isMethod

Test if an object has a specified method name.

Usage

var isMethod = require( '@stdlib/assert/is-method' );

isMethod( value, property )

Returns a boolean indicating if a value has a specified own method name.

function noop() {
    // Example function...
}

var value = {
    'beep': noop
};

var bool = isMethod( value, 'beep' );
// returns true

bool = isMethod( value, 'toString' );
// returns false

Notes

• Value arguments other than null or undefined are coerced to objects.

  var bool = isMethod( 'beep', 'toString' );
  // returns false

• Property arguments are coerced to strings.

  function noop() {
      // Example function...
  }
  
  var value = {
      'null': noop
  };
  var bool = isMethod( value, null );
  // returns true
  
  value = {
      '[object Object]': noop
  };
  bool = isMethod( value, {} );
  // returns true

• The function searches only own properties.

Examples

var isMethod = require( '@stdlib/assert/is-method' );

var bool = isMethod( { 'a': isMethod }, 'a' );
// returns true

bool = isMethod( { 'a': 'b' }, 'a' );
// returns false

bool = isMethod( { 'a': 'b' }, null );
// returns false

bool = isMethod( {}, 'toString' );
// returns false

bool = isMethod( null, 'a' );
// returns false

bool = isMethod( void 0, 'a' );
// returns false

bool = isMethod( { 'null': isMethod }, null );
// returns true

bool = isMethod( { '[object Object]': isMethod }, {} );
// returns true

---

See Also

• @stdlib/assert/has-own-property: test if an object has a specified property.
• @stdlib/assert/is-function: test if a value is a function.
• @stdlib/assert/is-method-in: test if an object has a specified method name, either own or inherited.