7+ デベロッパーツール使い方 Article

【初心者必見】まずはこれだけ！デベロッパーツールの使い方【chrome】 mogaBlog from mogablog.work

Introduction

As a developer, you want to make sure that your website is performing at its best. One way to do this is by using Developer Tools, which are a set of tools that allow you to inspect and debug your website. In this article, we will be discussing how to use Developer Tools in 2023.

Getting Started

To open Developer Tools, simply right-click anywhere on the page and select "Inspect". This will open up the Developer Tools panel, which is divided into several sections. The main sections are the Elements, Console, Sources, and Network tabs.

Elements Tab

The Elements tab allows you to inspect the HTML and CSS of your website. You can also use it to modify the HTML and CSS on the fly. This is useful for testing out changes before making them permanent.

Console Tab

The Console tab is where you can see any errors or warnings that your website may be generating. You can also use the Console tab to execute JavaScript commands and log messages.

Sources Tab

The Sources tab is where you can view and edit the JavaScript files that are used on your website. You can also set breakpoints and step through your code to help you identify any issues.

Network Tab

The Network tab is where you can see all of the requests that your website is making. This includes requests for images, scripts, and other resources. You can use this information to optimize your website's performance.

Tips and Tricks

Here are some tips and tricks for using Developer Tools in 2023: - Use the "Inspect Element" feature to quickly find out which CSS rule is affecting a particular element on your website. - Use the "Console" tab to test out JavaScript commands before adding them to your code. - Use the "Sources" tab to set breakpoints and step through your code to identify issues. - Use the "Network" tab to identify any resources that are taking a long time to load and optimize them. - Use the "Device Mode" feature to test your website on different screen sizes and resolutions.

Conclusion

In conclusion, Developer Tools are an essential part of any developer's toolkit. By using them, you can identify and fix issues with your website, optimize its performance, and test it on different devices. If you haven't already, we highly recommend that you start using Developer Tools in 2023.