Is it possible to write custom rule in eslint config? My case is based on type 'any'. In eslint doc is rule "@typescript-eslint/no-explicit-any", but it's too strong for me. I want to block assignment like this:
const dontknow: any = ''; const name: string = dontknow;
Is it possible to block this case?
You can use the no-unsafe-assignment rule instead of the no-explicit-any rule.
This rule disallows assigning any to a variable, and assigning any[] to an array destructuring. This rule also compares the assigned type to the variable's type to ensure you don't assign an unsafe any in a generic position to a receiver that's expecting a specific type. For example, it will error if you assign Set to a variable declared as Set.
.eslintrc
{
"root": true,
"parser": "@typescript-eslint/parser",
"plugins": [
"@typescript-eslint"
],
"extends": [
"eslint:recommended",
"plugin:@typescript-eslint/eslint-recommended",
"plugin:@typescript-eslint/recommended"
],
"rules": {
"@typescript-eslint/no-unsafe-assignment": 2
},
"overrides": [
{
"files": ["*.ts", "*.tsx"], // Your TypeScript files extension
"parserOptions": {
"project": ["./tsconfig.json"], // Specify it only for TypeScript files
},
},
],
}