📚
Forms & Events

Form Libraries

React Hook Form, Formik
💡 Form LIBRARIES, EK, "PROFESSIONAL, FORM, BUILDER, TOOL" jaisi, HAIN — MANUALLY, HAR, INPUT, KE, LIYE, STATE, VALIDATION, ERROR, HANDLING, CODE, LIKHNE, (RAW, HTML/CSS, SE, GHAR, BANANE) KE, BAJAYE, EK, TOOL, JO, YE, SAB, BOILERPLATE, AUTOMATICALLY, HANDLE, KARTA, hai.

Large, forms, MEIN, MANUAL, STATE, MANAGEMENT, (HAR, INPUT, KE, LIYE, useState) BOILERPLATE-HEAVY, aur, PERFORMANCE-COSTLY, (HAR, KEYSTROKE, PAR, RE-RENDER) HO, SAKTA, hai. React Hook Form, UNCONTROLLED, INPUTS, (refs) USE, KARTA, hai, PERFORMANCE, KE, LIYE — MINIMAL, RE-RENDERS.

Zod/Yup, JAISI, SCHEMA, VALIDATION, LIBRARIES, KO, React Hook Form, KE, SAATH, COMBINE, KIYA, JAATA, hai — VALIDATION, RULES, EK, JAGAH, DECLARATIVELY, DEFINE, HOTI, HAIN.

import { useForm } from "react-hook-form";

function SignupForm() {
  const { register, handleSubmit, formState: { errors } } = useForm();

  function onSubmit(data) {
    console.log(data);   // { email: "...", password: "..." }
  }

  return (
    <form onSubmit={handleSubmit(onSubmit)}>
      <input {...register("email", { required: "Email is required" })} />
      {errors.email && <span>{errors.email.message}</span>}
      <button type="submit">Sign Up</button>
    </form>
  );
}
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Form LIBRARIES, EK, "PROFESSIONAL, FORM, BUILDER, TOOL" jaisi, HAIN — MANUALLY, HAR, INPUT, KE, LIYE, STATE, VALIDATION, ERROR, HANDLING, CODE, LIKHNE, (RAW, HTML/CSS, SE, GHAR, BANANE) KE, BAJAYE, EK, TOOL, JO, YE, SAB, BOILERPLATE, AUTOMATICALLY, HANDLE, KARTA, hai.
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⚡ Quick Recap
  • Form libraries = BOILERPLATE (state, validation), AUTOMATE, KARTI HAIN
  • React Hook Form = uncontrolled inputs, USE karta hai — MINIMAL, re-renders
  • Zod/Yup = schema validation, EK, JAGAH, DECLARATIVELY, DEFINE
On this page (2 subtopics)

Formik, React Hook Form, SE, PEHLE, MOST, POPULAR, FORM, LIBRARY, THI — CONTROLLED, APPROACH, USE, KARTI, hai (React Hook Form, UNCONTROLLED, USE, KARTA, hai) — SLIGHTLY, MORE, RE-RENDERS, LEKIN, SIMPLER, MENTAL, MODEL, KUCH, DEVELOPERS, KE, LIYE.

  • Formik = controlled approach, thoda, MORE, re-renders
  • React Hook Form = uncontrolled, BETTER, performance — AB, ZYAADA, popular

@hookform/resolvers/zod, PACKAGE, SE, Zod, SCHEMA, KO, React Hook Form, KE, resolver, KE, ROOP, MEIN, USE, KIYA, JA, SAKTA, hai — VALIDATION, RULES, TypeScript, TYPES, KE, SAATH, EK, HI, JAGAH, DEFINE, HOTI, HAIN.

const schema = z.object({ email: z.string().email() });
const { register } = useForm({ resolver: zodResolver(schema) });