Text Processing with JavaScript

search()

The search() method executes a search on a string and returns an integer indicating the index of the first match. If no match is found, the return value will be -1:

appendix/methods/methods_ex10.js

const str = "Eat well, stay fit, die anyway.";

// Using a string as the pattern
console.log(str.search("fit"));    // → 15

// Using a regular expression as the pattern
console.log(str.search(/fit/));    // → 15

Unlike exec() or test(), the search() method does not support the global flag and ignores the lastIndex property. This means it always executes a search from the beginning of the string and returns the index of the first match.