oxc/uninvoked-array-callback Correctness
What it does
This rule applies when an Array function has a callback argument used for an array with empty slots.
Why is this bad?
When the Array constructor is called with a single number argument, an array with the specified number of empty slots (not actual undefined values) is constructed. If a callback function is passed to the function of this array, the callback function is never invoked because the array has no actual elements.
Examples
Examples of incorrect code for this rule:
javascript
const list = new Array(5).map(_ => createElement());Examples of correct code for this rule:
javascript
const list = new Array(5).fill().map(_ => createElement());How to use
To enable this rule in the CLI or using the config file, you can use:
bash
oxlint --deny oxc/uninvoked-array-callbackjson
{
"rules": {
"oxc/uninvoked-array-callback": "error"
}
}