Finding value in an array that passes function test

// for loop style function find(arr, func) { var num = 0; for (var i =0; i<arr.length; i++) { if ( func( arr[i] ) ) { break; } } return arr[i]; } find([1, 2, 3, 4], function(num){ return num % 2 === 0; });

function find(arr, func) { var num = 0; arr.some( function( curr, index, aArray ) { if ( func( aArray[index] ) ) { num=index; } }); return num; } find([1, 2, 3, 4], function(num){ return num % 2 === 0; });