CODEWITHSUNDEEP
javascripthtmlcssparsingoutput
CTOverton
CTOverton

Reputation: 686

Get child and sub child nodes in html with javascript

I have a grid made in html like so

<div class="grid-container" id="grid-container">
            <div class="grid-row">
                <div class="grid-cell red"><p class="label">R</p></div>
                <div class="grid-cell"></div>
                <div class="grid-cell blue"><p class="label">B</p></div>
            </div>
            <div class="grid-row">
                <div class="grid-cell"></div>
                <div class="grid-cell white"><p class="label">W</p></div>
                <div class="grid-cell"></div>
            </div>
            <div class="grid-row">
                <div class="grid-cell"></div>
                <div class="grid-cell blue"><p class="label">B</p></div>
                <div class="grid-cell blue"><p class="label">B</p></div>
            </div>
        </div>

I want to be able to make JavaScript updates to each cell individually. For this I tried to write a script that gets all the child nodes of the grid and then again get the child nodes of each row. However when I test the output the three rows return fine but the children of them return as 7 objects instead of 3. I'm very confused...

function myFunction() {
var c = document.getElementById("grid-container").childNodes;
var b;
var txt = "";
for (var i = 0; i < c.length; i++) {
    txt = txt + "Row: " + c[i].nodeName + "<br>";
    b = c[i].childNodes;
    for (var j = 0; j < b.length; j++) {
        txt = txt + "Cell: " + b[i].nodeName + " Value: " + b[i].className + "<br>";
    }

}

document.getElementById("demo").innerHTML = txt;}

Here is the output it gives me:

Output

Upvotes: 0

Views: 1115

Answers (1)

CTOverton
CTOverton

Reputation: 686

For the sake of writing an answer credit to Loilo, simply use children instead of childNodes

Upvotes: 1

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