sample: check all checkbox with specified value via attribute selector on querySelectorAll

by sii_side

HTML

<label>1<input type="checkbox" value="1"></label>
<label>1<input type="checkbox" value="1"></label>
<label>1<input type="checkbox" value="1"></label>
<label>0<input type="checkbox" value="0"></label>
<label>1<input type="checkbox" value="1"></label>
<label>0<input type="checkbox" value="0"></label>

JavaScript

[].forEach.call(document.querySelectorAll("[value='1']"), function(c) {
	c.checked = true;
});