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Best practices for reducing Garbage Collector activity in Javascript
...ys into lookup tables and dynamic DOM node IDs. For example, lookupTable['foo-' + x] and document.getElementById('foo-' + x) both involve an allocation since there is a string concatenation. Often you can attach keys to long-lived objects instead of re-concatenating. Depending on the browsers you...
What are the typical reasons Javascript developed on Firefox fails on IE? [closed]
...head when split is first called.)
Commas before the end of objects: e.g. {'foo': 'bar',} aren't allowed in IE.
Element-specific issues:
Getting the document of an IFrame:
Firefox and IE8+: IFrame.contentDocument (IE started supporting this from version 8.)
IE: IFrame.contentWindow.document
(...
What is Mocking?
... the implementation details of your class/functions.
Simple example:
class Foo {
func add (num1: Int, num2: Int) -> Int { // Line A
return num1 + num2 // Line B
}
}
let unit = Foo() // unit under test
assertEqual(unit.add(1,5),6)
As you can see, I'm not testing LineA ie I'm not...
How to avoid using Select in Excel VBA
... code is to open a book, get some data then close again
This is bad:
Sub foo()
Dim v as Variant
Workbooks("Book1.xlsx").Sheets(1).Range("A1").Clear
Workbooks.Open("C:\Path\To\SomeClosedBook.xlsx")
v = ActiveWorkbook.Sheets(1).Range("A1").Value
Workbooks("SomeAlreadyOpenBook.xls...
Good NumericUpDown equivalent in WPF? [closed]
...lements:SpinDecorator>
<WpfElements:IntegerTextBox Text="{Binding Foo}" />
</WpfElements:SpinDecorator>
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How does Access-Control-Allow-Origin header work?
...request, in a nutshell it is an HTTP OPTIONS request:
OPTIONS DomainB.com/foo.aspx HTTP/1.1
If foo.aspx supports OPTIONS HTTP verb, it might return response like below:
HTTP/1.1 200 OK
Date: Wed, 01 Mar 2011 15:38:19 GMT
Access-Control-Allow-Origin: http://DomainA.com
Access-Control-Allow-Method...
Number.sign() in javascript
...(0); // 0
Math.sign(-0); // -0
Math.sign(NaN); // NaN
Math.sign('foo'); // NaN
Math.sign(); // NaN
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Alias with variable in bash [duplicate]
...ork, but if the following:
In ~/.bashrc add:
sendpic () { scp "$@" mina@foo.bar.ca:/www/misc/Pictures/; }
Save the file and reload
$ source ~/.bashrc
And execute:
$ sendpic filename.jpg
original source: http://www.linuxhowtos.org/Tips%20and%20Tricks/command_aliases.htm
...
“Single-page” JS websites and SEO
...by the server and take over from there.
Here's an example:
<form id="foo">
Name: <input id="name"><button id="say">Say My Name!</button>
</form>
After the server renders this, the JavaScript would pick it up (using a Backbone.js view in this example)
FooView = B...
How can I get seconds since epoch in Javascript?
...since_epoch(){ return Math.floor( Date.now() / 1000 ) }
example use
foo = seconds_since_epoch();
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