How to make this if statement shorter?

Question

Can I make this statement shorter?

if(abc==\'value1\' || abc==\'value2\' || abc==\'value3\') {//do something}

to make it look similar to this:<

Answer 1

if (['value1', 'value2', 'value3'].indexOf(abc) != -1)

This one manages to remain somewhat readable, but you should leave your original code as-is unless you have way more conditions.