What is fn.call

function Product(name, price) {
  this.name = name;
  this.price = price;
}

function Food(name, price) {
  Product.call(this, name, price);
  this.category = 'food';
}

function Toy(name, price) {
  Product.call(this, name, price);
  this.category = 'toy';
}

const cheese = new Food('feta', 5);
const fun = new Toy('robot', 40);

Source: developer.mozilla.org

What is fn.call

const animals = [
  { species: 'Lion', name: 'King' },
  { species: 'Whale', name: 'Fail' }
];

for (let i = 0; i < animals.length; i++) {
  (function(i) {
    this.print = function() {
      console.log('#' + i + ' ' + this.species
                  + ': ' + this.name);
    }
    this.print();
  }).call(animals[i], i);
}

Source: developer.mozilla.org

Similar codes

7 votes147 views2 answers
What is the output of the following code? np.arange(0,22,6)
Python
0 vote222 views1 answer
Are there learning activities for django-debug-toolbar
Python Django
0 vote255 views9 answers
Django recapcha
Python Django
0 vote156 views1 answer
Drop duplicates pandas considering lowercase
Python
24 votes250 views10 answers
Python timer
Python
2 votes152 views2 answers
Fibonacci sequence python 2.7
Python
5 votes166 views1 answer
Python read file without newline
Python
0 vote172 views1 answer
Python replace negative infinity
Python
1 vote194 views2 answers
Tensor get value
Python
0 vote167 views1 answer
Wert in array suchen python
Python