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Testing whether a value is odd or even
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Use modulus:
function isEven(n) {
return n % 2 == 0;
}
function isOdd(n) {
return Math.abs(n % 2) == 1;
}
You can check that any value in Javascript can be coerced to a number with:
Number.isFinite(parseFloat(n))
This check should preferably be done outside the isEv...
How can I validate a string to only allow alphanumeric characters in it?
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10 Answers
10
Active
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Get the client IP address using PHP [duplicate]
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ShivShiv
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38
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overlay opaque div over youtube iframe
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210
Information from the Official Adobe site about this issue
The issue is when you embed a youtube...
What does $$ mean in the shell?
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103
In Bash $$ is the process ID, as noted in the comments it is not safe to use as a temp filename...
How to redirect cin and cout to files?
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answered Apr 14 '12 at 5:30
NawazNawaz
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Django set default form values
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Jeremy Z
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answered Mar 2 '09 at 22:29
Sergey GolovchenkoSergey Golovchenk...
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...
Take a screenshot of a webpage with JavaScript?
...lic Const CaptWindow = 2
Public Sub ScreenGrab()
keybd_event &H12, 0, 0, 0
keybd_event &H2C, CaptWindow, 0, 0
keybd_event &H2C, CaptWindow, &H2, 0
keybd_event &H12, 0, &H2, 0
End Sub
That only gets you as far as getting the window to the clipboard.
Another opt...
recursively add file extension to all files
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edited Jul 10 '09 at 9:24
answered Jul 10 '09 at 9:14
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