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Is PHP's count() function O(1) or O(n) for arrays?
...ng: PHP Count Performance. Although the length of the array is maintained by the array, it still seems as though it is faster to hold on to it if you are going to call count() many times.
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Is onload equal to readyState==4 in XMLHttpRequest?
...t URLs and see the actual sequence of events and readyState values as seen by the JavaScript app in different cases. The JS code is also listed below:
var xhr;
function test(url) {
xhr = new XMLHttpRequest();
xhr.addEventListener("readystatechange", function() { log(xhr, "readystatechange")...
Understanding MongoDB BSON Document size limit
...h as you might in a SQL database. I have used this to even store multi gigabyte video files.
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Getting an element from a Set
... be all about. In my case, I'd like to get some complex object from a set by key (String). This String is encapsulated (and unique) to the object being mapped. In fact, the whole object 'revolves' around said key. Furthermore, the caller knows said String, but not the object itself; that's exactly ...
How do you programmatically set an attribute?
... imageUploader: {
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...
php static function
...ntext.
Well, okay, one other difference: an E_STRICT warning is generated by your first example.
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How to run cron once, daily at 10pm
... imageUploader: {
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...
Why does CSS not support negative padding?
... other hand, is based on the inner dimensions of the targeted element. So, by applying the property of padding-top: -50%; we have shifted the content of the inner div upward by a distance of 50% of the height of the inner div's content, therefore centering the inner div's content within the outer di...
How to find out which JavaScript events fired?
... the right).
You can also view all events that have already been attached by simply right clicking on the element and then browsing its properties (the panel on the right).
For example:
Right click on the upvote button to the left
Select inspect element
Collapse the styles section (section on the...
Android Task Affinity Explanation
...VITY_NEW_TASK, the activity is then put into this particular task (defined by taskAffinity).
– Stan Mots
Jan 14 '17 at 16:42
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