javascript函數編寫

1.實現功能:一個json格式資料data如: { name:’swh’,age:’20’ },另有一個字串str為 hello:{name},聽說你今年{age}了, Tempo.replace(data,str),則返回hello:swh,聽說你今年20了

實現過程 :

var Tempo = {};            Tempo._buildParseFunc = function(str){   str = str       .replace(/([\'|\\])/gm,"\\$1")   //轉義掉 \ 和 '       .replace(new RegExp('{([^{}]*)}','gim'),"'+(data.$1==null?'':data.$1)+'") //轉化為包括變數的字串       .replace(/[\n\r]/gm,'\\n');    //去除斷行符號換行   str = ["return '", str ,"';"].join('');   return new Function('data',str);};Tempo.replace = function(data,tplStr){         var_parse = this._buildParseFunc(tplStr);   return _parse(data);};

2.去除空格

function cTrim(sInputString,iType){ var sTmpStr = ' ' var i = -1 

//去除前空格 if(iType == 0 || iType == 1) { while(sTmpStr == ' ') { ++i sTmpStr = sInputString.substr(i,1) } sInputString = sInputString.substring(i) } //去除後空格 if(iType == 0 || iType == 2) { sTmpStr = ' ' i = sInputString.length while(sTmpStr == ' ') { --i sTmpStr = sInputString.substr(i,1) } sInputString = sInputString.substring(0,i+1) } return sInputString }