<prompt> Hlalosa hore na validator ke eng lenaneong.Ha ho tlhahiso  <response>: Instruction in English: Describe what is a validator in programming. . Response in English: A validator is a tool or a function in programming that checks the validity or correctness of data entered by a user to conform to certain predefined rules, formats or standards. It evaluates input data against a set of parameters, checks for errors or discrepancies, and returns whether or not the data is valid. Validators are commonly used in forms, web applications, databases, and APIs to ensure that user-provided or generated data is accurate, consistent, and secure before processing or using it in the software application. Validators help prevent errors, reduce potential security risks, maintain data integrity, and improve overall user experience. . Response in Sesotho: Setsi sa netefatso ke sesebelisoa kapa mosebetsi o hlophisitsoeng o lekola bonnete kapa ho nepahala ha data e kentsoeng ke mosebelisi ho latela melao, lifomate kapa maemo a itseng. E lekola lintlha tse kentsoeng khahlanong le sete ea li-parameter, e hlahloba liphoso kapa ho se lumellane, me e khutlisetsa hore na data e nepahetse kapa che. Li-validators li atisa ho sebelisoa ka liforomo, litsebetsong tsa marang-rang, li-database, le li-API ho etsa bonnete ba hore data e fanoeng ke basebelisi kapa e hlahisoang e nepahetse, e tsitsitse ebile e sireletsehile pele e sebetsa kapa e sebelisoa tsebetsong ea software. Li-Validators li thusa ho thibela liphoso, ho fokotsa likotsi tse ka bang teng tsa tsireletso, ho boloka botšepehi ba data, le ho ntlafatsa boiphihlelo ba basebelisi ka kakaretso. 