Question

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How to pass and call a function as an argument in Javascript?

Is the code bellow correct for executing a function passed as an argument to another function? Or should the line callback; be replaced with callback();, or something else?

function load(arg1, arg2, callback) {
    var s = arg1 + arg2;
    callback;
}

Also, would there need to be a different approach for passing anonymous functions as arguments? i.e.:

load(1, 2, function(){ 
    // do something 
});

Answer 1

You need to change this way:

function load(arg1, arg2, callback) {
    var s = arg1 + arg2;
    callback();
}