It is possible to use JavaScript inside a Jinja2 for loop block, but it is not recommended as it can lead to poor performance and security issues.
Jinja2 is a template engine that is used to generate HTML on the server-side, whereas JavaScript is a client-side programming language that is executed by the browser. When a Jinja2 template is rendered, the JavaScript code will be sent to the browser along with the HTML, but it will only be executed after the browser receives and parses the HTML.
When you use JavaScript inside a Jinja2 for loop, the JavaScript code will be executed for each iteration of the loop, creating multiple copies of the same code, which can lead to poor performance and slow load times. Additionally, the JavaScript code will be executed on the client side, it can be vulnerable to cross-site scripting (XSS) attacks, which can lead to security issues.
