Test if a value is a function.
var isFunction = require( '@stdlib/assert/is-function' );Tests if a value is a function.
function beep() {
console.log( 'beep' );
}
var bool = isFunction( beep );
// returns truevar isFunction = require( '@stdlib/assert/is-function' );
var bool = isFunction( function foo() {} );
// returns true
bool = isFunction( 'beep' );
// returns false
bool = isFunction( 5 );
// returns false
bool = isFunction( true );
// returns false
bool = isFunction( null );
// returns false
bool = isFunction( [] );
// returns false
bool = isFunction( {} );
// returns false