Sharp js function set

Then we will share several js prototype functions in ideal states. Mostly organize and modify the blog from the shadow
In addition, we recommend that you read the shadow book "Return of the King". If your js coding time is more than 5 hours a week, it is worth reading.
1. function Glue, many people get used to using jq. Sometimes jq is used for an event + = delegate similar to c #. It seems that this prototype function is enough.
Copy codeThe Code is as follows:
Function. prototype. $ concat = function (){
Var funcs = [this]. concat (Array. apply ([], arguments ));
Return function (){
Var ret = [];
For (var I = 0; I <funcs. length; I ++ ){
Var func = funcs [I] instanceof Function? Funcs [I]: new Function (funcs [I]);
Ret. push (func. apply (this, arguments ));
}
Return ret;
}
}
// Var concat = (function a (){
// Alert ("a:" + );
//}). $ Concat (function B (B ){
// Alert ("B:" + B );
//});
// Concat (1 );

2. function ke linghua and Ke linghua are an important feature of function-oriented languages. They are very different from the process-oriented programming ideas held by most people. I am confused. In my daily work, in addition to being able to write some code elegantly (or maybe weird), function KE Ling is not particularly "necessary ".
Copy codeThe Code is as follows:
Function. prototype. $ curry = function (){
With ({that: this })
Return function ()
{
Var args = Array. prototype. slice. call (arguments );
If (args. length <that. length)
{
Return function (){
Var _ args = args. concat (Array. prototype. slice. call (arguments ));
Return that. $ curry (). apply (this, _ args );
}
}
Else return that. apply (this, args );
}
}
// Var curry = (function f (a, B, c ){
// Alert ([a, B, c]);
//}). $ Curry ();
// Curry (1) (2) (3 );
// Curry (1, 2) (3 );

3. Object closure. I made the word, but I can understand the call in the comment. This function was originally designed to prove the equivalence between with and closure, but provided a very valuable model.
Copy codeThe Code is as follows:
Function. prototype. $ bind = function (object ){
Var callback = function (){
Return arguments [0];
}
With (object ){
Return eval ('callback ('+ this. toString () + ')');
}
}
// Var obj = {a: 1, B: 2 };
// Var bind = (function (){
// A = 10;
// B = 11;
//}). $ Bind (obj );
// Bind ();
// Alert (obj. );

4. string. Format. Even if many js coder want to have a string. Format method in c # (similar to java), it is not troublesome.
Copy codeThe Code is as follows:
String. prototype. $ format = function (){
Var ret;
For (var I = 1; I <arguments. length; I ++ ){
Var exp = new RegExp ('\ {' + (I-1) + '\}', 'G ');
Ret = (ret | this). replace (exp, arguments [I-1]);
}
Return ret;
}
// Alert ("{0}, {1}, {4}". $ format (0, 1, 2 ));

In the future, we will have the opportunity to share some of these sharp functions. For the moment, let's name the total number of functions, namely p. js.