no-extra-non-null-assertion.md
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no-extra-non-null-assertion
)
Disallow extra non-null assertion (Rule Details
Examples of incorrect code for this rule:
const foo: { bar: number } | null = null;
const bar = foo!!!.bar;
function foo(bar: number | undefined) {
const bar: number = bar!!!;
}
function foo(bar?: { n: number }) {
return bar!?.n;
}
Examples of correct code for this rule:
const foo: { bar: number } | null = null;
const bar = foo!.bar;
function foo(bar: number | undefined) {
const bar: number = bar!;
}
function foo(bar?: { n: number }) {
return bar?.n;
}
How to use
{
"@typescript-eslint/no-extra-non-null-assertion": ["error"]
}