each javascript

1var arr = ['one','two','three','four','five'];
2$.each(arr, function(index, value){
3	console.log('The value at arr[' + index + '] is: ' + value);
4});

1$( "li" ).each(function( index ) {
2  console.log( index + ": " + $( this ).text() );
3});

1const avengers = ['thor', 'captain america', 'hulk'];
2avengers.forEach((item, index)=>{
3	console.log(index, item)
4})

1//Array
2$.each( arr, function( index, value ){
3    sum += value;
4});
5
6//Object
7$.each( obj, function( key, value ) {
8    sum += value;
9});

1const fruits = ['mango', 'papaya', 'pineapple', 'apple'];
2
3// Iterate over fruits below
4
5// Normal way
6fruits.forEach(function(fruit){
7  console.log('I want to eat a ' + fruit)
8});

1function each(collection, action) {
2  if (Array.isArray(collection)) {
3    for (var i = 0; i < collection.length; i++) {
4      action(collection[i], i, collection);
5    }
6  } else {
7    for (var key in collection) {
8      action(collection[key], key, collection);
9    }
10  }
11}