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How do you use a variable in a regular expression?
...replace a pattern combined with a regular string, do str.match(new RegExp("https?://" + RegExp.escape(myDomainName)), for instance. It's annoying that the escape function is not built in.
– Gracenotes
Jan 30 '09 at 19:57
...
Check if image exists on server using JavaScript?
...proach is to use ES6 Fetch API to check if an image exists or not:
fetch('https://via.placeholder.com/150', { method: 'HEAD' })
.then(res => {
if (res.ok) {
console.log('Image exists.');
} else {
console.log('Image does not exist.');
}
}).c...
How do I horizontally center a span element inside a div
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Bash history without line numbers
...(as well as other options for history formatting)
zsh> fc -ln 0
(See https://serverfault.com/questions/114988/removing-history-or-line-numbers-from-zsh-history-file)
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How to execute a Python script from the Django shell?
...e is not enough.
After some digging, I found this Stack Overflow answer: https://stackoverflow.com/a/23241093
You now need to:
import os, django
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "myapp.settings")
django.setup()
# now your code can go here...
Without doing the above, I was gettin...
How to increase the max upload file size in ASP.NET?
...t;
</security>
</system.webServer>
MSDN Reference link : https://msdn.microsoft.com/en-us/library/e1f13641(VS.80).aspx
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How to trigger a click on a link using jQuery
...lt;!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script>
$(document).ready(function(){
$("input").select(function(){
$("input").after(" Text marked!");
...
What should be the values of GOPATH and GOROOT?
...should not point to the Go installation, but rather to your workspace (see https://golang.org/doc/code.html#GOPATH). Whenever you install some package with go get or go install, it will land within the GOPATH. That is why it warns you, that you most definitely do not want random packages from the in...
How to center canvas in html5
... transform: translate(-50%, -50%);
}
For more info visit: https://www.w3.org/Style/Examples/007/center.en.html
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Preserve line breaks in angularjs
...aries. More information about the white-space property can be found here:
https://developer.mozilla.org/en-US/docs/Web/CSS/white-space
If you want to break on newlines, but also collapse multiple spaces or white space preceeding the text (very similar to the original browser behaviour), you can us...