, you need to have flushed first (or committed, which will flush for you). Perhaps this is useful for some people although I'm not sure why you would want to flush rather than commit (other than the trivial answer that it can be undone).
In another example I was syncing documents between a local DB and a remote server, and if the user decided to cancel, all adds/updates/deletes should be undone (i.e. no partial sync, only a full sync). When updating a single document I've decided to simply delete the old row and add the updated version from the remote server. It turns out that due to the way sqlalchemy is written, order of operations when committing is not guaranteed. This resulted in adding a duplicate version (before attempting to delete the old one), which resulted in the DB failing a unique constraint. To get around this I used flush()
so that order was maintained, but I could still undo if later the sync process failed.
See my post on this at: Is there any order for add versus delete when committing in sqlalchemy
Similarly, someone wanted to know whether add order is maintained when committing, i.e. if I add object1
then add object2
, does object1
get added to the database before object2
Does SQLAlchemy save order when adding objects to session?
Again, here presumably the use of a flush() would ensure the desired behavior. So in summary, one use for flush is to provide order guarantees (I think), again while still allowing yourself an "undo" option that commit does not provide.
Autoflush and Autocommit
Note, autoflush can be used to ensure queries act on an updated database as sqlalchemy will flush before executing the query. https://docs.sqlalchemy.org/en/13/orm/session_api.html#sqlalchemy.orm.session.Session.params.autoflush
Autocommit is something else that I don't completely understand but it sounds like its use is discouraged: https://docs.sqlalchemy.org/en/13/orm/session_api.html#sqlalchemy.orm.session.Session.params.autocommit
Memory Usage
Now the original question actually wanted to know about the impact of flush vs. commit for memory purposes. As the ability to persist or not is something the database offers (I think), simply flushing should be sufficient to offload to the database - although committing shouldn't hurt (actually probably helps - see below) if you don't care about undoing.
sqlalchemy uses weak referencing for objects that have been flushed: https://docs.sqlalchemy.org/en/13/orm/session_state_management.html#session-referencing-behavior
This means if you don't have an object explicitly held onto somewhere, like in a list or dict, sqlalchemy won't keep it in memory.
However, then you have the database side of things to worry about. Presumably flushing without committing comes with some memory penalty to maintain the transaction. Again, I'm new to this but here's a link that seems to suggest exactly this: https://stackoverflow.com/a/15305650/764365
In other words, commits should reduce memory usage, although presumably there is a trade-off between memory and performance here. In other words, you probably don't want to commit every single database change, one at a time (for performance reasons), but waiting too long will increase memory usage.
JSL 1.7
The Oracle documentation mentions:
unchecked
: Unchecked warnings are identified by the string "unchecked". deprecation
: A Java compiler must produce a deprecation warning when a type, method, field, or constructor whose declaration is annotated with the annotation @Deprecated is used (i.e. overridden, invoked, or referenced by name), unless: [...] The use is within an entity that is annotated to suppress the warning with the annotation @SuppressWarnings("deprecation"); orIt then explains that implementations can add and document their own:
Compiler vendors should document the warning names they support in conjunction with this annotation type. Vendors are encouraged to cooperate to ensure that the same names work across multiple compilers.
In my case i written
<activity android:".Stopwatch"/>
instead of
<activity android:name=".Stopwatch"/>
in android manifest.
Check your manifest and gradle file again.
As mentionned in comments: you need a way to send your static files to the client. This can be achieved with a reverse proxy like Nginx, or simply using express.static().
Put all your "static" (css, js, images) files in a folder dedicated to it, different from where you put your "views" (html files in your case). I'll call it static
for the example. Once it's done, add this line in your server code:
app.use("/static", express.static('./static/'));
This will effectively serve every file in your "static" folder via the /static route.
Querying your index.js file in the client thus becomes:
<script src="static/index.js"></script>
This issue is indeed usually caused by setting a parameter value to null as HLGEM mentioned above. I thought i would elaborate on some solutions to this problem that i have found useful for the benefit of people new to this problem.
The solution that i prefer is to default the stored procedure parameters to NULL (or whatever value you want), which was mentioned by sangram above, but may be missed because the answer is very verbose. Something along the lines of:
CREATE PROCEDURE GetEmployeeDetails
@DateOfBirth DATETIME = NULL,
@Surname VARCHAR(20),
@GenderCode INT = NULL,
AS
This means that if the parameter ends up being set in code to null under some conditions, .NET will not set the parameter and the stored procedure will then use the default value it has defined. Another solution, if you really want to solve the problem in code, would be to use an extension method that handles the problem for you, something like:
public static SqlParameter AddParameter<T>(this SqlParameterCollection parameters, string parameterName, T value) where T : class
{
return value == null ? parameters.AddWithValue(parameterName, DBNull.Value) : parameters.AddWithValue(parameterName, value);
}
Matt Hamilton has a good post here that lists some more great extension methods when dealing with this area.
Also, if you don't have the gradlew file in your current directory:
You can install gradle with homebrew with the following command:
$ brew install gradle
As mentioned in this answer. Then, you are not going to need to include it in your path (homebrew will take care of that) and you can just run (from any directory):
$ gradle test
In reply to ""Why do they appear all of a sudden? I used to use this script for years and I've never had any problem."
It is very common for most sites to operate under the "default" error reporting of "Show all errors, but not 'notices' and 'deprecated'". This will be set in php.ini and apply to all sites on the server. This means that those "notices" used in the examples will be suppressed (hidden) while other errors, considered more critical, will be shown/recorded.
The other critical setting is the errors can be hidden (i.e. display_errors
set to "off" or "syslog").
What will have happened in this case is that either the error_reporting
was changed to also show notices (as per examples) and/or that the settings were changed to display_errors
on screen (as opposed to suppressing them/logging them).
Why have they changed?
The obvious/simplest answer is that someone adjusted either of these settings in php.ini, or an upgraded version of PHP is now using a different php.ini from before. That's the first place to look.
However it is also possible to override these settings in
and any of these could also have been changed.
There is also the added complication that the web server configuration can enable/disable .htaccess directives, so if you have directives in .htaccess that suddenly start/stop working then you need to check for that.
(.htconf / .htaccess assume you're running as apache. If running command line this won't apply; if running IIS or other webserver then you'll need to check those configs accordingly)
Summary
error_reporting
and display_errors
php directives in php.ini has not changed, or that you're not using a different php.ini from before.error_reporting
and display_errors
php directives in .htconf (or vhosts etc) have not changederror_reporting
and display_errors
php directives in .htaccess have not changederror_reporting
and display_errors
php directives have been set there.I had the same problem. You want to look the connection object supplied by the entity manager:
$conn = $em->getConnection();
You can then query/execute directly against it:
$statement = $conn->query('select foo from bar');
$num_rows_effected = $conn->exec('update bar set foo=1');
See the docs for the connection object at http://www.doctrine-project.org/api/dbal/2.0/doctrine/dbal/connection.html
Maybe this can help:
myArray=("$@")
also you can iterate over arguments by omitting 'in':
for arg; do
echo "$arg"
done
will be equivalent
for arg in "${myArray[@]}"; do
echo "$arg"
done
I added a HorizontalAlignment="Center" (The default is "Strech") and it solved my problem because it made the datagrid only as wide as needed. (Removed the datagrid's Width setting if you have one.)
nodeName will give you the tag name in uppercase, while localName will give you the lower case.
$("yourelement")[0].localName
will give you : yourelement instead of YOURELEMENT
Install tampermonkey and add the following UserScript with one (or more) @match
with specific page url (or a match of all pages: https://*
) e.g.:
// ==UserScript==
// @name inject-rx
// @namespace http://tampermonkey.net/
// @version 0.1
// @description Inject rx library on the page
// @author Me
// @match https://www.some-website.com/*
// @require https://cdnjs.cloudflare.com/ajax/libs/rxjs/6.5.4/rxjs.umd.min.js
// @grant none
// ==/UserScript==
(function() {
'use strict';
window.injectedRx = rxjs;
//Or even: window.rxjs = rxjs;
})();
Whenever you need the library on the console, or on a snippet enable the specific UserScript and refresh.
This solution prevents namespace pollution. You can use custom namespaces to avoid accidental overwrite of existing global variables on the page.
Pressing Ctrl+Space opens up the auto-completion dialog in Eclipse. In the Java Perspective it opens automatically after you typed a .
(normally with a short delay).
along with these two variants, there is also jade.renderFile
which generates html that need not be passed to the client.
usage-
var jade = require('jade');
exports.getJson = getJson;
function getJson(req, res) {
var html = jade.renderFile('views/test.jade', {some:'json'});
res.send({message: 'i sent json'});
}
getJson()
is available as a route in app.js.
Besides what other said, a common problem is to declare the types of the same function that is overloaded. Typical case is EventEmitter on() method which will accept multiple kind of listeners. Similar could happen When working with redux actions - and there you use the action type as literal to mark the overloading, In case of EventEmitters, you use the event name literal type:
interface MyEmitter extends EventEmitter {
on(name:'click', l: ClickListener):void
on(name:'move', l: MoveListener):void
on(name:'die', l: DieListener):void
//and a generic one
on(name:string, l:(...a:any[])=>any):void
}
type ClickListener = (e:ClickEvent)=>void
type MoveListener = (e:MoveEvent)=>void
... etc
// will type check the correct listener when writing something like:
myEmitter.on('click', e=>...<--- autocompletion
using System;
using System.IO;
using System.Runtime.Serialization.Json;
using System.Text;
namespace OTL
{
/// <summary>
/// Before usage: Define your class, sample:
/// [DataContract]
///public class MusicInfo
///{
/// [DataMember(Name="music_name")]
/// public string Name { get; set; }
/// [DataMember]
/// public string Artist{get; set;}
///}
/// </summary>
/// <typeparam name="T"></typeparam>
public class OTLJSON<T> where T : class
{
/// <summary>
/// Serializes an object to JSON
/// Usage: string serialized = OTLJSON<MusicInfo>.Serialize(musicInfo);
/// </summary>
/// <param name="instance"></param>
/// <returns></returns>
public static string Serialize(T instance)
{
var serializer = new DataContractJsonSerializer(typeof(T));
using (var stream = new MemoryStream())
{
serializer.WriteObject(stream, instance);
return Encoding.Default.GetString(stream.ToArray());
}
}
/// <summary>
/// DeSerializes an object from JSON
/// Usage: MusicInfo deserialized = OTLJSON<MusicInfo>.Deserialize(json);
/// </summary>
/// <param name="json"></param>
/// <returns></returns>
public static T Deserialize(string json)
{
if (string.IsNullOrEmpty(json))
throw new Exception("Json can't empty");
else
try
{
using (var stream = new MemoryStream(Encoding.Default.GetBytes(json)))
{
var serializer = new DataContractJsonSerializer(typeof(T));
return serializer.ReadObject(stream) as T;
}
}
catch (Exception e)
{
throw new Exception("Json can't convert to Object because it isn't correct format.");
}
}
}
}
This is the benchmark I have run after finding some articles around the net.
With 2.4.0 the winner is re.match?(str)
(as suggested by @wiktor-stribizew), on previous versions, re =~ str
seems to be fastest, although str =~ re
is almost as fast.
#!/usr/bin/env ruby
require 'benchmark'
str = "aacaabc"
re = Regexp.new('a+b').freeze
N = 4_000_000
Benchmark.bm do |b|
b.report("str.match re\t") { N.times { str.match re } }
b.report("str =~ re\t") { N.times { str =~ re } }
b.report("str[re] \t") { N.times { str[re] } }
b.report("re =~ str\t") { N.times { re =~ str } }
b.report("re.match str\t") { N.times { re.match str } }
if re.respond_to?(:match?)
b.report("re.match? str\t") { N.times { re.match? str } }
end
end
Results MRI 1.9.3-o551:
$ ./bench-re.rb | sort -t $'\t' -k 2
user system total real
re =~ str 2.390000 0.000000 2.390000 ( 2.397331)
str =~ re 2.450000 0.000000 2.450000 ( 2.446893)
str[re] 2.940000 0.010000 2.950000 ( 2.941666)
re.match str 3.620000 0.000000 3.620000 ( 3.619922)
str.match re 4.180000 0.000000 4.180000 ( 4.180083)
Results MRI 2.1.5:
$ ./bench-re.rb | sort -t $'\t' -k 2
user system total real
re =~ str 1.150000 0.000000 1.150000 ( 1.144880)
str =~ re 1.160000 0.000000 1.160000 ( 1.150691)
str[re] 1.330000 0.000000 1.330000 ( 1.337064)
re.match str 2.250000 0.000000 2.250000 ( 2.255142)
str.match re 2.270000 0.000000 2.270000 ( 2.270948)
Results MRI 2.3.3 (there is a regression in regex matching, it seems):
$ ./bench-re.rb | sort -t $'\t' -k 2
user system total real
re =~ str 3.540000 0.000000 3.540000 ( 3.535881)
str =~ re 3.560000 0.000000 3.560000 ( 3.560657)
str[re] 4.300000 0.000000 4.300000 ( 4.299403)
re.match str 5.210000 0.010000 5.220000 ( 5.213041)
str.match re 6.000000 0.000000 6.000000 ( 6.000465)
Results MRI 2.4.0:
$ ./bench-re.rb | sort -t $'\t' -k 2
user system total real
re.match? str 0.690000 0.010000 0.700000 ( 0.682934)
re =~ str 1.040000 0.000000 1.040000 ( 1.035863)
str =~ re 1.040000 0.000000 1.040000 ( 1.042963)
str[re] 1.340000 0.000000 1.340000 ( 1.339704)
re.match str 2.040000 0.000000 2.040000 ( 2.046464)
str.match re 2.180000 0.000000 2.180000 ( 2.174691)
Open the httpd.conf file and search for
"rewrite"
, then remove
"#"
at the starting of the line,so the line looks like.
LoadModule rewrite_module modules/mod_rewrite.so
then restart the wamp.
From other post:
find /c "string" file >NUL
if %errorlevel% equ 1 goto notfound
echo found
goto done
:notfound
echo notfound
goto done
:done
Use the /i switch when you want case insensitive checking:
find /i /c "string" file >NUL
Or something like: if not found write to file.
find /c "%%P" file.txt || ( echo %%P >> newfile.txt )
Or something like: if found write to file.
find /c "%%P" file.txt && ( echo %%P >> newfile.txt )
Or something like:
find /c "%%P" file.txt && ( echo found ) || ( echo not found )
Per this other post: Insert all values of a..., you can do the following:
INSERT INTO new_table (Foo, Bar, Fizz, Buzz)
SELECT Foo, Bar, Fizz, Buzz
FROM initial_table
It's important to specify the column names as indicated by the other answers.
There is a very simple solution to this unless I have not understood the problem. The following regular expression:
(.*)(>)(.*)
will match the pattern specified in your post.
So, in notepad++ you find (.*)(>)(.*)
and replace it with \3
.
The regular expressions are basically greedy in the sense that if you specify (.*)
it will match the whole line and what you want to do is break it down somehow so that you can extract the string you want to keep. Here, I have done exactly the same and it works fine in Notepad++ and Editplus3.
You just need to traverse up the DOM tree to the nearest <tr>
like so...
$("#ID_OF_ELEMENT").parents("tr").hide();
It's not a direct answer on question (its not about Actions
), but it also allow you to scroll easily to required element:
element = driver.find_element_by_id('some_id')
element.location_once_scrolled_into_view
This actually intend to return you coordinates (x
, y
) of element on page, but also scroll down right to target element
Try this, Set proxy in npm as follows
npm config set proxy "http://<user-name>:<password>@<proxy-url>:<port>"
npm config set https-proxy "http://<user-name>:<password>@<proxy-url>:<port>"
npm config set strict-ssl false
npm config set registry "http://registry.npmjs.org/"
int o1 = date1.IndexOf("-");
int o2 = date1.IndexOf("-",o1 + 1);
string str11 = date1.Substring(0,o1);
string str12 = date1.Substring(o1 + 1, o2 - o1 - 1);
string str13 = date1.Substring(o2 + 1);
int o21 = date2.IndexOf("-");
int o22 = date2.IndexOf("-", o1 + 1);
string str21 = date2.Substring(0, o1);
string str22 = date2.Substring(o1 + 1, o2 - o1 - 1);
string str23 = date2.Substring(o2 + 1);
if (Convert.ToInt32(str11) > Convert.ToInt32(str21))
{
}
else if (Convert.ToInt32(str12) > Convert.ToInt32(str22))
{
}
else if (Convert.ToInt32(str12) == Convert.ToInt32(str22) && Convert.ToInt32(str13) > Convert.ToInt32(str23))
{
}
Thanks for your suggestions, you got me on the right way !
Let's go for a complete explanation :
By default AngularJS http get query returns an object
So if you want to use @Ariel Array.prototype.chunk function you have first to transform object into an array.
And then to use the chunk function IN YOUR CONTROLLER otherwise if used directly into ng-repeat, it will brings you to an infdig error. The final controller looks :
// Initialize products to empty list
$scope.products = [];
// Load products from config file
$resource("/json/shoppinglist.json").get(function (data_object)
{
// Transform object into array
var data_array =[];
for( var i in data_object ) {
if (typeof data_object[i] === 'object' && data_object[i].hasOwnProperty("name")){
data_array.push(data_object[i]);
}
}
// Chunk Array and apply scope
$scope.products = data_array.chunk(3);
});
And HTML becomes :
<div class="row" ng-repeat="productrow in products">
<div class="col-sm-4" ng-repeat="product in productrow">
On the other side, I decided to directly return an array [] instead of an object {} from my JSON file. This way, controller becomes (please note specific syntax isArray:true) :
// Initialize products to empty list
$scope.products = [];
// Load products from config file
$resource("/json/shoppinglist.json").query({method:'GET', isArray:true}, function (data_array)
{
$scope.products = data_array.chunk(3);
});
HTML stay the same as above.
OPTIMIZATION
Last question in suspense is : how to make it 100% AngularJS without extending javascript array with chunk function ... if some people are interested in showing us if ng-repeat-start and ng-repeat-end are the way to go ... I'm curious ;)
ANDREW'S SOLUTION
Thanks to @Andrew, we now know adding a bootstrap clearfix class every three (or whatever number) element corrects display problem from differents block's height.
So HTML becomes :
<div class="row">
<div ng-repeat="product in products">
<div ng-if="$index % 3 == 0" class="clearfix"></div>
<div class="col-sm-4"> My product descrition with {{product.property}}
And your controller stays quite soft with removed chunck function :
// Initialize products to empty list
$scope.products = [];
// Load products from config file
$resource("/json/shoppinglist.json").query({method:'GET', isArray:true}, function (data_array)
{
//$scope.products = data_array.chunk(3);
$scope.products = data_array;
});
Here is solution for dynamic queries.
For example if you have more tables with different suffix:
dbo.SOMETHINGTABLE_ONE, dbo.SOMETHINGTABLE_TWO
Code:
DECLARE @INDEX AS NVARCHAR(20)
DECLARE @CheckVALUE AS NVARCHAR(max) = 'SELECT COUNT(SOMETHING) FROM
dbo.SOMETHINGTABLE_'+@INDEX+''
DECLARE @tempTable Table (TempVALUE int)
DECLARE @RESULTVAL INT
INSERT INTO @tempTable
EXEC sp_executesql @CheckVALUE
SET @RESULTVAL = (SELECT * FROM @tempTable)
DELETE @tempTable
SELECT @RESULTVAL
The answers in this topic are all great. However i'd like to propose another one. Most likely you have been given an api and want that into your c# project. Using Postman, you can setup and test the api call there and once it runs properly, you can simply click 'Code' and the request that you have been working on, is written to a c# snippet. like this:
var client = new RestClient("https://api.XXXXX.nl/oauth/token");
client.Timeout = -1;
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Basic N2I1YTM4************************************jI0YzJhNDg=");
request.AddHeader("Content-Type", "application/x-www-form-urlencoded");
request.AddHeader("Content-Type", "application/x-www-form-urlencoded");
request.AddParameter("grant_type", "password");
request.AddParameter("username", "[email protected]");
request.AddParameter("password", "XXXXXXXXXXXXX");
IRestResponse response = client.Execute(request);
Console.WriteLine(response.Content);
The code above depends on the nuget package RestSharp, which you can easily install.
Python 3.5 + Use io module
import json
import io
my_bytes_value = b'[{\'Date\': \'2016-05-21T21:35:40Z\', \'CreationDate\': \'2012-05-05\', \'LogoType\': \'png\', \'Ref\': 164611595, \'Classe\': [\'Email addresses\', \'Passwords\'],\'Link\':\'http://some_link.com\'}]'
fix_bytes_value = my_bytes_value.replace(b"'", b'"')
my_json = json.load(io.BytesIO(fix_bytes_value))
I couldn't bear the idea of allocating an array for plain repeat of components, so I've written a structural directive. In simplest form, that doesn't make the index available to the template, it looks like this:
import { Directive, Input, TemplateRef, ViewContainerRef } from '@angular/core';
@Directive({ selector: '[biRepeat]' })
export class RepeatDirective {
constructor( private templateRef: TemplateRef<any>,
private viewContainer: ViewContainerRef) { }
@Input('biRepeat') set count(c:number) {
this.viewContainer.clear();
for(var i=0;i<c;i++) {
this.viewContainer.createEmbeddedView(this.templateRef);
}
}
}
This worked for me:
location / {
alias /path/to/my/indexfile/;
try_files $uri /index.html;
}
This allowed me to create a catch-all URL for a javascript single-page app. All static files like css, fonts, and javascript built by npm run build
will be found if they are in the same directory as index.html
.
If the static files were in another directory, for some reason, you'd also need something like:
# Static pages generated by "npm run build"
location ~ ^/css/|^/fonts/|^/semantic/|^/static/ {
alias /path/to/my/staticfiles/;
}
while(rs.next())
{
if(f.exists() && !f.isDirectory())
continue; //then skip the iteration
else
{
//proceed
}
}
UseParNewGC usually knowns as "parallel young generation collector" is same in all ways as the parallel garbage collector (-XX:+UseParallelGC), except that its more sophiscated and effiecient. Also it can be used with a "concurrent low pause collector".
See Java GC FAQ, question 22 for more information.
Note that there are some known bugs with UseParNewGC
Simply We can do in scala is
scala> import util.control.Breaks._
scala> object TestBreak {
def main(args : Array[String]) {
breakable {
for (i <- 1 to 10) {
println(i)
if (i == 5)
break;
} } } }
output :
scala> TestBreak.main(Array())
1
2
3
4
5
.on() is for jQuery version 1.7 and above. If you have an older version, use this:
$("#SomeId").live("click",function(){
//do stuff;
});
You should consider (temporarily) disabling the constraint before you completely delete it.
If you look at the table creation TSQL you will see something like:
ALTER TABLE [dbo].[dbAccounting] CHECK CONSTRAINT [FK_some_FK_constraint]
You can run
ALTER TABLE [dbo].[dbAccounting] NOCHECK CONSTRAINT [FK_some_FK_constraint]
... then insert/update a bunch of values that violate the constraint, and then turn it back on by running the original CHECK
statement.
(I have had to do this to cleanup poorly designed systems I've inherited in the past.)
Below code will only print files within directory and exclude directories within given directory while traversing.
#include <dirent.h>
#include <stdio.h>
#include <errno.h>
#include <sys/stat.h>
#include<string.h>
int main(void)
{
DIR *d;
struct dirent *dir;
char path[1000]="/home/joy/Downloads";
d = opendir(path);
char full_path[1000];
if (d)
{
while ((dir = readdir(d)) != NULL)
{
//Condition to check regular file.
if(dir->d_type==DT_REG){
full_path[0]='\0';
strcat(full_path,path);
strcat(full_path,"/");
strcat(full_path,dir->d_name);
printf("%s\n",full_path);
}
}
closedir(d);
}
return(0);
}
In Java, you can verify using Object utils.
import static java.util.Objects.isNull;
if(IsNull(yourObject)){
//your block here
}
this works for me in Angular 7
// in component.ts
checked: boolean = true;
changeValue(value) {
this.checked = !value;
}
// in component.html
<mat-checkbox value="checked" (click)="changeValue(checked)" color="primary">
some Label
</mat-checkbox>
I hope help someone ... greetings. let me know if someone have some easiest
If I understand the situation correctly, you are just passing json data through the http body, instead of application/x-www-form-urlencoded
data.
You can fetch this data with this snippet:
$request_body = file_get_contents('php://input');
If you are passing json, then you can do:
$data = json_decode($request_body);
$data
then contains the json data is php array.
php://input
is a so called wrapper.
php://input is a read-only stream that allows you to read raw data from the request body. In the case of POST requests, it is preferable to use php://input instead of $HTTP_RAW_POST_DATA as it does not depend on special php.ini directives. Moreover, for those cases where $HTTP_RAW_POST_DATA is not populated by default, it is a potentially less memory intensive alternative to activating always_populate_raw_post_data. php://input is not available with enctype="multipart/form-data".
It works for me:
<div class="text-center">
<ul class="pagination pagination-lg">
<li>
<a href="#" aria-label="Previous">
<span aria-hidden="true">«</span>
</a>
</li>
<li><a href="#">1</a></li>
<li><a href="#">2</a></li>
<li><a href="#">3</a></li>
<li><a href="#">4</a></li>
<li><a href="#">5</a></li>
<li>
<a href="#" aria-label="Next">
<span aria-hidden="true">»</span>
</a>
</li>
</ul>
with the intl extension in PHP 5.3+, you can use the NumberFormatter class:
$amount = '12345.67';
$formatter = new NumberFormatter('en_GB', NumberFormatter::CURRENCY);
echo 'UK: ', $formatter->formatCurrency($amount, 'EUR'), PHP_EOL;
$formatter = new NumberFormatter('de_DE', NumberFormatter::CURRENCY);
echo 'DE: ', $formatter->formatCurrency($amount, 'EUR'), PHP_EOL;
which prints :
UK: €12,345.67
DE: 12.345,67 €
Quoting from the language specs:Iota
Within a constant declaration, the predeclared identifier iota represents successive untyped integer constants. It is reset to 0 whenever the reserved word const appears in the source and increments after each ConstSpec. It can be used to construct a set of related constants:
const ( // iota is reset to 0
c0 = iota // c0 == 0
c1 = iota // c1 == 1
c2 = iota // c2 == 2
)
const (
a = 1 << iota // a == 1 (iota has been reset)
b = 1 << iota // b == 2
c = 1 << iota // c == 4
)
const (
u = iota * 42 // u == 0 (untyped integer constant)
v float64 = iota * 42 // v == 42.0 (float64 constant)
w = iota * 42 // w == 84 (untyped integer constant)
)
const x = iota // x == 0 (iota has been reset)
const y = iota // y == 0 (iota has been reset)
Within an ExpressionList, the value of each iota is the same because it is only incremented after each ConstSpec:
const (
bit0, mask0 = 1 << iota, 1<<iota - 1 // bit0 == 1, mask0 == 0
bit1, mask1 // bit1 == 2, mask1 == 1
_, _ // skips iota == 2
bit3, mask3 // bit3 == 8, mask3 == 7
)
This last example exploits the implicit repetition of the last non-empty expression list.
So your code might be like
const (
A = iota
C
T
G
)
or
type Base int
const (
A Base = iota
C
T
G
)
if you want bases to be a separate type from int.
In my case I get items from XML-file with <string-array>
, where I store <item>
s. In these <item>
s I hold SQL strings and apply one-by-one with databaseBuilder.addMigrations(migration)
. I made one mistake, forgot to add \
before quote and got the exception:
android.database.sqlite.SQLiteException: no such column: some_value (code 1 SQLITE_ERROR): , while compiling: INSERT INTO table_name(id, name) VALUES(1, some_value)
So, this is a right variant:
<item>
INSERT INTO table_name(id, name) VALUES(1, \"some_value\")
</item>
function fnGetRandomColour(iDarkLuma, iLightLuma)
{
for (var i=0;i<20;i++)
{
var sColour = ('ffffff' + Math.floor(Math.random() * 0xFFFFFF).toString(16)).substr(-6);
var rgb = parseInt(sColour, 16); // convert rrggbb to decimal
var r = (rgb >> 16) & 0xff; // extract red
var g = (rgb >> 8) & 0xff; // extract green
var b = (rgb >> 0) & 0xff; // extract blue
var iLuma = 0.2126 * r + 0.7152 * g + 0.0722 * b; // per ITU-R BT.709
if (iLuma > iDarkLuma && iLuma < iLightLuma) return sColour;
}
return sColour;
}
For pastel, pass in higher luma dark/light integers - ie fnGetRandomColour(120, 250)
Credits: all credits to http://paulirish.com/2009/random-hex-color-code-snippets/ stackoverflow.com/questions/12043187/how-to-check-if-hex-color-is-too-black
package lecture3;
import java.util.Scanner;
public class divisibleBy2and5 {
public static void main(String[] args) {
// TODO Auto-generated method stub
System.out.println("Enter an integer number:");
Scanner input = new Scanner(System.in);
int x;
x = input.nextInt();
if (x % 2==0){
System.out.println("The integer number you entered is divisible by 2");
}
else{
System.out.println("The integer number you entered is not divisible by 2");
if(x % 5==0){
System.out.println("The integer number you entered is divisible by 5");
}
else{
System.out.println("The interger number you entered is not divisible by 5");
}
}
}
}
In matplotlib grey colors can be given as a string of a numerical value between 0-1.
For example c = '0.1'
Then you can convert your third variable in a value inside this range and to use it to color your points.
In the following example I used the y position of the point as the value that determines the color:
from matplotlib import pyplot as plt
x = [1, 2, 3, 4, 5, 6, 7, 8, 9]
y = [125, 32, 54, 253, 67, 87, 233, 56, 67]
color = [str(item/255.) for item in y]
plt.scatter(x, y, s=500, c=color)
plt.show()
You can load your External JS files in Angular and you can load them directly instead of defining in index.html file.
component.ts:
ngOnInit() {
this.loadScripts();
}
loadScripts() {
const dynamicScripts = [
//scripts to be loaded
"assets/lib/js/hand-1.3.8.js",
"assets/lib/js/modernizr.jr.js",
"assets/lib/js/jquery-2.2.3.js",
"assets/lib/js/jquery-migrate-1.4.1.js",
"assets/js/jr.utils.js"
];
for (let i = 0; i < dynamicScripts.length; i++) {
const node = document.createElement('script');
node.src = dynamicScripts[i];
node.type = 'text/javascript';
node.async = false;
document.getElementById('scripts').appendChild(node);
}
}
component.html:
<div id="scripts">
</div>
You can also load styles similarly.
component.ts:
ngOnInit() {
this.loadStyles();
}
loadStyles() {
const dynamicStyles = [
//styles to be loaded
"assets/lib/css/ui.css",
"assets/lib/css/material-theme.css",
"assets/lib/css/custom-style.css"
];
for (let i = 0; i < dynamicStyles.length; i++) {
const node = document.createElement('link');
node.href = dynamicStyles[i];
node.rel = 'stylesheet';
document.getElementById('styles').appendChild(node);
}
}
component.html:
<div id="styles">
</div>
I was searching after a toggling method that does the same, except for an inital value of null
or undefined
, where it should become false
.
Here it is:
booly = !(booly != false)
I just ran into this and was frustrating. My setup: The header was set to Content-Type: application/JSON and was passing the info from the body with JSON format, and was reading [FromBody] on the controller.
Everything was set up fine and I expect it to work, but the problem was with the JSON sent over. Since it was a complex structure, one of my classes which was defined 'Abstract' was not getting initialized and hence the values weren't assigned to the model properly. I removed the abstract keyword and it just worked..!!!
One tip, the way I could figure this out was to send data in parts to my controller and check when it becomes null... since it was a complex model I was appending one model at a time to my request params. Hope it helps someone who runs into this stupid issue.
Here in 2017, Promises are built into JavaScript, they were added by the ES2015 spec (polyfills are available for outdated environments like IE8-IE11). The syntax they went with uses a callback you pass into the Promise
constructor (the Promise
executor) which receives the functions for resolving/rejecting the promise as arguments.
First, since async
now has a meaning in JavaScript (even though it's only a keyword in certain contexts), I'm going to use later
as the name of the function to avoid confusion.
Using native promises (or a faithful polyfill) it would look like this:
function later(delay) {
return new Promise(function(resolve) {
setTimeout(resolve, delay);
});
}
Note that that assumes a version of setTimeout
that's compliant with the definition for browsers where setTimeout
doesn't pass any arguments to the callback unless you give them after the interval (this may not be true in non-browser environments, and didn't used to be true on Firefox, but is now; it's true on Chrome and even back on IE8).
If you want your function to optionally pass a resolution value, on any vaguely-modern browser that allows you to give extra arguments to setTimeout
after the delay and then passes those to the callback when called, you can do this (current Firefox and Chrome; IE11+, presumably Edge; not IE8 or IE9, no idea about IE10):
function later(delay, value) {
return new Promise(function(resolve) {
setTimeout(resolve, delay, value); // Note the order, `delay` before `value`
/* Or for outdated browsers that don't support doing that:
setTimeout(function() {
resolve(value);
}, delay);
Or alternately:
setTimeout(resolve.bind(null, value), delay);
*/
});
}
If you're using ES2015+ arrow functions, that can be more concise:
function later(delay, value) {
return new Promise(resolve => setTimeout(resolve, delay, value));
}
or even
const later = (delay, value) =>
new Promise(resolve => setTimeout(resolve, delay, value));
If you want to make it possible to cancel the timeout, you can't just return a promise from later
, because promises can't be cancelled.
But we can easily return an object with a cancel
method and an accessor for the promise, and reject the promise on cancel:
const later = (delay, value) => {
let timer = 0;
let reject = null;
const promise = new Promise((resolve, _reject) => {
reject = _reject;
timer = setTimeout(resolve, delay, value);
});
return {
get promise() { return promise; },
cancel() {
if (timer) {
clearTimeout(timer);
timer = 0;
reject();
reject = null;
}
}
};
};
Live Example:
const later = (delay, value) => {_x000D_
let timer = 0;_x000D_
let reject = null;_x000D_
const promise = new Promise((resolve, _reject) => {_x000D_
reject = _reject;_x000D_
timer = setTimeout(resolve, delay, value);_x000D_
});_x000D_
return {_x000D_
get promise() { return promise; },_x000D_
cancel() {_x000D_
if (timer) {_x000D_
clearTimeout(timer);_x000D_
timer = 0;_x000D_
reject();_x000D_
reject = null;_x000D_
}_x000D_
}_x000D_
};_x000D_
};_x000D_
_x000D_
const l1 = later(100, "l1");_x000D_
l1.promise_x000D_
.then(msg => { console.log(msg); })_x000D_
.catch(() => { console.log("l1 cancelled"); });_x000D_
_x000D_
const l2 = later(200, "l2");_x000D_
l2.promise_x000D_
.then(msg => { console.log(msg); })_x000D_
.catch(() => { console.log("l2 cancelled"); });_x000D_
setTimeout(() => {_x000D_
l2.cancel();_x000D_
}, 150);
_x000D_
Usually you'll have a promise library (one you write yourself, or one of the several out there). That library will usually have an object that you can create and later "resolve," and that object will have a "promise" you can get from it.
Then later
would tend to look something like this:
function later() {
var p = new PromiseThingy();
setTimeout(function() {
p.resolve();
}, 2000);
return p.promise(); // Note we're not returning `p` directly
}
In a comment on the question, I asked:
Are you trying to create your own promise library?
and you said
I wasn't but I guess now that's actually what I was trying to understand. That how a library would do it
To aid that understanding, here's a very very basic example, which isn't remotely Promises-A compliant: Live Copy
<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<title>Very basic promises</title>
</head>
<body>
<script>
(function() {
// ==== Very basic promise implementation, not remotely Promises-A compliant, just a very basic example
var PromiseThingy = (function() {
// Internal - trigger a callback
function triggerCallback(callback, promise) {
try {
callback(promise.resolvedValue);
}
catch (e) {
}
}
// The internal promise constructor, we don't share this
function Promise() {
this.callbacks = [];
}
// Register a 'then' callback
Promise.prototype.then = function(callback) {
var thispromise = this;
if (!this.resolved) {
// Not resolved yet, remember the callback
this.callbacks.push(callback);
}
else {
// Resolved; trigger callback right away, but always async
setTimeout(function() {
triggerCallback(callback, thispromise);
}, 0);
}
return this;
};
// Our public constructor for PromiseThingys
function PromiseThingy() {
this.p = new Promise();
}
// Resolve our underlying promise
PromiseThingy.prototype.resolve = function(value) {
var n;
if (!this.p.resolved) {
this.p.resolved = true;
this.p.resolvedValue = value;
for (n = 0; n < this.p.callbacks.length; ++n) {
triggerCallback(this.p.callbacks[n], this.p);
}
}
};
// Get our underlying promise
PromiseThingy.prototype.promise = function() {
return this.p;
};
// Export public
return PromiseThingy;
})();
// ==== Using it
function later() {
var p = new PromiseThingy();
setTimeout(function() {
p.resolve();
}, 2000);
return p.promise(); // Note we're not returning `p` directly
}
display("Start " + Date.now());
later().then(function() {
display("Done1 " + Date.now());
}).then(function() {
display("Done2 " + Date.now());
});
function display(msg) {
var p = document.createElement('p');
p.innerHTML = String(msg);
document.body.appendChild(p);
}
})();
</script>
</body>
</html>
Use getattr
to get an attribute from a name in a string. In other words, get the instance as
instance = getattr(modul, class_name)()
We started finding some machines with IE 11 not playing video (via flash) after we set the emulation mode of our app (web browser control) to 110001. Adding the meta tag to our htm files worked for us.
Here are the steps to edit the commit message of a previous commit (which is not the most recent commit) using SourceTree for Windows version 1.5.2.0:
Select the commit immediately before the commit that you want to edit. For example, if I want to edit the commit with message "FOOBAR!" then I need to select the commit that comes right before it:
Right-click on the selected commit and click Rebase children...interactively
:
Select the commit that you want to edit, then click Edit Message
at the
bottom. In this case, I'm selecting the commit with the message "FOOBAR!":
Edit the commit message, and then click OK
. In my example, I've added
"SHAZBOT! SKADOOSH!"
When you return to interactive rebase window, click on OK
to finish the
rebase:
At this point, you'll need to force-push your new changes since you've rebased commits that you've already pushed. However, the current 1.5.2.0 version of SourceTree for Windows does not allow you to force-push through the GUI, so you'll need to use Git from the command line anyways in order to do that.
Click Terminal
from the GUI to open up a terminal.
From the terminal force-push with the following command,
git push origin <branch> -f
where <branch>
is the name of the branch that you want to push, and -f
means
to force the push. The force push will overwrite your commits on your
remote repo, but that's OK in your case since you said that you're not sharing
your repo with other people.
That's it! You're done!
The JavaScript Object()
constructor makes an Object that you can assign members to.
myObj = new Object()
myObj.key = value;
myObj[key2] = value2; // Alternative
On Error Resume Next means that On Error, It will resume to the next line to resume.
e.g. if you try the Try block, That will stop the script if a error occurred
The variable pCv is of type VARCHAR2 so when you concat the insert you aren't putting it inside single quotes:
EXECUTE IMMEDIATE 'INSERT INTO M'||pNum||'GR (CV, SUP, IDM'||pNum||') VALUES('''||pCv||''', '||pSup||', '||pIdM||')';
Additionally the error ORA-06512 raise when you are trying to insert a value too large in a column. Check the definiton of the table M_pNum_GR and the parameters that you are sending. Just for clarify if you try to insert the value 100 on a NUMERIC(2) field the error will raise.
If you are using NUnit one simple but effective demo is to run NUnit's own test suite(s) in front of them. Seeing a real test suite giving a codebase a workout is worth a thousand words...
By using Chrome or Opera
without any plugins, without writing any single XPath syntax character
;)
Just for fun, a quick and dirty search of *.txt files if the @christangrant answer is too much to type :-)
grep -r texthere .|grep .txt
This program has a functions for
Find Successor
class BNode{
int data;
BNode left, right;
public BNode(int data){
this.data = data;
this.left = null;
this.right = null;
}
}
public class BST {
static BNode root;
public int add(int value){
BNode newNode, current;
newNode = new BNode(value);
if(root == null){
root = newNode;
current = root;
}
else{
current = root;
while(current.left != null || current.right != null){
if(newNode.data < current.data){
if(current.left != null)
current = current.left;
else
break;
}
else{
if(current.right != null)
current = current.right;
else
break;
}
}
if(newNode.data < current.data)
current.left = newNode;
else
current.right = newNode;
}
return value;
}
public void inorder(BNode root){
if (root != null) {
inorder(root.left);
System.out.println(root.data);
inorder(root.right);
}
}
public boolean find(int value){
boolean flag = false;
BNode current;
current = root;
while(current!= null){
if(current.data == value){
flag = true;
break;
}
else if(current.data > value)
current = current.left;
else
current = current.right;
}
System.out.println("Is "+value+" present in tree? : "+flag);
return flag;
}
public void successor(int value){
BNode current;
current = root;
if(find(value)){
while(current.data != value){
if(value < current.data && current.left != null){
System.out.println("Node is: "+current.data);
current = current.left;
}
else if(value > current.data && current.right != null){
System.out.println("Node is: "+current.data);
current = current.right;
}
}
}
else
System.out.println(value+" Element is not present in tree");
}
public static void main(String[] args) {
BST b = new BST();
b.add(50);
b.add(30);
b.add(20);
b.add(40);
b.add(70);
b.add(60);
b.add(80);
b.add(90);
b.inorder(root);
b.find(30);
b.find(90);
b.find(100);
b.find(50);
b.successor(90);
System.out.println();
b.successor(70);
}
}
df <- data.frame(x=rnorm(10), y=rnorm(10))
rownames(df) <- letters[1:10]
df[c('a','b'),]
This code calculates days between 2 date Strings:
static final long MILLI_SECONDS_IN_A_DAY = 1000 * 60 * 60 * 24;
static final String DATE_FORMAT = "dd-MM-yyyy";
public long daysBetween(String fromDateStr, String toDateStr) throws ParseException {
SimpleDateFormat format = new SimpleDateFormat(DATE_FORMAT);
Date fromDate;
Date toDate;
fromDate = format.parse(fromDateStr);
toDate = format.parse(toDateStr);
return (toDate.getTime() - fromDate.getTime()) / MILLI_SECONDS_IN_A_DAY;
}
Use an absolutely positioned pseudo element:
ul:after {
content: '';
width: 0;
height: 100%;
position: absolute;
border: 1px solid black;
top: 0;
left: 100px;
}
Border-radius is now officially supported. So, in all of the above examples you may drop the "-moz-" prefix.
Another trick is to use the same color for the top and bottom rows as is your border. With all 3 colors the same, it blends in and looks like a perfectly rounded table even though it isn't physically.
With Hibernate's NativeQuery, you need to return a ResultList instead of a SingleResult, because Hibernate modifies a native query
INSERT INTO bla (a,b) VALUES (2,3) RETURNING id
like
INSERT INTO bla (a,b) VALUES (2,3) RETURNING id LIMIT 1
if you try to get a single result, which causes most databases (at least PostgreSQL) to throw a syntax error. Afterwards, you may fetch the resulting id from the list (which usually contains exactly one item).
N 1.1's answer is correct. In addition, I've written a small JavaScript function to extract the current link from a list, which will save you the trouble of modifying each page to know its current link.
<script type="text/javascript">
function getCurrentLinkFrom(links){
var curPage = document.URL;
curPage = curPage.substr(curPage.lastIndexOf("/")) ;
links.each(function(){
var linkPage = $(this).attr("href");
linkPage = linkPage.substr(linkPage.lastIndexOf("/"));
if (curPage == linkPage){
return $(this);
}
});
};
$(document).ready(function(){
var currentLink = getCurrentLinkFrom($("navbar a"));
currentLink.addClass("current_link") ;
});
</script>
Check your line endings! If you see an error about the file not being found, followed by this "premature of end headers" error in your Apache log - it may be that you have Windows line endings in your script in instead of Unix style. I ran into that problem / solution.
You should, as a rule, leave timestamps in the database in GMT, and only convert them to/from local time on input/output, when you can convert them to the user's (not server's) local timestamp.
It would be nice if you could do the following:
SELECT DATETIME(col, 'PDT')
...to output the timestamp for a user on Pacific Daylight Time. Unfortunately, that doesn't work. According to this SQLite tutorial, however (scroll down to "Other Date and Time Commands"), you can ask for the time, and then apply an offset (in hours) at the same time. So, if you do know the user's timezone offset, you're good.
Doesn't deal with daylight saving rules, though...
It is an old question but i want to add that if you want to resize image according to viewport size only with css; you can use viewport units "vh (viewport height) or vw (viewport width)".
.img {
width: 100vw;
height: 100vh;
}