How do you assign an event handler to multiple elements in JavaScript? -



How do you assign an event handler to multiple elements in JavaScript? -

i know how jquery, , know how event delegation. how do in plain javascript?

for example, how assign event handler bunch of lis?

i see var li = document.queryselectorall('li');. returns array-like thing. loop through , assign handlers? sense there must improve way. if not, what's best way loop through array-like thing (and array-like thing called?)?

yes, should loop through collection , assign handlers individually. jquery behind scenes.

queryselectorall returns nodelist array-like object.

for looping through list, can either utilize for loop:

var list = document.queryselectorall('li'), l = list.length, li; (var = 0; < l; i++) { li = list.item(i); // ... }

or utilize foreach method:

[].foreach.call(document.queryselectorall('li'), function(li) { // ... });

javascript javascript-events event-handling

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