JS代码片段收藏

1. 字符串格式化

1.1 json方案

$.extend({template:function nano(template, data) {
return template.replace(/\{([\w\.]*)\}/g, function(str, key) {
var keys = key.split("."), v = data[keys.shift()];
for (var i = 0, l = keys.length; i < l; i++) v = v[keys[i]];
return (typeof v !== "undefined" && v !== null) ? v : "";
});
}
});1.2 字符串方案
$.extend({format: function formatstring(src){
if (arguments.length == 0) return null;
var args = Array.prototype.slice.call(arguments, 1);

return src.replace(/\{(\d+)\}/g, function(m, i){
return args[i];
});
}
});

2. 日期格式化
/**
* 时间对象的格式化;
*/
Date.prototype.format = function(format) {
/*
* eg:format="yyyy-MM-dd hh:mm:ss";
*/
var o = {
"M+" : this.getMonth() + 1, // month
"d+" : this.getDate(), // day
"h+" : this.getHours(), // hour
"m+" : this.getMinutes(), // minute
"s+" : this.getSeconds(), // second
"q+" : Math.floor((this.getMonth() + 3) / 3), // quarter
"S" : this.getMilliseconds() // millisecond
}

if (/(y+)/.test(format)) {
format = format.replace(RegExp.$1, (this.getFullYear() + "").substr(4
- RegExp.$1.length));
}

for (var k in o) {
if (new RegExp("(" + k + ")").test(format)) {
format = format.replace(RegExp.$1, RegExp.$1.length == 1
? o[k]
: ("00" + o[k]).substr(("" + o[k]).length));
}
}
return format;
}