Javascript Questions Set 1:
Which property helps to initiate HTTP requests?
Solution:
Deduce the output of the following code:
<script>
document.write(typeof("3"*"4"))
</script>
Solution:
Why do we need a bubble chart?
Solution:
Which object is passed as the argument to handlers for keydown, keypress and keyup events?
Solution:
Which two functions are not allowed in any secure subset?
Solution:
When are mouse events generated?
Solution:
What is the output of the following code?
var materials = [
'Hydrogen',
'Helium',
'Lithium',
'Beryllium'
];
console.log(materials.map(material => material.length));
Solution:
Which of the following calculations is correct to determine the time taken for a page to load once it is received from the server?
Solution:
What will be the role of the continue keyword in the following JavaScript code snippet?
while (a != 0) {
if (a == 1) {
continue;
} else {
a++;
}
}
Solution:
What will be the output of the following code?
class formatDate extends Date {
constructor(dateStr) {
super(dateStr);
}
getFormattedDate() {
const months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',
'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
return `${this.getDate()}-${months[this.getMonth()]}-${this.getFullYear()}`;
}
}
console.log(new formatDate('August 19, 1975 23:15:30').getFormattedDate());
Solution:
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