Gullele's Corner

How do you flatten array in javascript

If you are given an array that contains literals, arrays and objects and you want to get all the values to one array.

Here is the snippet using recursive function to attain that.

function implode(arr) {
	var res = [];
	for (var i =0; i < arr.length ; i++) {
    	if (Array.isArray(arr[i])) {
        	res = res.concat(implode(arr[i]));
		} else if(typeof arr[i] == 'object' ) {
			var values = Object.values(arr[i]);
        	for (var j = 0 ; j < values.length ; j++) {
            	if (!Array.isArray(values[j]) && typeof values[i] != 'object') {
					res.push(values[j]);
                }else{
                	res = res.concat(implode(values[j]));
				}
			}
		} else {
			res.push(arr[i]);
        }
	}
	return res;
}