Find the shortest string in an array - JavaScript

We are required to write a JavaScript function that takes in an array of strings and returns the index of string that is shortest in length.

We will simply use a for loop and persist the index of string which is shortest in length.

Example

Following is the code −

const arr = ['this', 'can', 'be', 'some', 'random', 'sentence'];
const findSmallest = arr => {
   const creds = arr.reduce((acc, val, index) => {
      let { ind, len } = acc;
      if(val.length < len){
         len = val.length;
         ind = index;
      };
      return { ind, len };
   }, {
      ind: -1,
      len: Infinity
   });
   return arr[creds['ind']];
};
console.log(findSmallest(arr));

Output

This will produce the following output in console −

be

AmitDiwan

Published on 30-Sep-2020 17:13:24