this keyword is used to denote the current instance of the object. The this keyword is used when we want to use a object within our function.
There are two ways that we can implement comments in our application. They are single line comments and multi line comments. Single line of comments are useful when we want to comment a single line of code. // is used at the starting of the line. Multi line comments are used when we want to comment more than one line of code.We place /* at the starting and */ at the end of the line where you want to end the comment.
How can we check the status of a checkbox?