Consider the following code snippet
function f(o)
{
if (o === undefined) debugger;
}
What could be the task of the statement debugger?
function f(o)
{
if (o === undefined) debugger;
}
A. It does nothing but a simple breakpoint
B. It debugs the error in that statement and restarts the statement’s execution
C. It is used as a keyword that debugs the entire program at once
D. All of the mentioned
Answer: Option A
Solution(By Examveda Team)
The debugger statement normally does nothing. If, however, a debugger program is available and is running, then an implementation may (but is not required to) perform some kind of debugging action. In practice, this statement acts like a breakpoint: execution of JavaScript code stops and you can use the debugger to print variable’s values.This Question Belongs to Javascript >> Basic And Variables
The development environment offers which standard construct for data validation
A. Super controlled loop constructs
B. Case sensitivity check
C. Validation constructs
D. All of the mentioned
The main purpose of a “Live Wire” in NetScape is to
A. Create linkage between client side and server side
B. Permit server side, JavaScript code, to connect to RDBMS
C. Support only non relational database
D. To interpret JavaScript code
A JavaScript program developed on a Unix Machine
A. will throw errors and exceptions
B. must be restricted to a Unix Machine only
C. will work perfectly well on a Windows Machine
D. will be displayed as a JavaScript text on the browser
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