Discussion :: Javascript - CS
-
Consider the following code snippet
function f(o)
{
if (o === undefined) debugger;
}
What could be the task of the statement 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
Explanation :
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.
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