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Delete specified file from document directory
...irectory, NSSearchPathDomainMask.UserDomainMask, true)
if paths.count > 0 {
let dirPath = paths[0]
let fileName = "someFileName"
let filePath = NSString(format:"%@/%@.png", dirPath, fileName) as String
if NSFileManager.defaultManager().fileExistsAtPath(filePath...
Remove multiple elements from array in Javascript/jQuery
...
removeValFromIndex = [0,2,4];
for (var i = removeValFromIndex.length -1; i >= 0; i--)
valuesArr.splice(removeValFromIndex[i],1);
Go through removeValFromIndex in reverse order and you can .splice() without messing up the indexes of the yet-to-be-removed items.
Note in the above I'...
How to remove the last character from a string?
...
public String method(String str) {
if (str != null && str.length() > 0 && str.charAt(str.length() - 1) == 'x') {
str = str.substring(0, str.length() - 1);
}
return str;
}
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Modifying a query string without reloading the page
...ation/link object
var urlparts= url.split('?');
if (urlparts.length>=2) {
var prefix= encodeURIComponent(parameter)+'=';
var pars= urlparts[1].split(/[&;]/g);
//reverse iteration as may be destructive
for (var i= pars.length; i-- > 0;) {
...
What is the best regular expression to check if a string is a valid URL?
...$&'\(\)\*\+,;=:@])|[\/\?])*)?)$/i
How they were compiled (in PHP):
<?php
/* Regex convenience functions (character class, non-capturing group) */
function cc($str, $suffix = '', $negate = false) {
return '[' . ($negate ? '^' : '') . $str . ']' . $suffix;
}
function ncg($str, $suffix =...
Why malloc+memset is slower than calloc?
...n)
// one byte at a time, until the dest is aligned...
while (len > 0 && ((unsigned int)dest & 15))
*dest++ = c
len -= 1
// now write big chunks at a time (processor-specific)...
// block size might not be 16, it's just pseudocode
while (len >= 1...
Navigation bar appear over the views with new iOS7 SDK
...check if the current iOS is 7 with this if: if (NSFoundationVersionNumber > NSFoundationVersionNumber_iOS_6_1)
– Aviel Gross
Oct 14 '13 at 8:40
add a comment
...
Keyboard shortcut to comment lines in Sublime Text 3
...ines with Ctrl + / and Ctrl + Shift + / . According to the menu Edit > Comment these shortcuts should be valid, but in Sublime Text 3 (build 3047) they no longer seem to work. Does anybody know the right default keyboard shortcuts for Linux and MacOS? Or is it a bug?
...
what are the .map files used for in Bootstrap 3.x?
...e loading source maps through the ChromeDev tools settings. Open DevTools > Click the settings gear > Uncheck Enable (JavaScript|CSS) source maps
– Giles Wells
Jun 25 '14 at 18:39
...
filter items in a python dictionary where keys contain a specific string
...lly not required, as you can pass a generator expression to map as well:
>>> map(lambda a: a[0]*a[1], ((k,v) for k,v in {2:2, 3:2}.iteritems() if k == 2))
[4]
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