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Safe characters for friendly url [closed]
...he question, you should only allow these characters:
Lower case letters (convert upper case to lower)
Numbers, 0 through 9
A dash - or underscore _
Tilde ~
Everything else has a potentially special meaning. For example, you may think you can use +, but it can be replaced with a space. & is ...
Build tree array from flat array in javascript
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For anyone interested, the code is easily converted to vanilla js: jsfiddle.net/LkkwH/853
– xec
Apr 12 '18 at 9:58
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CSS display: table min-height not working
...my footer where it should be. Works great in Chrome, but not FF or the PDf converter I'm using; wkhtmltopdf. Yes, height works, but doesn't mean the same thing semantically as min-height.
– rainabba
Feb 4 '16 at 1:54
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Is there any difference between a GUID and a UUID?
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Note that if you want to convert from Microsoft's GUID binary representation to a standard UUID you'll have to flip endianness of the first three (of four) data fields as detailed in the "Binary encoding" section here: en.wikipedia.org/wiki/Globally_...
Event handling for iOS - how hitTest:withEvent: and pointInside:withEvent: are related?
...*subview in [self.subviews reverseObjectEnumerator]) {
CGPoint convertedPoint = [subview convertPoint:point fromView:self];
UIView *hitTestView = [subview hitTest:convertedPoint withEvent:event];
if (hitTestView) {
return hitTestView;
}...
For loop for HTMLCollection elements
...bed above.
Update for ES6 in 2015
Added to ES6 is Array.from() that will convert an array-like structure to an actual array. That allows one to enumerate a list directly like this:
"use strict";
Array.from(document.getElementsByClassName("events")).forEach(function(item) {
console.log(item.i...
get dictionary key by value
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types.Values.ToList().IndexOf("one");
Values.ToList() converts your dictionary values into a List of objects.
IndexOf("one") searches your new List looking for "one" and returns the Index which would match the index of the Key/Value pair in the dictionary.
This method does not ...
Recursive lambda functions in C++11
...0);
}
Trick here is that lambdas can access static variables and you can convert stateless ones to function pointer.
You can use it with standard lambdas:
void g()
{
int sum;
auto rec = [&sum](int i) -> int
{
static int (*inner)(int&, int) = [](int& _sum, int i...
Force add despite the .gitignore file
...me slash "/" works but backslash "\" doesn't. The fact that cmd/PowerShell convert "/" to "\" for us makes it easy to run into this.
– ohw
Oct 18 '15 at 22:47
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How to find the length of a string in R
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nchar(YOURSTRING)
you may need to convert to a character vector first;
nchar(as.character(YOURSTRING))
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