Function

isNone (obj) Boolean public

Defined in packages/@ember/-internals/metal/lib/is_none.ts:4

import { isNone } from '@ember/utils';

obj

Object

Value to test

returns

Boolean

Returns true if the passed value is null or undefined. This avoids errors from JSLint complaining about use of ==, which can be technically confusing.

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isNone(null);          // true
isNone(undefined);     // true
isNone('');            // false
isNone([]);            // false
isNone(function() {}); // false