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oviniciusfeitosa/Javascript execute callback.md

Created October 16, 2019 15:15
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Javascript execute callback.md
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Javascript execute callback.md 
function Thing(name) {
    this.name = name;
}
Thing.prototype.doSomething = function(callback) {
    callback.call(this);
}

function foo() {
    alert(this.name);
}

var t = new Thing('Joe');
t.doSomething(foo);  // Alerts "Joe" via `foo`
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