Difference in Jquery.each() and Array.prototype.forEach() method [duplicate]

Question

Is there any difference between Jquery.each() and Array.prototype.forEach() method since array.forEach() method can also be used to loop over array-like objects with length property.The only difference i see is placement of arguments ,what else can be the difference in them?

 I found this:
 var obj = { one:1, two:2, three:3, four:4, five:5 };

jQuery.each(obj, function(i, val) {
  $("#" + i).append(document.createTextNode(" - " + val));
});

What i wan to know is ,do jquery.each() invokes function for object without length property??

Answer 1

• Placement of arguments in the callback.

• Quantity of arguments in the callback (The .forEach() gives you get a reference to the original collection.)

• Default this value in the callback. (In jQuery it's the current item, in .forEach() it's the JavaScript default)

• Ability to manually set the this value in the callback. (jQuery doesn't give this option, .forEach() lets you via a third argument.)

• Avoidance of non-defined properties on sparse Arrays. (The .forEach() avoids them, jQuery includes them.)

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They're very differently behaving methods. jQuery's doesn't make any attempt to be compliant with or complimentary of the standard behaviors.