js method to load multiple functions

The usage is as follows:
function func(){alert("this is window onload event!");return;}
=func;
Or as follows:
=function(){alert("this is window onload event!");return;}

However, multiple functions cannot be loaded at the same time.

for example:

Copy the codeThe code is as follows:

 
function t(){ 
alert("t") 
} 
function b(){ 
alert("b") 
} 
 =t ; 
 =b ; 

The previous one will be overwritten later, and the above code will only output b.
At this time, the following methods can be used to solve the problem:

=function() { t(); b(); }

Another solution is as follows:

Copy the codeThe code is as follows:

 
function addLoadEvent(func) { 
var oldonload = ; 
if (typeof  != 'function') { 
 = func; 
} else { 
 = function() { 
oldonload(); 
func(); 
} 
} 
} 

Use as follows:

Copy the codeThe code is as follows:

 
function t(){ 
alert("t") 
} 
function b(){ 
alert("b") 
} 
function c(){ 
alert("c") 
} 
function addLoadEvent(func) { 
var oldonload = ; 
if (typeof  != 'function') { 
 = func; 
} else { 
 = function() { 
oldonload(); 
func(); 
} 
} 
} 

addLoadEvent(t); 
addLoadEvent(b); 
addLoadEvent(c); 
//Equivalent to =function() { t(); b(); c() ;}

I personally think it is faster to use implicit functions directly (such as: =function() { t(); b(); c() ;}). Of course, using addLoadEvent is more professional, so everyone can do it!