如何在javascript中写入php代码
这篇文章介绍了javascript中直接写php代码的方法,有需要的朋友可以参考一下
一、在javascript中嵌入php代码
javascript若是通过js文件包含进来的,那么js文件中也可以直接写php代码,只不过包含js文件是扩展名要改成php,如:
代码如下:
<script herf="js/demo.js.php"></script>
二、javascript函数参数的默认值
c语言中可以通过这样来设置默认参数:
代码如下:
void foo(int a, int b = 1, bool c = false);
但是javascript却不能这样:
newGame : function(a, b = 0)
ie和chrome会报错,ff会直接忽略。
我们可以用arguments只读变量数组来实现:
代码如下:
function newGame(){ var a = arguments[0] ? arguments[0] : 1; var b = arguments[1] ? arguments[1] : false; //函数内容 }
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