Looping through the button always give me 0 answer

Question

Here's the code:

/*this code works fine in code snippet and (when I run the code in the chrome console but when I write the code in my file.js, this won't work*/
var btn = document.getElementsByTagName('button');
alert(btn.length);
// it must alert 3, but I always get 0. Please help me. Thank you

<button>Games</button>
<button>Foods</button>
<button>Movies</button>

Actually, if you press "Run code snippets", it does alert 3, which is the desired behavior — Antony, Jul 21 '17 at 14:22

score 0 · Accepted Answer · answered Jul 21 '17 at 14:36

0

Run the js after document ready .use with window.onload function

window.onload=function(){
var btn = document.getElementsByTagName('button');
alert(btn.length);
}

<button>Games</button>
<button>Foods</button>
<button>Movies</button>

answered Jul 21 '17 at 14:36

prasanth

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Looping through the button always give me 0 answer

1 Answers1