Question

How to split a string on the last occurrence of a substring in JavaScript

Answer 1

const str = 'c++ typescript c++ javascript c++ node.js';

const lastIndex = str.lastIndexOf("c++");

const before = str.slice(0, lastIndex);
console.log(before); 

const after = str.slice(lastIndex);
console.log(after); 

  
  
  
  
/*
run:
  
"c++ typescript c++ javascript "
"c++ node.js"
  
*/

 

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