The String search() method

Return the position of the first occurrence of the string passed as parameter in the current string.

It returns the index of the start of the occurrence, or -1 if no occurrence is found.

'JavaScript'.search('Script') //4
'JavaScript'.search('TypeScript') //-1

You can search using a regular expression (and in reality, even if you pass a string, that’s internally and transparently used as a regular expression too).

'JavaScript'.search(/Script/) //4
'JavaScript'.search(/script/i) //4
'JavaScript'.search(/a+v/) //1

More js tutorials:

• JavaScript, how to export multiple functions
• The Object getOwnPropertySymbols() method
• The Object create() method
• What's the difference between a method and a function?
• How to get the last segment of a path or URL using JavaScript
• How to trim the leading zero in a number in JavaScript
• JavaScript Scope
• Arrow functions vs regular functions in JavaScript
• Semicolons in JavaScript