JavaScript-implemented query JSON instance code

JavaScript-implemented query JSON instance code:
Below is a snippet of code strength for a better JavaScript query JSON on a network, hopefully helping you with your needs.
The code example is as follows:

/** Define template functions*/        varTemplate =function(Queryarr) {varCount = 0;  for(vari = 0; i < queryarr.length; i++) {                varE =Queryarr[i]; if($express) {count++; }            }            returncount; }        /** Template creation function*/        varCreateintance =function(exp) {varFun = Template.tostring (). Replace ("$express", exp). toString (); returnEval ("0," +Fun ); }        varTesttodo =function () {            varTestarr =[{name:"Zhang San", age:20}, {name:"John Doe", age:25}, {name:"The King two Leper", age:28}, {name:"Xiao Zhang", age:30 }            ]; varFunc = createintance ("e.age>=25");        Alert (func (Testarr)); }        /****************** JS Implementation JSON query **********************/</P>//define commonly used functions        varLen =function(s) {returns.length;} varleft =function(s, N) {returnS.SUBSTR (0, N); }        varright =function(s, N) {returnS.SUBSTR (-N); }        varindex =function(s, find) {returnS.indexof (Find) + 1; } //Extended Prototyping Methods        var_proto =Object.prototype; //caching, resolving Quick Find        var_cache = {}; //extension Operators        var_alias = [            /@/g, "_e.",            /and/gi, "&&",            /or/gi, "| |",            /<>/g, "! =",            /not/gi, "!",            /([^=<>]) = ([^=]|$)/g, ' $1==$2 '        ]; var_rquote =/""/G; var_rquotetemp =/!~/G; //compiling        var_complite =function(code) {returnEval ("0," +code); }        //Convert extended symbols to standard JS symbols        var_interpret =function(exp) {Exp= Exp.replace (_rquote, "!~"); vararr = Exp.split (' "'); varI, n =arr.length; varK =_alias.length;  for(vari = 0; I < n; i + = 2) {                vars =Arr[i];  for(varj = 0; J < K; J + = 2) {                    if(Index (S, _alias[j]) >-1) {s= S.replace (_alias[j], _alias[j + 1]); }} Arr[i]=s; }             for(vari = 1; I < n; i + = 2) {Arr[i]= Arr[i].replace (_rquotetemp, ' \ \ ')); }            returnArr.join (' "'); }        //defining a modal function        var_templ =function(_list) {var_ret = []; var_i =-1;  for(var_kinch_list) {                var_e =_list[_k]; if(_e! =_proto[_k]) {                    if($C) {_ret[++_i] =_e; }                }            }            return_ret;        }. toString (); //ways to extend Queries_proto. Query =function(exp) {if(!exp) {                return []; }            varfn =_cache[exp]; Try {                if(!fn) {                    varCode =_interpret (exp); Code= _templ.replace ("$C", code); FN= _cache[exp] =_complite (code); }                returnfn This); } Catch(e) {return []; }        }        varDotest =function () {            varHeros = [            //name ============ attack ===== Anti-======= strength = Agility ===== Intelligence = ={name: ' Ice room witch ', dp:38, ap:1.3, Str:16, Dex:16, int:21}, {name:' Silent Warlock ', dp:39, ap:1.1, Str:17, Dex:16, int:21}, {name:' Naga Demon ', dp:51, ap:6.0, str:21, dex:21, int:18}, {name:' Bounty hunter ', dp:39, ap:4.0, Str:17, dex:21, int:16}, {name:' Poison Warlock ', dp:45, ap:3.1, str:18, dex:22, int:15}, {name:' Guardian of the Light ', dp:38, ap:1.1, Str:16, dex:15, int:22}, {name:' Alchemist ', dp:49, ap:0.6, str:25, Dex:11, int:25 }            //...            ]; varMatch = heros. Query (' @Str >20 and @Dex >20 '); Showresult (match[0]);</p>//Enquiry: The End of "Shi"            //results: Silent Warlock, Poison Warlock, alchemist            varMatch = heros. Query (' Right (@name, 1) = ' '); Showresult (match[0]); }        functionShowresult (Result) {alert (Result.name+ "" + result. DP + "" + result. AP + "" + result. Str + "" + result. Dex + "" +result.        INT); }

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JavaScript-implemented query JSON instance code