var a = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10] var o = [] for (var i = 0; i < a.length; i++) { var next = a[i + 1] var pair = '' + a[i] + (next ? next : '') o.push(pair) i++ }
var a = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10] var o = [] for (var i = 0; i < a.length; i++) { var next = a[i + 1] var pair = '' + a[i] + (next ? next : '') o.push(pair) i++ }