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Finding # occurrences of a character in a string in Ruby
I'm looking for the Ruby method (1.9...) that can help me find the number of occurrences of a character in a string. I'm looking for all occurrences, not just the first one.
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Bootstrap dropdown sub menu missing
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Updated 2018
The dropdown-submenu has been removed in Bootstrap 3 RC. In the words of Bootstrap author Mark Otto..
"Submenus just don't have much of a place on the web right now, especially the mobile web. They will be removed wit...
Why does the JavaScript need to start with “;”?
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edited May 9 '14 at 20:41
SQLMason
3,1492626 silver badges3939 bronze badges
answered Mar 20...
Convert Pandas column containing NaNs to dtype `int`
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16 Answers
16
Active
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How to check that a string is an int, but not a double, etc.?
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185
How about using ctype_digit?
From the manual:
<?php
$strings = array('1820.20', '10002', ...
Make Heroku run non-master Git branch
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answered Jan 29 '13 at 22:54
jordelverjordelver
7,41211 gold badge2828 silver badges3737 bronze badges
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Can I make a function available in every controller in angular?
..."myApp">
<head>
<script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
<script src="http://code.angularjs.org/1.1.2/angular.min.js"></script>
<script type="text/javascript">
var myApp = angular.module('myApp', []);
myApp.factory...
What is the difference between children and childNodes in JavaScript?
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Understand that .children is a property of an Element. 1 Only Elements have .children, and these children are all of type Element. 2
However, .childNodes is a property of Node. .childNodes can contain any node. 3
A concrete example would be:
let el = document.createElement("di...
Cast an instance of a class to a @protocol in Objective-C
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172
The correct way to do this is to do:
if ([self.myViewController conformsToProtocol:@protocol(...
php - get numeric index of associative array
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answered Jul 29 '10 at 18:26
FoscoFosco
35.5k66 gold badges7777 silver badges9898 bronze badges
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