this post was submitted on 11 Sep 2023
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Drive your web dev nuts and use [object Object] as user name
Hello Satan.
OK, I guess it's some sort of sql injection, but what does that actually does?
Not really - a SQL Injektion would be naming my user
user"; DROP TABLE USERS;--or something like that.My string is harmless but might scare web devs: How often do you see pseudocode like this?
Usually this should print
User @someone@example.com logged onas the variable content gets converted to a string. But if the variable is not a simple datatype like string, but a complex one, there might be errors. If you do the concatenation above with an object instead of a string, this would only printUser [object Object] logged on. Now when the web dev sees this line he's going to try to find the Bug, where this variable gets set to the wrong value/type, when in reality it's just your carefully crafted user name.Ah thanks.
Its the String representation of a Object.
If you open your Browser and hit F12, go to the console and type
console.log(""+{})you get an Object {} converted to a string by joining it with another empty string.Javascript