I want to be able to execute a function which is saved as a value on Map object by referencing the key. For example:
const myMap = new Map();
myMap.set("myKey", function(argument) {
console.log(argument);
});
let value = myMap.get("myKey");
console.log(value);
The function is output to the console but I can't figure out how to actually execute the function.
I tried let test = new Function(value) but got the error message "Function statements require a function name"
Invoke the function with parentheses:
const myMap = new Map();
myMap.set("myKey", function(argument) {
console.log(argument);
});
let value = myMap.get("myKey");
value('Hello World!')As get method of myMap will give you the function, You just have to invoke it as
myMap.get("myKey")("Hello World!")
const myMap = new Map();
myMap.set("myKey", function (argument) {
console.log(argument);
});
let value = myMap.get("myKey")("Hello World!");