Javascript Snippets

The includes array method checks whether the string "Gold" is contained as an item in the array, not whether one of the array items contains the substring. You'd want to use some with the includes string method for that:

Ressources.some(res => res.includes("Gold"))

myArray
    .filter(Boolean);

var groupedCars = _.groupBy(cars, function(car) { return car.make; });

const date1 = new Date('7/13/2010');
const date2 = new Date('12/15/2010');
const diffTime = Math.abs(date2 - date1);
const diffDays = Math.ceil(diffTime / (1000 * 60 * 60 * 24)); 
console.log(diffTime + " milliseconds");
console.log(diffDays + " days");

Date.prototype.addDays = function(days) {
    var date = new Date(this.valueOf());
    date.setDate(date.getDate() + days);
    return date;
}

var date = new Date();

alert(date.addDays(5));

var today = new Date().toISOString().slice(0, 10);

const object1 = {
  name: 'Flavio'
}

const object2 = {
  age: 35
}

const object3 = {...object1, ...object2 }