Why Doesn't My JavaScript `animate` Function Work in Chrome, But Works in IE?

JS Function animate Doesn't Work in Chrome, but Works in IE

The provided JavaScript function animate doesn't function in Chrome but operates as expected in Internet Explorer. To address this issue, it's necessary to delve into the constraints and potential conflicts that arise when using event handler content attributes.

The crux of the problem originates from the shadowing of your global function window.animate by Element.prototype.animate. This new function, introduced in Web Animations, extends the Element interface, enabling animations directly on elements in the following manner:

elem.animate({ color: 'red' }, 2000);

When handling events using content attributes, the scope of the target element overrides the global scope. Therefore, your function name animate conflicts with the new method Element.animate.

To resolve this issue, there are two possible approaches:

1. Rename Your Function:

By changing the name of your function, you can avoid the conflict with Element.prototype.animate. For example, you could use:

function animate__() {
  var div = document.getElementById('demo');
  div.style.left = "200px";
  div.style.color = "red";
}

2. Use the apply Method:

Alternatively, you can use the apply method to explicitly specify the correct scope for your animate function. This approach is particularly useful if you need to maintain the name animate.

Modify your code as follows:

document.getElementById('demo').onclick = function() {
  animate.apply(document.getElementById('demo'));
};

This line applies the correct scope to your global animate function when it's triggered by the onclick event.

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