apply permits to call a function stored in a variable specifying:
If you want to execute dynamically a string that stores javascript, you use the eval function.
let dynamicCall = function(){
console.log("The name property of this is: "+this.name);
console.log("The arguments are: "+Object.values(arguments).join(", "));
}
console.log("First Call");
dynamicCall.apply( { name: "First Call" }, ["arg1", "arg2"] )
console.log("Second Call");
dynamicCall.apply( { name: "Second Call" }, ["arg3", "arg4"] )