我一直在寻找解决方案，但找不到任何有效的方法.
我有一个名为onlyVideo的变量.
"onlyVideo"字符串被传递到函数中.我想把函数中的变量onlyVideo设置为.我该怎么做？
(有许多变量可以被调用到函数中，所以我需要它动态工作，而不是硬编码的if条语句.)
Edit: There’s probably a better way of doing what you’re attempting to do. I asked this early on in my JavaScript adventure. Check out how JavaScript objects work.个
简单介绍:
// create JavaScript object
var obj = { "key1": 1 };
// assign - set "key2" to 2
obj.key2 = 2;
// read values
obj.key1 === 1;
obj.key2 === 2;
// read values with a string, same result as above
// but works with special characters and spaces
// and of course variables
obj["key1"] === 1;
obj["key2"] === 2;
// read with a variable
var key1Str = "key1";
obj[key1Str] === 1;