In JavaScript, we use if
statements primarily to do something only if a condition is true.
Here's a brief overview of the options you provided:
-
To break out of some block of code: This can be done with statements like
break
orreturn
, but not withif
statements. -
To do something only if a condition is true: This is the primary use of
if
statements. They allow the code to execute a certain block only when the specified condition evaluates to true. -
To do something while a condition is true: This is typically accomplished using loops such as
while
orfor
, notif
statements. -
To repeat something for a fixed number of times: This is usually done with loops such as
for
orwhile
, rather than withif
statements.
In summary, the correct answer is: To do something only if a condition is true.