See also: Why is using 'eval' a bad practice? to understand the critical security risks created by using eval or exec on untrusted input (i.e.: anything that is even partially under the user's control, rather …

After reading the Bash man pages and with respect to this post, I am still having trouble understanding what exactly the eval command does and which would be its typical uses. For example, if we do...

eval is a bash-builtin and is documented in the man page of bash. So just type "man bash" and search for the appropriate section for eval. This applies for other bash-builtins, too.

Dec 1, 2009 · This question cannot be language-agnostic because of the special role of block eval in Perl as the primary exception handling mechanism. Therefore, I submit to you that there cannot be …

The eval function is a powerful and easy way to dynamically generate code, so what are the caveats?

eval makes it possible to execute (or evaluate) a string of javascript code. Thus, it is applicable when you want someone to execute a string of javascript code.

Jan 7, 2015 · eval Evaluates a string of JavaScript code without reference to a particular object. If you construct an arithmetic expression as a string, you can use eval to evaluate it at a later time. For …

You can execute eval with a particular context, where this === theContext you pass in ({ neek: true } for example). The trick is you have to .call another function which then calls eval, you cannot .call eval …

Dec 3, 2009 · My Spider Sense warns me that using eval() to parse incoming JSON is a bad idea. I'm just wondering if JSON.parse() - which I assume is a part of JavaScript and not a browser-specific …

May 22, 2017 · Everyone says eval is EVIL (as in bad) and slow (as I have found), but I can't really do anything else - the server simply pulls the data out the database and pushes to the browser.