How to do this if a condition evaluates its value in javascript

Like javascript if a condition defines its value ?, see this example:

<script type="text/javascript">

var bar = ("something" == true);
alert(bar); // 1

if ("something") {
    alert("hey!"); // 2
}

</script>

Why am I getting the point // 2, and the "bar" in // 1 is false?

As I can see, the value is barcalculated almost the same as the if condition, or is it not?