变量和标识符

JavaScript中不能作为变量名的关键字和保留字总结：

1、js中的关键字：

break case catch continue default

delete do else finally for

function if in instanceof new

return switch this throw try

typeof var void while with

2、js中的保留字：

abstract boolean byte char class

const debugger double enum export

extends final float goto implements

import int interface long native

package private protected public short