portion of browser software that reads and executes javascript
JavaScript engine A JavaScript engine is a program or interpreter which executes JavaScript code. A JavaScript engine may be a traditional interpreter, or it may utilize just-in-time compilation to bytecode in some manner.[1] Although there are several uses for a JavaScript engine, it is most commonly used in Web browsers.[2][3][unreliable source?]
Chrome OS Chrome OS is an operating system designed by Google that is based on the Linux kernel and uses the Google Chrome web browser as its principal user interface. As a result, Chrome OS primarily supports web applications.[7]