bool every(
bool test(E element)
)

Checks whether every element of this iterable satisfies test.

Checks every element in iteration order, and returns false if any of them make test return false, otherwise returns true.

Source

/**
 * Checks whether every element of this iterable satisfies [test].
 *
 * Checks every element in iteration order, and returns `false` if
 * any of them make [test] return `false`, otherwise returns `true`.
 */
bool every(bool test(E element));