let dailyActivities =['eat','sleep'];// add an element at the end
dailyActivities.push('exercise');console.log(dailyActivities);// ['eat', 'sleep', 'exercise']
//create an new function that can be used by any arrayArray.prototype.second=function(){returnthis[1];};var myArray =["item1","item2","item3"];console.log(myArray.second());//returns 'item2'
const myArray =['hello','world'];// add an element to the end of the array
myArray.push('foo');// ['hello', 'world', 'foo']// add an element to the front of the array
myArray.unshift('bar');// ['bar', 'hello', 'world', 'foo']// add an element at an index of your choice// the first value is the index you want to add at// the second value is how many you want to delete (0 in this case)// the third value is the value you want to insert
myArray.splice(2,0,'there');// ['bar', 'hello', 'there', 'world', 'foo']
// use of .push() on an array// define arraylet numbers =[1,2]// using .push()
numbers.push(3)// adds the value 3 to the end of the listconsole.log(numbers)// [1, 2, 3]
// Add to the end of arraylet colors =["white","blue"];
colors.push("red");// ['white','blue','red']// Add to the beggining of arraylet colors =["white","blue"];
colors.unshift("red");// ['red','white','blue']// Adding with spread operatorlet colors =["white","blue"];
colors =[...colors,"red"];// ['white','blue','red']
// To merge two or more arrays you shuld use concat() method.const array1 =['a','b','c'];const array2 =['d','e','f'];const array3 = array1.concat(array2);console.log(array3);// expected output: Array ["a", "b", "c", "d", "e", "f"]
var arrayExample =[53,'Hello World!'];console.log(arrayExample)//Output =>[53,'Hello World!']//You can also do this
arrayExample.push(true);console.log(arrayExample);//Output =>[53,'Hello World!',true];
let array =["Chicago","Los Angeles","Calgary","Seattle",]// print the array console.log(array)//Adding a new item in an array without touching the actual array
array.push('New Item')< variable_name >.push(<What you want to add >)//How many items does the array have?console.log("This array has", array.length,"things in it")