array.prototype.map - w3toppers.com

Unexpected comma using map()

Explanation template literals use the toString() method which by default joins the returned array by map with a ,. To avoid this “problem” you can use join(”) Code var description = [ ‘HTML & CSS’, ‘Javascript object-oriented programming’, ‘Progressive Web apps (PWAs)’, ‘Website Performance Optimization’, ‘Webpack and Gulp workflows’, ‘Fullstack React.js’, ‘Web Components’, ‘Responsive web … Read more

Array map function doesn’t change elements

JavaScript Array map() Method *)creates a new array with the results of calling a function for every array element and it calls the provided function once for each element in an array, in order. Note: map() Method does not execute the function for array elements without values and it does not change the original array. … Read more