JS Flow

jsflow

// Flow control
 
var foo = true;
var bar = false;
 
if ( bar ) {
    // This code will never run.
    console.log( "hello!" );
}
 
if ( bar ) {
 
    // This code won't run.
 
} else {
 
    if ( foo ) {
        // This code will run.
    } else {
        // This code would run if foo and bar were both false.
    }
 
}