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Function in JavaScript that can be called only once
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If by "won't be executed" you mean "will do nothing when called more than once", you can create a closure:
var something = (function() {
var executed = false;
return function() {
if (!executed) {
executed = true;
// do something
}
...
Which version of C# am I using
... does not tell you the right version number - on my PC, .NET 4.6 RC is installed but Assembly.ImageRuntimeVersion reports v4.0.30319
– Matt
Jul 14 '15 at 10:55
1
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Is it safe to check floating point values for equality to 0?
... know you can't rely on equality between double or decimal type values normally, but I'm wondering if 0 is a special case.
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Is it okay to use now?
...owsers/phone that support this can assist the user and other browser will fall back to a standard text field? Is this an acceptable practice? Does it even work?
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Incomplete type is not allowed: stringstream
Why does this line give the error Error: incomplete type is not allowed ?
3 Answers
3...
How to change to an older version of Node.js
...nvm
curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.34.0/install.sh | bash
You can find it at https://github.com/creationix/nvm
It allows you to easily install and manage multiple versions of node. Here's a snippet from the help:
Usage:
nvm install <version> Download a...
Spring schemaLocation fails when there is no internet connection
...ks even though intellij doesn't recognize the classpath syntax inside schemalLocation and highlights it as a error.
– Upgradingdave
Feb 27 '13 at 19:33
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Solutions for distributing HTML5 applications as desktop applications? [closed]
...ite native apps in HTML and JavaScript with node-webkit. It also lets you call Node.js modules directly from the DOM and enables a new way of writing native applications with all Web technologies.
Intel is behind this (?). I've been told it's very rough around the edges.
Brackets Shell, the sandbo...
How can I close a Twitter Bootstrap popover with a click from anywhere (else) on the page?
... when you click the element marked with 'popup-marker'. So you'll have to call stopPropagation() on the event object. And apply the same trick when clicking on the popover itself.
Below is a working JavaScript code that does this. It uses jQuery >= 1.7
jQuery(function() {
var isVisible = fa...
What is the syntax for “not equal” in SQLite?
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You can use <> operator
You will find here all the basic sql statements
http://www.firstsql.com/tutor2.htm
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