typescript/no-inferrable-types Style ​
What it does ​
Disallow explicit type declarations for variables or parameters initialized to a number, string, or boolean
Why is this bad? ​
Explicitly typing variables or parameters that are initialized to a literal value is unnecessary because TypeScript can infer the type from the value.
Examples ​
Examples of incorrect code for this rule:
ts
const a: number = 5;
const b: string = "foo";
const c: boolean = true;
const fn = (a: number = 5, b: boolean = true, c: string = "foo") => {};Examples of correct code for this rule:
ts
const a = 5;
const b = "foo";
const c = true;
const fn = (a = 5, b = true, c = "foo") => {};How to use ​
To enable this rule in the CLI or using the config file, you can use:
bash
oxlint --deny typescript/no-inferrable-typesjson
{
"rules": {
"typescript/no-inferrable-types": "error"
}
}