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How to randomize (shuffle) a JavaScript array?
..., randomIndex;
// While there remain elements to shuffle...
while (0 !== currentIndex) {
// Pick a remaining element...
randomIndex = Math.floor(Math.random() * currentIndex);
currentIndex -= 1;
// And swap it with the current element.
temporaryValue = array[curr...
Using C# reflection to call a constructor
...ic Addition(int a)
{
Console.WriteLine("Constructor called, a={0}", a);
}
}
class Test
{
static void Main()
{
Type type = typeof(Addition);
ConstructorInfo ctor = type.GetConstructor(new[] { typeof(int) });
object instance = ctor.Invoke(new object[] {...
What is the “assert” function?
...
302
assert will terminate the program (usually with a message quoting the assert statement) if its ...
How to grab substring before a specified character jQuery or JavaScript
...
var streetaddress= addy.substr(0, addy.indexOf(','));
While it's not the best place for definitive information on what each method does (mozilla developer network is better for that) w3schools.com is good for introducing you to syntax.
...
Why is MATLAB so fast in matrix multiplication?
...nd matrix generation. When I perform matrix multiplication with MATLAB, 2048x2048 and even bigger matrices are almost instantly multiplied.
...
Javascript - How to extract filename from a file input control
...
130
Assuming your <input type="file" > has an id of upload this should hopefully do the trick:...
Calculate total seconds in PHP DateInterval
...
209
Could you not compare the time stamps instead?
$now = new DateTime('now');
$diff = $date->...
How do I check if a number is positive or negative in C#?
...
bool positive = number > 0;
bool negative = number < 0;
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How do you grep a file and get the next 5 lines
...
Some awk version.
awk '/19:55/{c=5} c-->0'
awk '/19:55/{c=5} c && c--'
When pattern found, set c=5
If c is true, print and decrease number of c
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OS X Terminal Colors [closed]
...o enable the global
terminal colors.
Edit your .bash_profile (since OS X 10.8) — or (for 10.7 and earlier): .profile or .bashrc or /etc/profile (depending on availability) — in your home directory and add following code:
export CLICOLOR=1
export LSCOLORS=GxFxCxDxBxegedabagaced
CLICOLOR=1 sim...