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Brent Guffens 2018-01-19 11:47:03 +01:00 • committed by GitHub
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1-js/03-code-quality/01-debugging-chrome/article.md
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@ -46,7 +46,7 @@ For example, here `1+2` results in `3`, and `hello("debugger")` returns nothing,
## Breakpoints ## Breakpoints
Let's examine what's going on within the code of the [example page](debugging/index.html). In `hello.js`, click at the line number `4`. Yes, right on the `"4"` digit, not on the code. Let's examine what's going on within the code of the [example page](debugging/index.html). In `hello.js`, click at line number `4`. Yes, right on the `4` digit, not on the code.
Congratulations! You've set a breakpoint. Please also click on the number for line `8`. Congratulations! You've set a breakpoint. Please also click on the number for line `8`.
@ -123,7 +123,7 @@ Now it's time to *trace* the script.
There are buttons for it at the top of the right pane. Let's engage them. There are buttons for it at the top of the right pane. Let's engage them.
<span class="devtools" style="background-position:-7px -76px"></span> -- continue the execution, hotkey `key:F8`. <span class="devtools" style="background-position:-7px -76px"></span> -- continue the execution, hotkey `key:F8`.
: Resumes the execution. If there are no additional breakpoints, then the execution just continues and the debugger looses the control. : Resumes the execution. If there are no additional breakpoints, then the execution just continues and the debugger loses control.
Here's what we can see after a click on it: Here's what we can see after a click on it:
@ -178,7 +178,7 @@ As we can see, there are three main ways to pause a script:
Then we can examine variables and step on to see where the execution goes wrong. Then we can examine variables and step on to see where the execution goes wrong.
There are many more options in developer tools than covered here. The full manual is at <https://developers.google.com/web/tools/chrome-devtools> There are many more options in developer tools than covered here. The full manual is at <https://developers.google.com/web/tools/chrome-devtools>.
The information from this chapter is enough to begin debugging, but later, especially if you do a lot of browser stuff, please go there and look through more advanced capabilities of developer tools. The information from this chapter is enough to begin debugging, but later, especially if you do a lot of browser stuff, please go there and look through more advanced capabilities of developer tools.