What would be the result of 3+2+”7″?
Since 3 and 2 are integers, they will be added numerically. And since 7 is a string, its concatenation will be done. So the result would be 57.
Difference between “==” and “===”?
“==” checks only for equality in value, whereas “===” is a stricter equality test and returns false if either the value or the type of the two variables are different.
How can you convert the string of any base to an integer in JavaScript?
The parseInt() function is used to convert numbers between different bases. parseInt() takes the string to be converted as its first parameter. The second parameter is the base of the…
What is called Variable typing in Javascript?
Variable typing is used to assign a number to a variable. The same variable can be assigned to a string. Example: i = 10; i = "string;" This is called…
What are all the looping structures in JavaScript?
Following are looping structures in Javascript: For While Do-while loops
How to read and write a file using JavaScript?
There are two ways to read and write a file using JavaScript Using JavaScript extensions Using a web page and Active X objects
How can the style/class of an element be changed?
It can be done in the following way: document.getElementById("myText"). style. fontSize = "20"; or document. getElementById ("myText"). className = "anyclass";
Does JavaScript support automatic type conversion?
Yes, JavaScript does support automatic type conversion. It is the common way of type conversion used by JavaScript developers
How you can submit a form using JavaScript?
To submit a form using JavaScript use document.form.submit(); document.form.submit();
What is === operator?
=== is called a strict equality operator, which returns true when the two operands have the same value without conversion.