alternatives to if's. if statement refactored.

if.js

//if statement
(if ( foo ) {
  bar = "beta";
}
// and...
if ( foo ) {
  bar();
})

//alternative
(foo && ( bar = "beta" );
// and...
foo && bar();
)

//if else
(if ( foo ) {
  bar();
} else {
  quux()
})

//aternative
// if foo is true, return bar(); if foo is false, bar() is skipped and false is returned
// for the left side and quux() is returned;
( foo && bar() ) || quux();

//alternative 2
foo ? bar() : quux();

//more complicated example adding numbers
if ( foo.length === 1 ) {
  return parseInt( foo[0], 10 );
} else if ( foo.length === 2 ) {
  return parseInt( foo[0], 10 ) + parseInt( foo[1], 10 );
} else if ( foo.length === 3 ) {
  return parseInt( foo[0], 10 ) + parseInt( foo[1], 10 ) + parseInt( foo[2], 10 );
} else {
  return 0;
}

//refactor
//parse all the numbers in the array and add
var ret = foo.map(function( val ) { 
	return parseInt( val, 10 ); 
}).join("+");

return ( ret && new Function("return " + ret )() ) || 0;