NimoLife

// 小數點支援到第四位 if (!preg_match("#^\d+(\.\d{1,4})?$#", $amount)) { die("金額格式不符!!") }

最近工作上用到。 pngquant Caesium

_.keyBy(陣列/物件變數, 迭代方法); 常使用的狀況是，你想讓物件/陣列裡的某個值變成key以方便之後使用 var obj_vars = { "3": {sn: 1, title: "t1"}, "2": {sn: 2, title: "t2"}, "1": {sn: 3, title: "t3"}, }; _.keyBy(obj_vars, "sn"); /** { "1": { "sn": 1, "title": "t1" }, "2": { "sn": 2, "title": "t2" }, "3": { "sn": 3, "title": "t3" } } */ var arr_vars = [ {sn: 3, title: "t3"}, {sn: 2, title: "t2"}, {sn: 1, title: "t1"}, ]; _.keyBy(arr_vars , "sn"); /** { "1": { "sn": 1, "title": "t1" }, "2": { "sn": 2, "title": "t2" }, "3": { "sn": 3, "title&q