Tutorial HTML: Input Number - Bikin Form Pendaftaran Lebih Mudah!

Summary

This video tutorial explains how to use the HTML input type 'number' in forms, ensuring that only numeric values can be entered. The speaker demonstrates how to set up input fields with attributes like 'min', 'max', and 'step' to control the input range and increment. Practical examples show how these attributes can be used for scenarios like age verification in registration forms. The video highlights the importance of these attributes in guiding user input and preventing invalid data, making the form more efficient and user-friendly.

Takeaways

• 😀 The video explains how to use the 'number' input type in HTML forms.
• 😀 The 'number' input type ensures that only numerical values are accepted, preventing non-numeric data from being submitted.
• 😀 A sample form is created to demonstrate how to use the 'number' input field with attributes like 'min', 'max', and 'step'.
• 😀 The 'min' attribute restricts the input to a minimum value (e.g., 5).
• 😀 The 'max' attribute limits the input to a maximum value (e.g., 20).
• 😀 The 'step' attribute allows for specifying allowed increments (e.g., steps of 2 between 5 and 20).
• 😀 The 'number' input field will show a dropdown with allowable increments and prevent the entry of non-numeric values.
• 😀 The form includes a submit button that validates the number input before submission.
• 😀 This method is useful for form fields where numerical data is required, such as age or quantity, with constraints.
• 😀 An example use case includes setting age restrictions in a registration form, such as a minimum age of 20 and a maximum age of 30.
• 😀 The video concludes by highlighting the usefulness of the 'number' input type for various types of data validation in forms.

Q & A

What is the main topic of this video script?

The video explains the usage of the `input` element with the `number` type in HTML, including validation, attributes, and examples of how it works.

What does the `input` type `number` do in HTML?

The `input` type `number` restricts users to entering only numeric values in the input field, ensuring that non-numeric data cannot be submitted.

How does the `min` attribute affect the `input` type `number`?

The `min` attribute sets a minimum value that can be entered. For example, if `min=5`, the user cannot input a number lower than 5.

What happens if a user tries to enter a non-numeric value in the `input` type `number`?

If a non-numeric value is entered, the form cannot be submitted, as the input validation rejects any input that is not a number.

What is the purpose of the `step` attribute in the `input` type `number`?

The `step` attribute defines the increment value allowed between numbers. For example, `step=2` means the input will accept values like 5, 7, 9, etc.

Can the user input any value in an `input` with type `number`?

No, the user can only input numeric values. The form will not accept non-numeric entries or values outside the defined `min` and `max` range.

What is the role of the `max` attribute in an `input` with type `number`?

The `max` attribute sets the maximum value that can be entered. For example, if `max=20`, the user cannot input a number greater than 20.

How does the `input` type `number` help in form validation?

It ensures that only valid numeric input is submitted, preventing users from entering text or other invalid data. It also enforces constraints such as `min`, `max`, and `step`.

What practical application is mentioned for the `input` type `number` in this script?

A practical application mentioned is using the `input` type `number` to collect age data in a registration form, where the age must be between 20 and 30 years.

Why is it important to use the `input` type `number` with validation in forms?

Using `input` type `number` with validation helps ensure that only correct, expected data is submitted, which is especially important for numerical fields like age, quantity, or prices.