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Diffstat (limited to 'std/util/has_own_property.ts')
-rw-r--r-- | std/util/has_own_property.ts | 30 |
1 files changed, 0 insertions, 30 deletions
diff --git a/std/util/has_own_property.ts b/std/util/has_own_property.ts deleted file mode 100644 index 351905cec..000000000 --- a/std/util/has_own_property.ts +++ /dev/null @@ -1,30 +0,0 @@ -// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license. - -/** - * Determines whether an object has a property with the specified name. - * Avoid calling prototype builtin `hasOwnProperty` for two reasons: - * - * 1. `hasOwnProperty` is defined on the object as something else: - * - * const options = { - * ending: 'utf8', - * hasOwnProperty: 'foo' - * }; - * options.hasOwnProperty('ending') // throws a TypeError - * - * 2. The object doesn't inherit from `Object.prototype`: - * - * const options = Object.create(null); - * options.ending = 'utf8'; - * options.hasOwnProperty('ending'); // throws a TypeError - * - * @param obj A Object. - * @param v A property name. - * @see https://eslint.org/docs/rules/no-prototype-builtins - */ -export function hasOwnProperty<T>(obj: T, v: PropertyKey): boolean { - if (obj == null) { - return false; - } - return Object.prototype.hasOwnProperty.call(obj, v); -} |