var camelizeRE = /-(\w)/g; export function camelize(str) { return str.replace(camelizeRE, function (_, c) { return c.toUpperCase(); }); } export function padZero(num, targetLength) { if (targetLength === void 0) { targetLength = 2; } var str = num + ''; while (str.length < targetLength) { str = '0' + str; } return str; }