Update how to debug dictionary js.md

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# background
# How to debug dictionary javascript
## background
When some js functions do not work as expected, this article tries to give a debug solution to pinpoint the problem.
# goldendict-ng inspector
## goldendict-ng inspector
Goldendict-ng has embedded an inspector, you can trigger it manually using `F12`.
Screenshot:
![Inspector](../img/inspector.png)
# How to navigate to the specified element
## How to navigate to the specified element
Click the find element and move mouse to the specified element, click the element will navigate the source panel to the very place.
![steps](../img/inspector-steps.png)
# Modify the css style
## Modify the css style
you can play around with the css to modify the appearance of the html and check the results.
![style](../img/inspector-style.png)
# check javascript events
## check javascript events
- navigate to the specified element
- check eventlisterner panel
@ -36,7 +38,7 @@ If some desired event does not triggered , it can first check does the event lis
![breakpoint](../img/inspector-breakpoint.png)
# reproduce the issue in the goldendit
## reproduce the issue in the goldendit
following your normal operations and debugging the javascript code and pay attention to the console output. Whether any errors happened.
![Alt text](../img/inspector-console.png)