time-to-botec/js/node_modules/@stdlib/assert/is-nonenumerable-property-in/README.md

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@license Apache-2.0
Copyright (c) 2018 The Stdlib Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
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# isNonEnumerablePropertyIn
> Test if an object's own or inherited property is non-enumerable.
<section class="usage">
## Usage
```javascript
var isNonEnumerablePropertyIn = require( '@stdlib/assert/is-nonenumerable-property-in' );
```
#### isNonEnumerablePropertyIn( value, property )
Returns a `boolean` indicating if a `value` has a non-enumerable `property`.
<!-- eslint-disable no-restricted-syntax -->
```javascript
var defineProperty = require( '@stdlib/utils/define-property' );
var bool;
var obj;
function Foo() {
this.foo = 'bar';
return this;
}
defineProperty( Foo.prototype, 'beep', {
'configurable': true,
'enumerable': true,
'writable': true,
'value': true
});
defineProperty( Foo.prototype, 'boop', {
'configurable': true,
'enumerable': false,
'writable': true,
'value': true
});
obj = new Foo();
bool = isNonEnumerablePropertyIn( obj, 'foo' );
// returns false
bool = isNonEnumerablePropertyIn( obj, 'beep' );
// returns false
bool = isNonEnumerablePropertyIn( obj, 'boop' );
// returns true
```
</section>
<!-- /.usage -->
<section class="notes">
## Notes
- Value arguments other than `null` or `undefined` are coerced to `objects`.
```javascript
var bool = isNonEnumerablePropertyIn( 'beep', 'length' );
// returns true
```
- Non-symbol property arguments are coerced to `strings`.
```javascript
var defineProperty = require( '@stdlib/utils/define-property' );
var obj = {};
defineProperty( obj, 'null', {
'configurable': true,
'enumerable': false,
'writable': true,
'value': true
});
var bool = isNonEnumerablePropertyIn( obj, null );
// returns true
```
</section>
<!-- /.notes -->
<section class="examples">
## Examples
<!-- eslint-disable object-curly-newline -->
<!-- eslint no-undef: "error" -->
```javascript
var isNonEnumerablePropertyIn = require( '@stdlib/assert/is-nonenumerable-property-in' );
var bool = isNonEnumerablePropertyIn( {}, 'toString' );
// returns true
bool = isNonEnumerablePropertyIn( {}, 'hasOwnProperty' );
// returns true
bool = isNonEnumerablePropertyIn( [ 'a' ], 'length' );
// returns true
bool = isNonEnumerablePropertyIn( { 'a': 'b' }, 'a' );
// returns false
bool = isNonEnumerablePropertyIn( [ 'a' ], 0 );
// returns false
bool = isNonEnumerablePropertyIn( { 'null': false }, null );
// returns false
bool = isNonEnumerablePropertyIn( { '[object Object]': false }, {} );
// returns false
bool = isNonEnumerablePropertyIn( null, 'a' );
// returns false
bool = isNonEnumerablePropertyIn( void 0, 'a' );
// returns false
```
</section>
<!-- /.examples -->
<section class="links">
</section>
<!-- /.links -->