var a = []; var i; a.push({ key: "key1", value: 23 }); a.push({ key: "key2", value: 123 }); for (i = 0; i < a.length; i++) { if (a[i].key == "key23") { break; } } if (i == a.length) { a.push({ key: "key23", value
ls -a, --all do not ignore entries starting with . -A, --almost-all do not list implied . and .. --author with -l, print the author of each file -b, --escape print C-style escapes for nongraphic characters --block-size=SIZE scale sizes by SIZE before