How to embed a large number of string constants in JavaScript

If the number is small, it's okay. If the number is large, there will be a piece of text. The beautiful young people will use a lot of character connection symbols or even add indentation, which will be forced to be replaced by several lines. For example:
Copy codeThe Code is as follows:
Var html =
'<Div>' +
'<P> Hello </p>' +
'<P> world' </p>' +
'</Div> ';

This is fine. If there are many double quotation marks in the string, it will be more troublesome and the various escape characters will be dazzled.

In fact, you can solve this problem if you have little tips. We all think that the string must be in "..." or '...'. That's right. However, there is another place where strings can also be saved as non-code semantics, that is, the toString of a function, and the code of the entire function is output as a string-the comments are also retained!

Therefore, we write an empty function with a/**/comment in it, which is the constant content we want. Add a regular expression after toString to extract what we want!

Try now:

Copy codeThe Code is as follows:
Var RES_CODE = _ TEXT (function (){/*
# Include <iostream>

Int main ()
{
Std: cout <"Hello world" <std: endl;
Return 0;
}
*/});

Var RES_POEM = _ TEXT (function (){/*
Even more, stars are like rain.
Xiangmanlu, a BMW car.
Fengyi sound, the jade pot light turn, a night of fish dragon dance.
Moth snow Willow yellow wisp,
The smile is everywhere.
Search for him in the crowd,
Looking back, the man was in the dark.
*/});

Var RES_XML = _ TEXT (function (){/*
<ProjectDescription>
<Name> Hello </name>
<Comment> </comment>
<Projects>
</Projects>
<BuildSpec>
<BuildCommand>
<Name> com. adobe. flexbuilder. project. flexbuilder </name>
<Arguments>
</Arguments>
</BuildCommand>
<BuildCommand>
<Name> com. adobe. flexbuilder. project. Apollo builder </name>
<Arguments>
</Arguments>
</BuildCommand>
</BuildSpec>
</ProjectDescription>
*/});

Function _ TEXT (wrap ){
Return wrap. toString (). match (// \/\ * \ s ([\ s \ S] *) \ s \ * \/) [1];
}
Alert (RES_CODE );
Alert (RES_POEM );
Alert (RES_XML );

OK! In Chrome, the tabs in front of each line of comment are removed. If you just put the code, the problem is not very serious ~ Of course, there is a premise that the character cannot appear */

It is worth noting that comments are filtered out when the code is compressed, and some comments need to be excluded manually.