함수 array filter()

1 JavaScript

JavaScript array_filter() 문서를 참고하십시오.

var arr = ['foo', false, -1, null, ''];
console.log( arr.filter( function(a){ return a; } ) );
// ["foo", -1]

function array_filter(arr) { return arr.filter( function(a){ return a; } ) }
var arr = ['foo', false, -1, null, ''];
console.log( array_filter(arr) );
// ["foo", -1]

2 PHP

PHP array_filter() 문서를 참고하십시오.

$arr = ['foo', false, -1, null, ''];
print_r( array_filter($arr) );
# Array
# (
#     [0] => foo
#     [2] => -1
# )