no-explicit-any
NOTE: this rule is part of the
recommended rule set.Enable full set in
deno.json:{
"lint": {
"tags": ["recommended"]
}
}Enable full set using the Deno CLI:
deno lint --tags=recommended
Disallows use of the any type.
Use of the any type disables the type check system around that variable,
defeating the purpose of Typescript which is to provide type safe code.
Additionally, the use of any hinders code readability, since it is not
immediately clear what type of value is being referenced. It is better to be
explicit about all types. For a more type-safe alternative to any, use
unknown if you are unable to choose a more specific type.
Invalid:
const someNumber: any = "two";
function foo(): any {
return undefined;
}
Valid:
const someNumber: string = "two";
function foo(): undefined {
return undefined;
}