What to run to open javascript
To run JavaScript, you need some basic knowledge and tools. JavaScript is a text-based programming language that needs to be interpreted and executed in the browser.
First, you need a browser that supports JavaScript. Most modern browsers support JavaScript, including Google Chrome, Firefox, Safari, and Microsoft Edge. Make sure your browser has JavaScript enabled.
In most cases, JavaScript code can be embedded in HTML documents. To embed JavaScript code, you can use the

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