Can anyone help with this issue related to React code?
const sidebar = document.getElementsByClassName("pro-sidebar");
The problem occurs when trying to adjust the width using:
function openNav() {
sidebar.style.width = "250px";}
Additionally, I have onClick={closeNav} on a button, but pressing it results in an error message: TypeError: Cannot read property 'style' of undefined.
Any insights or solutions to why this is happening?
In React, it is not recommended to directly manipulate the DOM in this way. Here is a better approach:
return (
<div style={customStyles.container} />
)
...
let customStyles = {
container: {
width: '20px'
}
}
For dynamic changes, you can use string interpolation on the width property and update it programmatically using your function.
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