js array functions

Passing functions as parameters map, etc

JavaScript

var numbers = [2,4,5,7,8,9];
var newNumbers = numbers.map(function(value){return value*2});
console.log(newNumbers);

//the trouble with sort
console.log([5, 10, 1].sort());

// annother map function
/*
var passengers = [ ["Thomas", "Meeks"],
                   ["Gregg", "Pollack"],
                   ["Christine", "Wong"],
                   ["Dan", "McGaw"] ];

var modifiedNames = passengers.map(function(arrayCell){return arrayCell.join(" ");});
*/