oxc/bad-object-literal-comparison Correctness
What it does
Checks for comparisons between object and array literals.
Why is this bad?
Comparing a variable to an object or array literal will always return false as object and array literals are never equal to each other.
If you want to check if an object or array is empty, use Object.entries() or Object.keys() and their lengths.
Examples
Examples of incorrect code for this rule:
javascript
if (x === {}) {}
if (arr !== []) {}Examples of correct code for this rule:
javascript
if (typeof x === "object" && Object.keys(x).length === 0) {}
if (Array.isArray(x) && x.length === 0) {}How to use
To enable this rule in the CLI or using the config file, you can use:
bash
oxlint --deny oxc/bad-object-literal-comparisonjson
{
"rules": {
"oxc/bad-object-literal-comparison": "error"
}
}