Replace occurrences of space in URL

Some time developer face issue to validate or perfect in URL below code help you create a correct URL.

I want to replace the spaces with '%20'.

The correct format for replacing space from url is :

Objective C

NSString *urlString;//your url string.

urlString = [originalUrl stringByReplacingOccurrencesOfString:@" " withString:@"%20"];

or

urlString = [originalUrl stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

iOS 9 and later

urlString = [originalUrl stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLQueryAllowedCharacterSet]];

Swift :

var originalUrl = "https://google.co.in"
var urlString :String = originalUrl.stringByReplacingPercentEscapesUsingEncoding(NSUTF8StringEncoding)!

ios 9 and later

var urlString :String = originalUrl.stringByAddingPercentEncodingWithAllowedCharacters(NSCharacterSet.URLQueryAllowedCharacterSet())!

Swift 4

var urlString = originalString.addingPercentEncoding(withAllowedCharacters: CharacterSet.urlQueryAllowed)