使用方法 - 传递背景或通话/申请？

Question

In javascript, If I have to invoke a function in a different context, what is the preferred way to invoke the same. and why?

1) Pass this as a parameter like below:

callthisfunction(arg1, arg2, this);
function callthisfunction(arg1, arg2, context) {}

OR

2) Make use of call/apply like given below:

callthisfunction.call(this, arg1, arg2);

Answer 1

That depends on how the function works. If you are refering to the context by this , I would prefer the call .
You can use context , if you want to work with let's say the current and the passed scope.

You should maybe also take a look at this article . It describes call a little bit more in detail. Also apply might be useful for you in the future.

EDIT: Also take a look at this answer and the provided example .