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Start your free trialLibor Gess
6,880 PointsWhy the teacher started talk about ob programming?
I do not understand the code of the example. I do know how to write the arrow functions but why the teacher showing this example and talking about OB programming?
var Person = function (data) {
for (var key in data) {
this[key] = data[key];
}
this.getKeys = () => Object.keys(this);
}
var Alena = new Person({ name: 'Alena', role: 'Teacher' });
console.log('Alena\'s Keys:', Alena.getKeys()); // 'this' refers to 'Alena'
var getKeys = Alena.getKeys;
console.log(getKeys()); // 'this' refers to the node process
I do not understand and I find this example completely confusing and irritable. Also what was the purpose of the example? Why I should still pay for this context?
1 Answer
Steven Parker
231,186 PointsI think the point of the demonstration is to show how the keyword "this" has different meanings when used in different contexts. Also how conventional functions create "this" within their scope, but arrow functions do not.