JavaScript

1.var arr= [3,5,10,15,23,22,25,35,56]
    o/p: [ 5, 10, 15, 25, 35]
    var arr= [3,5,10,15,23,22,25,35,56]
var num2= []
for (i in arr) {
if(arr[i]%5==0) {
num2.push(arr[i])
}
}
console.log(num2)

A:Output:
[ 5, 10, 15, 25, 35]

2.var arr=["htmL","csS","javaScrIPT","react","angulaR","nodE","EXPREss"];
    o/p: ["htmL", "csS", "javaScrIPT", "react", "angulaR", "nadE", "EXPREss"]
    var arr = ["htmL", "csS", "javaScrIPT", "react", "angulaR", "nodE",
"EXPREss"];
var arr2 = [];
for (var i in arr) {
if (arr[i]!== arr[i].toLowerCase()) {
arr2.push(arr[i]);
}
}
arr2.pop();
console.log(arr2);

A:Output:
[ 'htmL', 'csS', 'javaScrIPT', 'angulaR', 'nodE']

3.var arr= ["html", "css","js","react","angular"]
    o/p: [ 'HTML', 'JS', 'ANGULAR']
    var arr= ["html", "css","js","react","angular"]
    var arr1= []
    for (i in arr) {
    if(i%2==0) {
    arr1.push(arr[i]. toUpperCase())
    }
    }
    console.log(arr1)

A:Output:
[ 'HTML', 'JS', 'ANGULAR']