TSDocWhen set, TypeScript will check that the built-in methods of functions call, bind, and apply are invoked with correct argument for the underlying function:
ts
// @strictBindCallApply: true
// @errors: 2345
// With strictBindCallApply on
function fn(x: string) {
return parseInt(x);
}
const n1 = fn.call(undefined, "10");
const n2 = fn.call(undefined, false);// @strictBindCallApply: true
// @errors: 2345
// With strictBindCallApply on
function fn(x: string) {
return parseInt(x);
}
const n1 = fn.call(undefined, "10");
const n2 = fn.call(undefined, false);Otherwise, these functions accept any arguments and will return any:
ts
// @strictBindCallApply: false
// With strictBindCallApply off
function fn(x: string) {
return parseInt(x);
}
// Note: No error; return type is 'any'
const n = fn.call(undefined, false);// @strictBindCallApply: false
// With strictBindCallApply off
function fn(x: string) {
return parseInt(x);
}
// Note: No error; return type is 'any'
const n = fn.call(undefined, false);