Optimize OR in IF

Question

I have a code like this:

if (action == \'John\' || action == \'John Beckham\' || action == \'Henry John\'){
     alert(\'true!\');
}

How do I m

Answer 1

In addition of indexOf, you can also use conditional operator in Javascript.

names = ['John' , 
         'John Beckham', 
         'John Henry' , 
         'Giggs John' , 
         'Scholes John', 
         'John Messi'
];
names.indexOf(action) != -1? alert('True') : alert ('False');

And you want to do more then simple statement do like:

 names.indexOf(action) != -1? doSomethingOnTrue() : doSomethingOnFalse();