Replace or remove all occurrences of a string
From CodeCodex
Contents |
[edit] Implementations
[edit] Java
Java has a built in function for replacing all occurrences of a string. This function accepts regular expressions, so you have to take care to escape characters that might have special meaning.
String s = "replace both x and x with a y";
int numberOfCommas = s.replaceAll("x","y");
Since Java 1.5, the following is a replace method that does not use regular expressions:
String s = "replace both x and x with a y";
int numberOfCommas = s.replace("x","y");
[edit] JavaScript
String does not have a replaceAll function in JavaScript. To create such a function, use the code below. This function accepts regular expressions.
String.prototype.replaceAll=function(s1, s2) {
return this.replace(new RegExp(s1,"g"), s2);
}
String.prototype.replaceAll=function(s1, s2) {
var str = this;
var pos = str.indexOf(s1);
while (pos > -1){
str = str.replace(s1, s2);
pos = str.indexOf(s1);
}
return (str);
}
To use this code:
text = 'replace both x and x with a y';
finalText = text.replaceAll('[x]','y');
[edit] OCaml
# let replace input output =
Str.global_replace (Str.regexp_string input) output;;
val replace : string -> string -> string -> string = <fun>
For example:
# replace "133t" "Elite" "133t H4x0r";; - : string = "Elite H4x0r"
[edit] Perl
This function accepts regular expressions.
s{1337}{Elite}g; # replace globally
[edit] PHP
$new_str = str_replace($remove_this, '', $input);
[edit] Python
new_str = input.replace("x", "y")
[edit] Ruby
This function accepts regular expressions.
str = "replace both x and x with a y"
new_str = str.gsub('x', 'y') # replace globally
[edit] Seed7
var string: s is "replace both x and x with a y";
s := replace(s, "x", "y");
