JsArrayFunctionExpOne/Scripts/JsScript.js at master · AmarjitSinghCodeHub/JsArrayFunctionExpOne · GitHub

39 lines (26 loc) · 928 Bytes

const btn=document.querySelector("#btn");

const msg=document.querySelector("#divMsg");

var arr=[22,34,35,76,78];

var arr2;

var arr3;

btn.addEventListener("click",()=>{

//unshift();

//arr.unshift(40); // adds item at first of the array

// Shift()

//arr.shift(); // removes item from first index onwards

// arr.shift(); // will remove next item

// arr.shift();

// arr.pop(); // removes item from the end of array

// arr.pop();

// arr.push(1000); // adds item at the end of array

// arr.push(22);

//arr.reverse(); // reverse the array value.

arr2=arr; // ref copy

arr3=[...arr]; // value copy

arr.reverse(); // value of arr3 will not reverse.

//arr3.reverse();

msg.innerHTML=`value of arr2 : ${arr} <br/> value of arr2 : ${arr2} <br/> value of arr3 : ${arr3}`;

});

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