String.prototype.format = function(args) { var result = this; if (arguments.length > 0) { if (arguments.length == 1 && typeof (args) == "object") { for (var key in args) { if(args[key]!=undefined){ var reg = new RegExp("({" + key + "})", "g"); result = result.replace(reg, args[key]); } } } else { for (var i = 0; i < arguments.length; i++) { if (arguments[i] != undefined) { var reg = new RegExp("({[" + i + "]})", "g"); result = result.replace(reg, arguments[i]); } } } } return result; } //兩種調用方式 var template1="我是{0},今年{1}了"; var template2="我是{name},今年{age}了"; var result1=template1.format("loogn",22); var result2=template2.format({name:"loogn",age:22}); //兩個結果都是"我是loogn,今年22了"
String.prototype.format = function() { var s = this; for (var i = 0; i < arguments.length; i++) { var reg = new RegExp("\\{" + i + "\\}", "gm"); s = s.replace(reg, arguments[i]); } return s; };
function stringFormat() { if (arguments.length == 0) return null; var str = arguments[0]; for (var i = 1; i < arguments.length; i++) { var re = new RegExp('\\{' + (i - 1) + '\\}', 'gm'); str = str.replace(re, arguments[i]); } return str; } StringFormat("&Type={0}&Ro={1}&lPlan={2}&Plan={3}&={4}&Id={5}&Id={6}", data1, data2, data3,data4, data5,data6,data7);
相信作前端開發的朋友都受過這個折磨:鏈接HTML的時候被可惡的單引號、雙引號搞得頭昏腦脹。好比:
element.innerHTML = ‘<a href=」‘ + url + ‘」 onclick=」alert(\」 + msg + ‘\’);」>’ + text + ‘</a>’;
這裏介紹一個字符串格式化函數:
String.format = function(str) {
var args = arguments, re = new RegExp(」%([1-" + args.length + "])」, 「g」);
return String(str).replace(
re,
function($1, $2) {
return args[$2];
}
);
};
調用方法很簡單:
element.innerHTML = String.format(’<a href=」%1″ onclick=」alert(\’%2\’);」>%3</a>’, url, msg, text);前端