Question

How to implement the function indexOfAny() in JavaScript

Answer 1

function indexOfAny(string, array) {
    let lowestIndex = -1;
 
    for (let i in array) {
        let index = string.indexOf(array[i]);
 
        if (index > -1) {
            if (lowestIndex == -1 || index < lowestIndex) {
                lowestIndex = index;
                if (index == 0) {
                    break;
                }
            }
        }
    }
  
    return lowestIndex;
}
 
const str = "javascript programming";
          
const i = indexOfAny(str, ['y', 'x', 'o']);
          
console.log(i);
 
 
 
 
 
/*
run:
  
13
  
*/

 

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