Find and call javascript functions in global scope

Question

I have registered some javascript functions in the global scope:

function Test1() {}
function Test2() {}

Now I want to run all javascript functions whose name starts with 'Test', how to do it?

I want to prevent saving each functions into a variable because it does not scale. Nor to push them to a queue and execute them later, since people need to remember adding their functions to the queue when they write the test and I don't want that.

Answer 1

 var globalKeys = Object.keys(window); for(var i = 0; i < globalKeys.length; i++){ var globalKey = globalKeys[i]; if(globalKey.includes("Test") && typeof window[globalKey] == "function"){ window[globalKey](); } } 

Answer 2

function Test() { console.log('test') }
Object.keys(window).filter(s => s.startsWith('Test')) // [ "Test" ]

As you can see, functions are defined on the global scope.

const isTest = s => typeof s === 'function' && s.startsWith('Test')
Object.keys(window).filter(isTest).map(t => t())

I don't know your use case entirely, but I suspect it would be better to provide your own object.

const tests = {}
tests.Test1 = () => {/*...*/}

Answer 3

You could get all elements of window and check them. Here is a basic starting point :

for(let objectName in window){ console.log(`${objectName} : ${typeof window[objectName]}`) }

Now objectName is actually a string, it could be anything, just check if it starts with Test , and if its type is a function.