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Start your free trialkaran Badhwar
Web Development Techdegree Graduate 18,135 Pointsaccessing Text Nodes
Why this one is not working
const checkbox = e.target;
let labelText = checkbox.parentNode.textContent;
if (checkbox.checked){
labelText = 'Confirmed';
} else {
labelText = 'Confirm';
console.log(labelText);
}
});
But this code is working
if (checked){
checkbox.parentNode.parentNode.className = 'responded';
console.log(labelText);
labelText.textContent = 'Confirmed';
} else {
checkbox.parentNode.parentNode.className = '';
labelText.textContent = 'Confirm'
Can somebody please explain me this having hard time understanding and how do we actually access and manipulate Text Nodes when they have sibling Element Nodes with them?
1 Answer
Steven Parker
231,236 PointsDOM traversal allows you to isolate and manipulate specific nodes, so it won't matter if they have any sibling nodes or not.
As to the code examples, you didn't say but I assume that by "working" you mean "able to make changes to the DOM". If so, the problem with the first example is that it only assigns a variable, it doesn't address anything in the DOM:
let labelText = checkbox.parentNode.textContent; // this COPIES the text into "labelText"
//...
labelText = 'Confirmed'; // this only reassigns the variable
But the second example modifies the DOM:
let labelText = checkbox.parentNode; // this wasn't shown, but I'm assuming that this
//... time "labelText" refers to the element node
labelText.textContent = 'Confirmed'; // so this changes the text in the DOM
karan Badhwar
Web Development Techdegree Graduate 18,135 Pointskaran Badhwar
Web Development Techdegree Graduate 18,135 PointsThankyou Steven, I got it