Hyphen string to camelCase string in JavaScript

Suppose, we have a string that contains words separated by hyphens like this −

const str = 'this-is-an-example';

We are required to write a JavaScript function that takes in one such string and converts it into a camelCase string.

For the above string, the output should be −

const output = 'thisIsAnExample';

The code for this will be −

const str = 'this-is-an-example'; const changeToCamel = str => {    let newStr = '';    newStr = str    .split('-')    .map((el, ind) => {       return ind && el.length ? el[0].toUpperCase() + el.substring(1)       : el;    })    .join('');    return newStr; }; console.log(changeToCamel(str));

Following is the output on console −

thisIsAnExample