.NET/Java PDF, Tiff, Barcode SDK Library

If you run this code with ruby debugtest.rb, you ll get the following result:


But say you run it with the Ruby debugger like this:

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Raw strings aren t too picky about backslashes, which can be very useful sometimes.10 In ordinary strings, the backslash has a special role: It escapes things, letting you put things into your string that you couldn t normally write directly. For example, a new line is written \n, and can be put into a string like this: >>> print 'Hello,\nworld!' Hello, world! This is normally just dandy, but in some cases it s not what you want. What if you wanted the string to include a backslash followed by an n You might want to put the DOS pathname C:\nowhere into a string, for example:

You ll see something like this appear:

example of how the simple visual surfaces of BBP presentations offer few clues that there is a sophisticated verbal strategy beneath them, yet the powerful impact of the approach is very real and profound. As you apply simple visual surfaces to your own BBP verbal structures, you ll begin to tap into similar results in your own presentations.

Debug.rb Emacs support available debugtest.rb:1:i = 1 (rdb:1)

This means the debugger has loaded The third line shows you the current line of code ready to be executed (the first line, in this case), and the fourth line is a prompt that you can type on The function of the debugger is similar to irb, and you can type expressions and statements directly onto the prompt here However, its main strength is that you can use special commands to run debugtestrb line by line, or set breakpoints and watches (breakpoints that rely on a certain condition becoming true for example, to stop execution when x is larger than 10) Here are the most useful commands to use at the debugger prompt: list: Lists the lines of the program currently being worked upon You can follow list by a range of line numbers to show For example, list 2-4 shows code lines 2 through 4.

The Trial example showed a range of verbal and visual techniques that you can apply to your own presentations even if you never set foot in a courtroom. The next example, named The Plan, might come in handy if you nd yourself leading a team toward accomplishing a project. In this scenario, your group has a deadline to accomplish a task, but you re running into problems that might delay the project. Most of the people on your team work in your local of ce, so you ll present this version live to them tomorrow morning; the rest of the team works in different cities, so you ll give the same presentation tomorrow afternoon using a Web conferencing tool.

Without any arguments, list shows a local portion of the program to the current execution point step: Runs the next line of the program step literally steps through the program line by line, executing a single line at a time After each step, you can check variables, change values, and so on This allows you to trace the exact point that bugs occur Follow step by the number of lines you wish to execute if it s higher than 1, such as step 2 to execute two lines cont: Runs the program without stepping Execution will continue until the program ends, reaches a breakpoint, or a watch condition becomes true break: Sets a breakpoint at a particular line number, such as with break 3 to set a breakpoint at line 3 This means that if you continue execution with cont, execution will run until line 3 and then stop again.

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