find replace string javascript code example
Example 1: javascript replace string
var str = "JavaScript replace method test";
var res = str.replace("test", "success");
//res = Javscript replace method success
Example 2: replacing characters in string javascript
var myStr = 'this,is,a,test';
var newStr = myStr.replace(/,/g, '-');
console.log( newStr ); // "this-is-a-test"
Example 3: javascript replace
const p = 'dog dog cat rat';
const regex = /dog/gi;
console.log(p.replace(regex, 'cow'));
//if pattern is regular expression all matches will be replaced
//output: "cow cow cat rat"
console.log(p.replace('dog', 'cow'));
// If pattern is a string, only the first occurrence will be replaced.
//output: "cow dog cat rat"