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What is the meaning of polyfills in HTML5?
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A polyfill is a shim which replaces the original call with the call to a shim.
For example, say you want to use the navigator.mediaDevices object, but not all browsers support this. You could imagine a library that provided a shim which you might use like this:
<script...
How do I remove the first characters of a specific column in a table?
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Is it safe to call this on a NULL column? Would would happen in this case?
– Ian R. O'Brien
Dec 6 '12 at 17:45
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php execute a background process
...ver-side script in whatever language (php/bash/perl/etc) is handy and then call it from the process control functions in your php script.
The function probably detects if standard io is used as the output stream and if it is then that will set the return value..if not then it ends
proc_close( pro...
Why is Java's AbstractList's removeRange() method protected?
...code. Instead, do this:
list.subList(start, end).clear();
This actually calls removeRange behind the scenes.†
The OP asks why removeRange is not part of the List public API. The reason is described in Item 40 of Effective Java 2nd ed, and I quote it here:
There are three techniques for s...
How to determine height of UICollectionView with FlowLayout
...ionView.
The simple and easy solution lies in the underlying layout: Just call collectionViewContentSize on your myCollectionView.collectionViewLayout property and you get the height and width of the content as CGSize. It's as easy as that.
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jQuery event handlers always execute in order they were bound - any way around this? [duplicate]
...ry exposes all event handlers through an element's data interface. Specifically element.data('events'). Using this you could always write a simple plugin whereby you could insert any event handler at a specific position.
Here's a simple plugin that does just that to insert a handler at the beginni...
Angular.js: How does $eval work and why is it different from vanilla eval?
... run arbitrary JavaScript code, you should make it a controller method and call the method. If you want to eval() an angular expression from JavaScript, use the $eval() method.
The docs linked to above have a lot more information.
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What is git actually doing when it says it is “resolving deltas”?
...sions are stored as delta-coded files when they are "loose" files. Periodically (either by calling git gc or whenever Git determines it necessary) Git will compress all the "loose" files into a packfile to save space and an index file into that packfile will be created. So zlib will compress with ...
What is Ad Hoc Query?
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Ad hoc is latin for "for this purpose". You might call it an "on the fly" query, or a "just so" query. It's the kind of SQL query you just loosely type out where you need it
var newSqlQuery = "SELECT * FROM table WHERE id = " + myId;
...which is an entirely different quer...
Matplotlib connect scatterplot points with line - Python
... It looks like you, Evert and kigurai are all right. You can call both scatter() and plot() before calling show(). Or just call plot() with the line and point attributes as Steve Barnes described. Thanks
– brno792
Nov 21 '13 at 22:31
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