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Single vs Double quotes (' vs ")
...nt: Just did a quick test on a 1823 bytes js file (a random Backbone Model from a random application). The gzip output if all of the quotes are the same (either ' or ") was 809 bytes. Mixing them pushed the output up to 829 bytes. This may be irrelevant to you but that doesn't mean that it's irrelev...
How to make a Bootstrap accordion collapse when clicking the header div?
...eading {
cursor: pointer;
}
Here's a jsfiddle with the modified html from the Bootstrap 3 documentation.
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What does git push -u mean?
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"Upstream" would refer to the main repo that other people will be pulling from, e.g. your GitHub repo. The -u option automatically sets that upstream for you, linking your repo to a central one. That way, in the future, Git "knows" where you want to push to and where you want to pull from, so you c...
What does the exclamation mark do before the function?
...ould seem to warrant. The unary operator ! (also ~, - and +) disambiguates from a function declaration, and allows the parens at the end () to invoke the function in-place. This is often done to create a local scope / namespace for variables when writing modular code.
– Tom Aug...
How do I set the table cell widths to minimum except last column?
... wide column as the solution above works better for). I removed width: 99% from expand and added width: 1% to shrink and this solution worked well for me!
– Campbeln
Jun 13 '14 at 1:26
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How to unsubscribe to a broadcast event in angularJS. How to remove function registered via $on
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You need to store the returned function and call it to unsubscribe from the event.
var deregisterListener = $scope.$on("onViewUpdated", callMe);
deregisterListener (); // this will deregister that listener
This is found in the source code :) at least in 1.0.4. I'll just post the full code...
How to correctly use “section” tag in HTML5?
...ok (although it certainly can be styled or "scripted").
A better example, from my understanding, might look something like this:
<div id="content">
<article>
<h2>How to use the section tag</h2>
<section id="disclaimer">
<h3>Disclaimer</h3...
How do I declare a namespace in JavaScript?
...bout expanding no further than the one root variable. Everything must flow from this.
– annakata
May 19 '09 at 8:54
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Elegant way to invert a map in Scala
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Mathematically, the mapping might not be invertible (injective), e.g., from Map[A,B], you can't get Map[B,A], but rather you get Map[B,Set[A]], because there might be different keys associated with same values. So, if you are interested in knowing all the keys, here's the code:
scala> val m...
What is a “Bitmap heap scan” in a query plan?
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The best explanation comes from Tom Lane, which is the algorithm's author unless I'm mistaking. See also the wikipedia article.
In short, it's a bit like a seq scan. The difference is that, rather than visiting every disk page, a bitmap index scan AND...