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Styled form example
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‎Todo.md

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- Combine array helpers into one object? This is usefull to pass to other components
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- Require index for array fields
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- Add React.forwardRef to input elements
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- Pass FormEvent through form.handleSubmit's handler

‎example/package.json

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"react-router-dom": "^5.2.0",
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"react-scripts": "link:../node_modules/react-scripts",
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"styled-components": "^5.2.1",
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"typed-object-validator": "^1.0.1",
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"typed-react-form": "link:..",
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"typescript": "link:../node_modules/typescript",
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"yup": "^0.32.8"

‎example/src/StyledForm.tsx

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import React from "react";
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import styled from "styled-components";
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import { FormError, FormInput, StyledFix, useForm } from "typed-react-form";
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import tv, { SchemaType } from "typed-object-validator";
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// https://github.com/styled-components/styled-components/issues/1349#issuecomment-375293558
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const Container = styled.div`
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height: 100vh;
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/* background: #0001; */
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display: flex;
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justify-content: center;
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align-items: center;
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`;
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const Title = styled.div`
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padding: 1.5rem;
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border-bottom: 1px solid #0002;
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font-size: 1.3rem;
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font-weight: bold;
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`;
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const FormContainer = styled.div`
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background: white;
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border-radius: 0.25em;
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box-shadow: 3px 3px 15px 3px #0002;
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min-width: 300px;
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`;
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const Form = styled.form`
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padding: 1.5em;
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display: grid;
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gap: 0.8em;
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align-items: center;
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grid-template-columns: 100px 1fr;
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`;
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const StyledButton = styled.button`
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cursor: pointer;
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appearance: none;
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padding: 0.5em 1em;
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background: #e22;
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color: white;
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font-weight: bold;
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border: none;
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border-radius: 0.3em;
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font-size: inherit;
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font-family: inherit;
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transition: 100ms;
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&:hover {
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transition: 100ms;
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background: #e22d;
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}
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`;
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// Must specify type explicitly
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const StyledInput: StyledFix<typeof FormInput> = styled(FormInput)`
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border: 2px solid #0002;
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border-radius: 0.3em;
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padding: 0.5em;
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outline: none;
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&.typed-form-error {
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border-color: red;
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}
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&.typed-form-dirty {
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border-color: #0005;
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}
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`;
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// You can also just use typeof without StyledFix, but this does not support additional styled properties
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const StyledError: typeof FormError = styled(FormError)`
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font-weight: bold;
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color: red;
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margin: 0.1em 0;
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grid-column: 2;
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`;
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const FormDataSchema = tv.object({
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name: tv.string().min(1),
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email: tv.email("Invalid email").min(1)
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});
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type FormData = SchemaType<typeof FormDataSchema>;
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export function StyledForm() {
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const form = useForm<FormData>({ name: "", email: "" }, (values) => FormDataSchema.validate(values) ?? ({} as any));
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function submit() {
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console.log(form.values);
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alert(JSON.stringify(form.values, null, 2));
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}
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return (
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<Container>
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<FormContainer>
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<Title>
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Form using <a href="https://styled-components.com/">styled-components</a>
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</Title>
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<Form onSubmit={form.handleSubmit(submit)}>
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<label>Name</label>
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<StyledInput form={form} name="name" />
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<StyledError form={form} name="name" />
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<label>Email</label>
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<StyledInput form={form} name="email" />
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<StyledError form={form} name="email" />
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<StyledButton type="submit" style={{ gridColumn: "span 2" }}>
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Submit
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</StyledButton>
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</Form>
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</FormContainer>
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</Container>
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);
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}

‎example/src/StyledProblem.tsx

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‎example/src/index.tsx

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import OneOfObjectForm from "./OneOfObjectForm";
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import OneOfObjectArrayForm from "./OneOfObjectArrayForm";
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import { BrowserRouter, Route, Switch } from "react-router-dom";
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import { StyledForm } from "./StyledForm";
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function Router() {
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return (
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<BrowserRouter>
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<Switch>
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<Route path="/object-types" component={OneOfObjectForm} />
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<Route path="/object-types-array" component={OneOfObjectArrayForm} />
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<Route path="/styled-form" component={StyledForm} />
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<Route path="/" component={App} />
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</Switch>
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</BrowserRouter>

‎example/yarn.lock

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resolved "https://registry.yarnpkg.com/type/-/type-2.1.0.tgz#9bdc22c648cf8cf86dd23d32336a41cfb6475e3f"
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integrity sha512-G9absDWvhAWCV2gmF1zKud3OyC61nZDwWvBL2DApaVFogI07CprggiQAOOjvp2NRjYWFzPyu7vwtDrQFq8jeSA==
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typed-object-validator@^1.0.1:
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version "1.0.1"
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resolved "https://registry.yarnpkg.com/typed-object-validator/-/typed-object-validator-1.0.1.tgz#524184eec5da5a37a90ea3011877b05189e9faee"
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integrity sha512-6h0PJeLVW7J9O65HqgotnDxatlwY652+kuA+yU3CPtJTlP+TJAmLHQ4NrqXwSqnwvNTfd54OuUCTrV6if7g+Mw==
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"typed-react-form@link:..":
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version "0.0.0"
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uid ""

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