In Javascript, sometimes a function is bound to an object. Within this function the object is represented with this.
In some cases you want to remove the reference to this when you execute or pass the function.
In this case, the following syntax disassociates the function from the object:
(0, obj.func)(params)
Example:
"use strict"; // removes 'Window'-object as value of this in the global scope.
function func () {
console.log(this);
}
const obj = {}
obj.func = func;
obj.func(); // returns obj
(0, obj.func)(); // returns <undefined>