I want to create "foo" function which has a callback as argument, and also wanted the callback to have two arguments as mentioned below. I tried, but didn't get a solution yet.
it doesn't have any usecase it's just a challenge for myself :)
function foo(callback){
callback();
}
foo((arg1,arg2)=> {
arg1=0;
arg2=1;
});
what should i do?
The arguments passed to the callback are created by the function calling it, so in your case foo does that:
function foo(callback){
callback(/*arg1: */ 0, /* arg2: */ 1);
}
foo((arg1,arg2) => {
console.log("arg1 is", arg1, "arg2 is", arg2);
});You call a callback just like you call any other function.
fixed.
this is what i learned and i want to share with you, to create a simple callback function we can write:
function foo(DoSomeThing){
DoSomeThing();
}
and to test that :
foo(function(){
console.log(`Hello world`);
});
this function didn't have any arguments, so if we want to add arguments we shuold do something like :
function foo2(doSomeThing){
doSomeThing(argument1=0,argument2=0);
}
and to test that :
foo2((arg1,arg2) => {
console.log(`arg1 : ${arg1} and arg2 : ${arg2}`);
});
in this case answer is : arg1 : 0 and arg2 : 0
in the first example i used callback function and in the second one i used arrow function.it depends on you to choose any of them...
foo?