Call javascript function which name is in variable [duplicate]

问题

This question already has answers here:

How to execute a JavaScript function when I have its name as a string (32 answers)

Closed 3 years ago.

The problem is next: Assume that we have a select. Onchange event we need to call some function, but name of this function kept in variable. How to call this function ?

回答1:

window[name]()

You can call functions by name reference by selecting them as a property of window and executing them

回答2:

have you tried variableName(); ?

We often pass around callback functions, which might look something like this

function doSomething(callbackFunction){
    // some happy code
    callbackFunction()
}

来源：https://stackoverflow.com/questions/6871165/call-javascript-function-which-name-is-in-variable