返回在 Javascript 文件中定义的所有函数
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Return all of the functions that are defined in a Javascript file
提问by Anderson Green
For the following script, how can I write a function that returns all of the script's functions as an array? I'd like to return an array of the functions defined in the script so that I can print a summary of every function that is defined in the script.
对于以下脚本，我如何编写一个函数，将脚本的所有函数作为数组返回？我想返回脚本中定义的函数数组，以便我可以打印脚本中定义的每个函数的摘要。
function getAllFunctions(){ //this is the function I'm trying to write
//return all the functions that are defined in the script where this
//function is defined.
//In this case, it would return this array of functions [foo, bar, baz,
//getAllFunctions], since these are the functions that are defined in this
//script.
}
function foo(){
//method body goes here
}
function bar(){
//method body goes here
}
function baz(){
//method body goes here
}
采纳答案by KooiInc
Declare it in a pseudo namespace, for example like this:
在伪命名空间中声明它，例如像这样：
var MyNamespace = function(){
function getAllFunctions(){
var myfunctions = [];
for (var l in this){
if (this.hasOwnProperty(l) &&
this[l] instanceof Function &&
!/myfunctions/i.test(l)){
myfunctions.push(this[l]);
}
}
return myfunctions;
}
function foo(){
//method body goes here
}
function bar(){
//method body goes here
}
function baz(){
//method body goes here
}
return { getAllFunctions: getAllFunctions
,foo: foo
,bar: bar
,baz: baz };
}();
//usage
var allfns = MyNamespace.getAllFunctions();
//=> allfns is now an array of functions.
// You can run allfns[0]() for example
回答by Ashwin Singh
Here is a function that will return all functions defined in the document, what it does is it iterates through all objects/elements/functions and displays only those whose type is "function".
这是一个函数，它将返回文档中定义的所有函数，它的作用是遍历所有对象/元素/函数，并仅显示类型为“函数”的那些。
function getAllFunctions(){
var allfunctions=[];
for ( var i in window) {
if((typeof window[i]).toString()=="function"){
allfunctions.push(window[i].name);
}
}
}
? Here is a jsFiddle working demo?
? 这是一个jsFiddle 工作演示？
回答by Dave Brown
function foo(){/*SAMPLE*/}
function bar(){/*SAMPLE*/}
function www_WHAK_com(){/*SAMPLE*/}
for(var i in this) {
if((typeof this[i]).toString()=="function"&&this[i].toString().indexOf("native")==-1){
document.write('<li>'+this[i].name+"</li>")
}
}