NIELIT O Level Previous Year Solved Paper - M2 R5 JULY 2022 WEB DESIGNING AND PUBLISHING

Consider the below div tag content statement, how to print the value of "UserName"?

<div ng-app=" ng-init="firstName=John">
<p>Input something in the input box:</p>
<p>Name: sinput type="text" ng-model="UserName"></p>
<p>You wrote: p>
<div>

Which of the following code is most efficient?

Code 1

for(var number-10;number>=1;number-)
{
document.writeln(number);
}

Code 2

var number=10;
while(number>=1)
{
document.writeln(number);
number++
}

What will be the output of the following JavaScript code ?

<p id="demo"></p>
<script>
var js = 10;
js*=10;
document.getElementByld("demo").innerHTML = js;
</script>

What type of value gets printed if we add the following two variables ?

var a = "10";
var b =50;

What is the output of the following JavaScript code?

<script>
var a;
document.getElementByld("demo").innerHTML = a+1;
</script>