How to write PHP code directly in JavaScript _javascript tips

First, embed PHP code in javascript
JavaScript is included in the JS file, then the JS file can also write directly PHP code, but contains a JS file is the extension to be converted to PHP, such as:

Copy Code code as follows:

<script herf= "js/demo.js.php" ></script>

Default values for JavaScript function parameters
You can set the default parameters in C language by doing this:

Copy Code code as follows:

void foo (int a, int b = 1, bool c = false);

But JavaScript can't do this:
Newgame:function (A, b = 0)
IE and chrome will make an error, and FF will ignore it directly.
We can do this with a arguments read-only variable array:

Copy Code code as follows:

function Newgame () {
var a = Arguments[0]? Arguments[0]: 1;
var B = arguments[1]? ARGUMENTS[1]: false;
function content
}