javascript count match string length

Question

I Have this example : https://jsfiddle.net/xqdwL914/1/

<div id="test">bar <i>def</i>ghij<br>bar <i>def</i>ghij</div>

I Want to find "bar" index and length in multi occurrence like this :

var node = document.getElementById('test');
var text  = node.textContent;
var re = /bar/g;
while ((match = re.exec(text)) != null) {

alert("match found at: " + match.index+ " length: " +match.length);

 }

the output :

match found at: 0 length: 1

match found at: 11 length: 1

Why the length is "1" it should be "3" as three character of the word "bar" and how i get the last index of each match word bar ????

Answer 1

Returned match is an array. I understand that you are looking for the length of the match string at the first position ( match[0] ):

while ((match = re.exec(text)) != null) {
    alert("match found at: " + match.index+ " length: " +match[0].length);
}

Answer 2

From MDN

If the match succeeds, the exec() method returns an array and updates properties of the regular expression object. The returned array has the matched text as the first item

var text  = 'bar <i>def</i>ghij<br>bar <i>def</i>ghij';
var re = /bar/g;
while ((match = re.exec(text)) != null) {
    console.log("match found at: " + match.index+ " length: " +match[0].length);
}

output:

match found at: 0 length: 3
match found at: 22 length: 3