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Can a for loop increment/decrement by more than one?
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Use the += assignment operator:
for (var i = 0; i < myVar.length; i += 3) {
Technically, you can place any expression you'd like in the final expression of the for loop, but it is typically used to update the counter variable.
For more information about each step ...
Remove not alphanumeric characters from string
...ut string:
input.replace(/\W/g, '')
Note that \W is the equivalent of [^0-9a-zA-Z_] - it includes the underscore character. To also remove underscores use e.g.:
input.replace(/[^0-9a-z]/gi, '')
The input is malformed
Since the test string contains various escaped chars, which are not alphanum...
Convert character to ASCII numeric value in java
...ave String name = "admin";
then I do String charValue = name.substring(0,1); //charValue="a"
22 Answers
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In Gradle, is there a better way to get Environment Variables?
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thoredgethoredge
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Pass An Instantiated System.Type as a Type Parameter for a Generic Class
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220
You can't do this without reflection. However, you can do it with reflection. Here's a complete ...
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...
'str' object does not support item assignment in Python
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105
In Python, strings are immutable, so you can't change their characters in-place.
You can, howe...
Creating functions in a loop
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edited Mar 10 '19 at 19:30
Aran-Fey
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How to fix Array indexOf() in JavaScript for Internet Explorer browsers
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10 Answers
10
Active
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How do I check whether a jQuery element is in the DOM?
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Like this:
if (!jQuery.contains(document, $foo[0])) {
//Element is detached
}
This will still work if one of the element's parents was removed (in which case the element itself will still have a parent).
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