CodeMirror is a

JavaScript JavaScript (), often abbreviated as JS, is a programming language that is one of the core technologies of the World Wide Web, alongside HTML and CSS. As of 2022, 98% of websites use JavaScript on the client side for webpage behavior, of ...

component Circuit Component may refer to: •Are devices that perform functions when they are connected in a circuit. In engineering, science, and technology Generic systems * System components, an entity with discrete structure, such as an assem ...

that provides a

code editor A source-code editor is a text editor program designed specifically for editing source code of computer programs. It may be a standalone application or it may be built into an integrated development environment (IDE) or web browser. Source-code ed ...

in the browser. It has a rich programming

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and a focus on extensibility.

History

The first version of the editor was written early 2007, for the console in the Eloquent JavaScript website. The code was first packaged up and released under the name CodeMirror in May 2007. This version was based on the contentEditable feature of browsers. In late 2010, the

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project, another JavaScript-based code editor, pioneered new implementation techniques and demonstrated that it is possible, even in JavaScript, to handle documents with many thousands of lines without degraded performance. This prompted a rewrite of CodeMirror along the same principles. The result was version 2, which no longer relied on contentEditable and significantly improved performance.

References

External links

*
Blog series about CodeMirror internals
{{Web-software-stub JavaScript libraries JavaScript-based HTML editors Software using the MIT license

History

See also

References

External links