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{\rtf1\ansi\ansicpg1252\de<wbr />ffo\deflan<wbr />g\1033\def<wbr />langfe1033<wbr />{\fonttbl{<wbr />\fo\fswiss<wbr />\fprq2\fch<wbr />arseto BankGothic Md BT;}}{\colortbl;\red255\gr<wbr />eeno\blueo<wbr />;}\viewkin<wbr />d4\uc1\par<wbr />d\nowidctl<wbr />par\cf1\fo<wbr />\fs44 PooPoo\par}, when someone types this code in, it makes their font HUGE on my RTB.
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{\rtf1\ansi\ansicpg1252\deffo\deflang\1033\deflangfe1033{\fonttbl{\fo\fswiss\fprq2\fcharseto BankGothic Md BT;}}{\colortbl;\red255\greeno\blueo;}\viewkind4\uc1\pard\nowidctlpar\cf1\fo\fs44 PooPoo\par}, when someone types this code in, it makes their font HUGE on my RTB.

what kind of coding is this? and where can i learn more about it

Programming includes both the specifics of the language you’re using, like Visual Basic, .NET, Java and others, but also the best practices in user experience and interfaces and the management of projects, version control and development. Other programming topics are related to web and cloud development and system and hardware programming.