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How do I run Asynchronous callbacks in Playground
...groundPage.current.needsIndefiniteExecution = true
let url = URL(string: "https://jsonplaceholder.typicode.com/posts/1")!
let task = URLSession.shared.dataTask(with: url) { (data, response, error) in
guard error == nil else {
print(error?.localizedDescription ?? "")
return
...
Create a CSS rule / class with jQuery at runtime
...
Here is a jquery plugin that allows you to inject CSS:
https://github.com/kajic/jquery-injectCSS
Example:
$.injectCSS({
"#my-window": {
"position": "fixed",
"z-index": 102,
"display": "none",
"top": "50%",
"left": "50%"
}
});
...
Generate random 5 characters string
...ile or something predictable like /dev/zero. mt_rand() considered harmful:
https://spideroak.com/blog/20121205114003-exploit-information-leaks-in-random-numbers-from-python-ruby-and-php
EDIT:
If you have OpenSSL support in PHP, you could use openssl_random_pseudo_bytes():
<?php
$length = 5;...
How to open a new window on form submit
...ery('form').on('submit',function(e){
setTimeout(function () { window.open('https://www.google.com','_blank');}, 1000);});})
This code works for me perfect..
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Can I define a class name on paragraph using Markdown?
...er.
A simple paragraph with a class attribute.
{:.yourClass}
Reference: https://kramdown.gettalong.org/syntax.html#inline-attribute-lists
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fol...
jquery if div id has children
...kground: #9f9;
}
.failure {
background: #f99;
}
<script src="https://code.jquery.com/jquery-1.12.2.min.js"></script>
<div id="test">
<span>Children</span>
</div>
<div id="test2">
No children
</div>
The vanilla JS way
If...
Maven: Non-resolvable parent POM
...t;
<name>internal repository</name>
<url>https://my/private/repo</url>
<layout>default</layout>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<ena...
Fixed page header overlaps in-page anchors
...html {
scroll-padding-top: 70px; /* height of sticky header */
}
from: https://css-tricks.com/fixed-headers-on-page-links-and-overlapping-content-oh-my/
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...
How does tuple comparison work in Python?
...l space, compared according to their length.
Note 3: referring to question https://stackoverflow.com/questions/36911617/python-2-tuple-comparison: do not think that a tuple is "greater" than another only if any element of the first is greater than the corresponding one in the second.
...
Cannot use identity column key generation with ( TABLE_PER_CLASS )
...to GenerationType.TABLE exactly as zoidbeck proposes.
Here is the video : https://www.youtube.com/watch?v=qIdM4KQOtH8
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