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Chapter 19 478
To remove all breakpoints, do one of the following:
•
In the JavaScript Debugger window, click the Remove All Breakpoints button.
•
In the Code view (or Code inspector), select Remove All Breakpoints
from the Code Navigation pop-up menu in the toolbar or choose Edit >
Remove All Breakpoints.
Stepping through code
You can step through your code to execute your statements one at a time and
monitor their effects in your program. For example, you can step over an
if
condition and see if the program stops at the first line within the conditional
statement or at the next executable line after the
if
statement.
When the debugger stops at a statement with a function call, you can check the
function to make sure it executes correctly. If the function is correct, you can step
out of it to allow the debugger to run until the function returns. The program will
stop again at the next statement after the function call location. If you attempt to
step into a statement that contains a nonstandard JavaScript function, the
behavior will be that of stepping over.
To step over a statement:
Click the Step Over button at the top of the JavaScript Debugger window.
When the program stops at any statement (including those with a function call),
you can step over that statement to continue and pause before the next statement.
To step into a function:
Click the Step In button at the top of the JavaScript Debugger window.
To step out of a function:
Click the Step Out button.
You can only use Step Out when the debugger is within a user-defined function.
Stepping out causes the remaining statements in the function definition to be
executed. The debugger will pause at the next statement.