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Express next function, what is it really for?
...tes in between, but sometimes next is called without arguments. Anybody knows of a good tutorial etc that describes the next function?
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How do you downgrade rubygems?
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Updated November 2011: Now that RVM's out, try running rvm install rubygems <version>.
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Best way to trim strings after data entry. Should I create a custom model binder?
... explicitly trimming every user supplied string value. I'm interested to know how and when people are trimming strings.
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Make xargs execute the command once for each line of input
... away with tr, but they are not available on OS X and other UNIX systems.
Now for the long explanation…
There are two issues to take into account when using xargs:
how does it split the input into "arguments"; and
how many arguments to pass the child command at a time.
To test xargs' behav...
Difference between Node object and Element object?
...(not any node, only Elements). A number of properties or methods in HTML5 now return an HTMLCollection. While it is very similar in interface to a nodeList, a distinction is now made in that it only contains Elements, not any type of node.
The distinction between a nodeList and an HTMLCollection ...
How to install gem from GitHub source?
... => 'yourbranch', your this line has solved a great problem for me just now. So much Grateful to you.
– K M Rakibul Islam
Mar 14 '13 at 15:00
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Detect if a page has a vertical scrollbar?
...a solution that "just works" (cough). The algorithm I have come up with is now part of a plugin, jQuery.isInView, which exposes a .hasScrollbar method. Have a look at the source if you wish.
In a scenario where you are in full control of the page and don't have to deal with unknown CSS, using a pl...
Cannot run Eclipse; JVM terminated. Exit code=13
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I feel really stupid now, downloading both 64-bit eclipse and jdk but still trying to specify with x86.... At least i'm not alone xD
– AmazingDreams
Nov 3 '12 at 10:16
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How do I create and read a value from cookie?
...name, value, days = 7, path = '/') => {
const expires = new Date(Date.now() + days * 864e5).toUTCString()
document.cookie = name + '=' + encodeURIComponent(value) + '; expires=' + expires + '; path=' + path
}
const getCookie = (name) => {
return document.cookie.split('; ').reduce((r, v)...
Swift and mutating struct
...e manner with proper performance. They may add this feature later, but not now at least.
For Objective-C programmers, mutable/immutable concepts are very familiar. In Objective-C we had two separated classes for each concept, but in Swift, you can do this with one struct. Half work.
For C/C++ prog...