Run results for: Character removal

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:68.0) Gecko/20100101 Firefox/68.0

Browser: Firefox 68

Operating system: Mac OS X 10.14

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
Using split + filter + join	521589.6 Ops/sec
Using RegExp global replace	1644390.0 Ops/sec

Script Preparation code:

var str = "this is a string with speciål chäräcters to remöve";
var badchars = ['å', 'ä', 'ö'];

function removeChars1 (str, badchars) {
  return str.split("").filter((chr) => badchars.indexOf(chr) === -1).join("");
}

function removeChars2 (str, badchars) {
  return str.replace( new RegExp("(" + badchars.join('|') + ")", "g"), "" );
}

Tests:

Using split + filter + join
var final = removeChars1(str, badchars);
Using RegExp global replace
var final = removeChars2(str, badchars);

Run results for: Character removal

Two approaches to remove characters from a string

Using split + filter + join

Using RegExp global replace