how to parse string js code example

Example 1: string to array javascript

const str = 'Hello!';

console.log(Array.from(str)); //  ["H", "e", "l", "l", "o", "!"]

Example 2: split array javascript

// Returns new array from exising one
arr.slice(start, end);

Example 3: javascript split

var names = 'Harry ;Fred Barney; Helen Rigby ; Bill Abel ;Chris Hand ';

console.log(names);

var re = /\s*(?:;|$)\s*/;
var nameList = names.split(re);

console.log(nameList);

Example 4: split() javascript

let countWords = function(sentence){
    return sentence.split(' ').length;
}

console.log(countWords('Type any sentence here'));

//result will be '4'(for words in the sentence)