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Check OS version in Swift?
I'm trying to check system information in Swift. I figured out, that it could be achieved by code:
19 Answers
...
Permutations in JavaScript?
...Arr = [],
usedChars = [];
function permute(input) {
var i, ch;
for (i = 0; i < input.length; i++) {
ch = input.splice(i, 1)[0];
usedChars.push(ch);
if (input.length == 0) {
permArr.push(usedChars.slice());
}
permute(input);
input.splice(i, 0, ch);
...
Replace multiple characters in one replace call
...
String.prototype.allReplace = function(obj) {
var retStr = this;
for (var x in obj) {
retStr = retStr.replace(new RegExp(x, 'g'), obj[x]);
}
return retStr;
};
console.log('aabbaabbcc'.allReplace({'a': 'h', 'b': 'o'}));
// console.log 'hhoohhoocc';
Why not chain, though? ...
How do you properly determine the current script directory in Python?
...er? According to this: stackoverflow.com/a/18489147 answer a cross-platform solution is abspath(getsourcefile(lambda:0))? Or is there something else I'm missing?
– Jeff Ellen
Jul 12 '18 at 6:04
...
How can I change the color of pagination dots of UIPageControl?
...view:pageControl];
Header file:
//
// PageControl.h
//
// Replacement for UIPageControl because that one only supports white dots.
//
// Created by Morten Heiberg <morten@heiberg.net> on November 1, 2010.
//
#import <UIKit/UIKit.h>
@protocol PageControlDelegate;
@interface PageC...
How to add a progress bar to a shell script?
...
for printf we would have to use this format: printf "#### (50%%)\r", it wouldn't work with single quotes and percent sign needs to be escaped.
– nurettin
Sep 10 '13 at 9:55
...
How to use __doPostBack()
...
You can try this in your web form with a button called btnSave for example:
<input type="button" id="btnSave" onclick="javascript:SaveWithParameter('Hello Michael')" value="click me"/>
<script type="text/javascript">
function SaveWithParame...
Declare and initialize a Dictionary in Typescript
...
Always forget this syntax for some reason!
– eddiewould
Jul 31 '18 at 4:04
16
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Why does using an Underscore character in a LIKE filter give me all the results?
... characters. Here you define the escape character with the escape keyword. For details see this link on Oracle Docs.
The '_' and '%' are wildcards in a LIKE operated statement in SQL.
The _ character looks for a presence of (any) one single character. If you search by columnName LIKE '_abc', it wi...
What is Autoloading; How do you use spl_autoload, __autoload and spl_autoload_register?
...o a stack/queue and call sequentially when a "new Class" is declared.
So for example:
spl_autoload_register('myAutoloader');
function myAutoloader($className)
{
$path = '/path/to/class/';
include $path.$className.'.php';
}
//-------------------------------------
$myClass = new MyClass...