74 lines
1.7 KiB
Markdown
74 lines
1.7 KiB
Markdown
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---
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id: 60f83e7bfc09900959f41e20
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title: 步驟 19
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challengeType: 0
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dashedName: step-19
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---
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# --description--
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一些 `type` 屬性值含有內置表單驗證。 例如， `type="email"` 要求該值是一個有效的電子郵件地址。
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給密碼 `input` 元素添加自定義驗證，新增 `minlength` 屬性設置其值爲 `8`。 這樣密碼少於 8 個字符的時候會阻止提交。
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# --hints--
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密碼 `input` 元素應該添加 `minlength` 屬性。
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```js
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assert.notEqual(document.querySelector('input[type="password"]')?.minLength, -1);
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```
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應該將 `minlength` 屬性設置爲 `8`。
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```js
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assert.equal(document.querySelector('input[type="password"]')?.minLength, 8);
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```
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# --seed--
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## --seed-contents--
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```html
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<!DOCTYPE html>
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<html>
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<head>
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<title>Registration Form</title>
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<link rel="stylesheet" href="styles.css" />
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</head>
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<body>
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<h1>Registration Form</h1>
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<p>Please fill out this form with the required information</p>
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<form action='https://register-demo.freecodecamp.org'>
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--fcc-editable-region--
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<fieldset>
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<label>Enter Your First Name: <input type="text" required /></label>
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<label>Enter Your Last Name: <input type="text" required /></label>
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<label>Enter Your Email: <input type="email" required /></label>
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<label>Create a New Password: <input type="password" required /></label>
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</fieldset>
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--fcc-editable-region--
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<fieldset></fieldset>
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<fieldset></fieldset>
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<input type="submit" value="Submit" />
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</form>
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</body>
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</html>
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```
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```css
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body {
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width: 100%;
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height: 100vh;
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margin: 0;
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background-color: #1b1b32;
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color: #f5f6f7;
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}
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label {
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display: block;
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margin: 0.5rem 0;
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}
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```
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