Can I assign a variable to the result of an if statement in javascript?

I am just wondering, is there a way to assign a variable to the result of an if statement. Would something like this be allowed in javascript?

var result = if (someVariable === 2) { 
  return something; 
} else if (someOtherVariable) {
  return somethingElse;
} else { return null; }

Where result would end up being equal to whatever the if statement returns. Also, if this is not allowed in JS, is it allowed in other languages (just out of curiosity)?