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js-mentorship-razvan / javascript

Javascript study notes
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Training JS #17: Methods of String object--indexOf(), lastIndexOf() and search() #500

Closed RazvanBugoi closed 4 years ago

RazvanBugoi commented 4 years ago

https://www.codewars.com/kata/57277a31e5e51450a4000010/train/javascript

RazvanBugoi commented 4 years ago 
function firstToLast(str,c){
  return str.includes(c) ? str.lastIndexOf(c) - str.indexOf(c) : -1;
}