method Array.every
Private
Array.every<S extends T>(
predicate: (
value: T,
index: number,
array: T[],
) => value is S
,
thisArg?: any,
): this is S[]

Determines whether all the members of an array satisfy the specified test.

Type Parameters

S extends T

Parameters

predicate: (
value: T,
index: number,
array: T[],
) => value is S

A function that accepts up to three arguments. The every method calls the predicate function for each element in the array until the predicate returns a value which is coercible to the Boolean value false, or until the end of the array.

optional
thisArg: any

An object to which the this keyword can refer in the predicate function. If thisArg is omitted, undefined is used as the this value.

Return Type

this is S[]
Array.every(
predicate: (
value: T,
index: number,
array: T[],
) => unknown
,
thisArg?: any,
): boolean

Determines whether all the members of an array satisfy the specified test.

Parameters

predicate: (
value: T,
index: number,
array: T[],
) => unknown

A function that accepts up to three arguments. The every method calls the predicate function for each element in the array until the predicate returns a value which is coercible to the Boolean value false, or until the end of the array.

optional
thisArg: any

An object to which the this keyword can refer in the predicate function. If thisArg is omitted, undefined is used as the this value.

Return Type

boolean