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How to concatenate two numbers in javascript?
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var value = "" + 5 + 6;
alert(value);
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Why does a RegExp with global flag give wrong results?
...ew RegExp(query, 'gi');
var result = [];
result.push(re.test('Foo Bar'));
alert(re.lastIndex);
result.push(re.test('Foo Bar'));
If you don't want to manually reset lastIndex to 0 after every test, just remove the g flag.
Here's the algorithm that the specs dictate (section 15.10.6.2):
RegEx...
Angular JS break ForEach
...'s expecting false to break the loop.
Example for some:
var ary = ["JavaScript", "Java", "CoffeeScript", "TypeScript"];
ary.some(function (value, index, _ary) {
console.log(index + ": " + value);
return value === "JavaScript";
});
Example for every:
var ary = ["JavaScript", "Java", "C...
Django dynamic model fields
... nesting is possible. Complex indexes may require manually creation (or a scripted migration).
>>> Something.objects.filter(data__a=1)
>>> Something.objects.filter(data__nested__c=3)
>>> Something.objects.filter(data__has_key='a')
Django MongoDB
Or other NoSQL Django a...
Using the rJava package on Win7 64 bit with R
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adding that script to remove the JAVA_HOME var worked for me!
– Richard
Aug 10 '14 at 18:21
1
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What does $@ mean in a shell script?
What does a dollar sign followed by an at-sign ( @ ) mean in a shell script?
6 Answers
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Capture HTML Canvas as gif/jpg/png/pdf?
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e.g.
<canvas id=canvas width=200 height=200></canvas>
<script>
window.onload = function() {
var canvas = document.getElementById("canvas");
var context = canvas.getContext("2d");
context.fillStyle = "green";
context.fillRect(50, 50...
RSpec controller testing - blank response.body
... =~ /Invalid email or password/
might be an equivalent check to:
flash[:alert].should == "Invalid email or password"
To me the latter seems a bit more flexible as it will run either way, but it may not be appropriate in all cases.
Cheers,
John
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How to stop a PowerShell script on the first error?
I want my PowerShell script to stop when any of the commands I run fail (like set -e in bash). I'm using both Powershell commands ( New-Object System.Net.WebClient ) and programs ( .\setup.exe ).
...
how to use ng-option to set default value of select element
... not answer this question explicitly, but it is there. If you look at the script.js, you will see this:
function MyCntrl($scope) {
$scope.colors = [
{name:'black', shade:'dark'},
{name:'white', shade:'light'},
{name:'red', shade:'dark'},
{name:'blue', shade:'dark'},
{name:'ye...