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How can I be notified when an element is added to the page?
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There's a promising javascript library called Arrive that looks like a great way to start taking advantage of the mutation observers once the browser support becomes commonplace.
https://github.com/uzairfarooq/arrive/
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Regular expression to match a dot
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In javascript you have to use \. to match a dot.
Example
"blah.tests.zibri.org".match('test\\..*')
null
and
"blah.test.zibri.org".match('test\\..*')
["test.zibri.org", index: 5, input: "blah.test.zibri.org", groups: undefin...
Performing regex Queries with pymongo
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Actually, what you have here is also the way it's done in javascript (and probably other languages too) if you use $regex. @Eric's answer is the python way that's a little different.
– drevicko
Aug 13 '13 at 23:33
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Changing three.js background to transparent or other color
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I came across this when I started using three.js as well. It's actually a javascript issue. You currently have:
renderer.setClearColorHex( 0x000000, 1 );
in your threejs init function. Change it to:
renderer.setClearColorHex( 0xffffff, 1 );
Update: Thanks to HdN8 for the updated solution:
r...
How to get the anchor from the URL using jQuery?
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not every javascript problem needs to be solved with jquery.
– doxin
Dec 27 '15 at 17:56
22
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Performance - Date.now() vs Date.getTime()
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@Taurus modern JavaScript runtimes are extremely good at object creation and garbage collection. Unless you're working on some sort of real-time game kernel, there's no reason at all to worry about it. Write code that looks good and isn't f...
Get an array of list element contents in jQuery
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And in clean javascript:
var texts = [], lis = document.getElementsByTagName("li");
for(var i=0, im=lis.length; im>i; i++)
texts.push(lis[i].firstChild.nodeValue);
alert(texts);
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What's the best UI for entering date of birth? [closed]
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You should take a look at Datejs.
Datejs is an open-source JavaScript Date Library.
Comprehensive, yet simple, stealthy and fast. Datejs has passed all
trials and is ready to strike. Datejs doesn’t just parse strings, it
slices them cleanly in two.
How to unset max-height?
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Just a note, if you're using JavaScript to style the element like $el.style.maxHeight = '50px'; using $el.style.maxHeight = 'none'; will not "reset" or "remove" the 50px, it will simply override it. This means that if you try to "reset" the max height of...
setTimeout / clearTimeout problems
.... I use jQuery for the rest but the set/clear in my test function are pure javascript.
7 Answers
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