time-to-botec/squiggle/node_modules/@stdlib/assert/has-property/README.md
NunoSempere b6addc7f05 feat: add the node modules
Necessary in order to clearly see the squiggle hotwiring.
2022-12-03 12:44:49 +00:00

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# hasProperty
> Test if an object has a specified property, either own or inherited.
<section class="usage">
## Usage
```javascript
var hasProp = require( '@stdlib/assert/has-property' );
```
#### hasProp( value, property )
Returns a `boolean` indicating if a `value` has a specified `property`, either own or inherited.
```javascript
var value = {
'beep': 'boop'
};
var bool = hasProp( value, 'beep' );
// returns true
bool = hasProp( value, 'hasOwnProperty' );
// returns true
bool = hasProp( value, 'bap' );
// returns false
```
</section>
<!-- /.usage -->
<section class="notes">
## Notes
- The function does **not** throw when provided `null` or `undefined`. Instead, the function returns `false`.
```javascript
var bool = hasProp( null, 'a' );
// returns false
bool = hasProp( void 0, 'a' );
// returns false
```
- Value arguments other than `null` or `undefined` are coerced to `objects`.
```javascript
var bool = hasProp( 'beep', 'length' );
// returns true
```
- Non-symbol property arguments are coerced to `strings`.
```javascript
var value = {
'null': false
};
var bool = hasProp( value, null );
// returns true
value = {
'[object Object]': false
};
bool = hasProp( value, {} );
// returns true
```
</section>
<!-- /.notes -->
<section class="examples">
## Examples
<!-- eslint-disable object-curly-newline, object-curly-spacing -->
<!-- eslint no-undef: "error" -->
```javascript
var hasProp = require( '@stdlib/assert/has-property' );
var bool = hasProp( { 'a': 'b' }, 'a' );
// returns true
bool = hasProp( {}, 'hasOwnProperty' );
// returns true
bool = hasProp( { 'a': 'b' }, 'c' );
// returns false
bool = hasProp( { 'a': 'b' }, null );
// returns false
bool = hasProp( null, 'a' );
// returns false
bool = hasProp( void 0, 'a' );
// returns false
bool = hasProp( { 'null': false }, null );
// returns true
bool = hasProp( { '[object Object]': false }, {} );
// returns true
```
</section>
<!-- /.examples -->
<section class="links">
</section>
<!-- /.links -->