const array = [1,2,3,4,5]; const firstElement = array.shift(); // array -> [2,3,4,5] // firstElement -> 1
Here is what the above code is Doing:
1. We create an array with 5 elements.
2. We call the shift() method on the array.
3. The shift() method removes the first element from the array and returns it.
4. We store the returned value in a variable called firstElement.
5. We log the value of firstElement to the console.
Here is what the above code is Doing: 1. We are creating a new Angular module called “myApp”. 2. We are creating a new Angular controller called “myCtrl”. 3. We are attaching the controller to the module. 4. We are attaching the module to the HTML document. 5. We are creating a new Angular expression…
var data = [ // the array to be filtered ]; var filteredArray = data.filter(item => (item.name === req.query.q)); Here is what the above code is Doing: 1. We’re creating an array called data. 2. We’re creating a variable called filteredArray. 3. We’re using the filter() method to filter the data array. 4. We’re using…
document.getElementsByClassName(‘class_name’)[0].style.visibility=’hidden’; Here is what the above code is Doing: 1. It’s getting the element with the class name ‘class_name’ 2. It’s getting the first element in the list of elements with the class name ‘class_name’ 3. It’s setting the visibility of the element to ‘hidden’
$(function(){ var s = “jpeg, jpg, gif, png”; var match = s.split(‘, ‘) console.log(match) for (var a in match) { var variable = match[a] console.log(variable) } }) Here is what the above code is Doing: 1. We’re creating a string called s. 2. We’re splitting the string s into an array called match. 3. We’re…
Date.now() // 1602680486141 Here is what the above code is Doing: 1. We’re creating a new Date object. 2. We’re calling the now() method on the Date object. 3. We’re storing the result of the now() method in a variable called now.
const fetch = require(“node-fetch”); Here is what the above code is Doing: 1. We’re importing the fetch function from the node-fetch package. 2. We’re creating a variable called url and assigning it the value of the URL we want to fetch. 3. We’re calling the fetch function and passing it the URL we want to…