Podcast
Questions and Answers
Which HTML element is used to create a dropdown list in a form?
Which HTML element is used to create a dropdown list in a form?
- `<option>`
- `<input type="dropdown">`
- `<select>` (correct)
- `<textarea>`
What is the primary role of server-side processing in handling web forms?
What is the primary role of server-side processing in handling web forms?
- To display the form elements on the web page.
- To process the form data, such as updating a database or sending an email. (correct)
- To validate user input in the browser before submission.
- To style the form using CSS.
Which of the following HTML elements is a container tag?
Which of the following HTML elements is a container tag?
- `<input>`
- `<form>` (correct)
- `<meta>`
- `<br>`
Which form element attribute specifies the server-side script that will process the form data?
Which form element attribute specifies the server-side script that will process the form data?
Consider a complex form requiring both client-side validation and secure data processing. Which of the following approaches represents the most robust strategy, considering both user experience and security?
Consider a complex form requiring both client-side validation and secure data processing. Which of the following approaches represents the most robust strategy, considering both user experience and security?
What is the primary difference between the get and post methods in an HTML form?
What is the primary difference between the get and post methods in an HTML form?
A web developer wants to create a dynamic survey form where new question types (e.g., Likert scales, ranking questions) can be added without modifying the core HTML structure. Furthermore, they aim to minimize page reloads and efficiently manage large datasets. Which architectural pattern and technology stack would be most suitable for this scenario?
A web developer wants to create a dynamic survey form where new question types (e.g., Likert scales, ranking questions) can be added without modifying the core HTML structure. Furthermore, they aim to minimize page reloads and efficiently manage large datasets. Which architectural pattern and technology stack would be most suitable for this scenario?
Which HTML element configures a selectable scrolling text box for multi-line text input?
Which HTML element configures a selectable scrolling text box for multi-line text input?
To create a group of radio buttons allowing the user to select only one option, what attribute must be the same for all buttons in the group?
To create a group of radio buttons allowing the user to select only one option, what attribute must be the same for all buttons in the group?
Consider a scenario where you need users to select multiple preferred programming languages from a list. Which HTML element, combined with appropriate tags, would be the MOST semantically correct and user-friendly approach?
Consider a scenario where you need users to select multiple preferred programming languages from a list. Which HTML element, combined with appropriate tags, would be the MOST semantically correct and user-friendly approach?
Which HTML element is specifically designed to configure options within a select list?
Which HTML element is specifically designed to configure options within a select list?
What attribute of the <option> element specifies the data sent to the server when the form is submitted?
What attribute of the <option> element specifies the data sent to the server when the form is submitted?
When a submit button is clicked within an HTML form, what primary action does it trigger?
When a submit button is clicked within an HTML form, what primary action does it trigger?
Which input type is designed to automatically revert form fields to their original settings?
Which input type is designed to automatically revert form fields to their original settings?
What is the primary characteristic of a hidden input field?
What is the primary characteristic of a hidden input field?
Which input type is appropriate for collecting user passwords?
Which input type is appropriate for collecting user passwords?
Which attribute is essential when configuring an <input> element to allow users to upload files?
Which attribute is essential when configuring an <input> element to allow users to upload files?
For a form that includes file uploads to function correctly, what attribute-value pair must be included in the enclosing <form> tag, in addition to method="post"?
For a form that includes file uploads to function correctly, what attribute-value pair must be included in the enclosing <form> tag, in addition to method="post"?
Which attribute is used to provide a hint or example of the expected input within a text or password input field, which disappears when the user begins typing?
Which attribute is used to provide a hint or example of the expected input within a text or password input field, which disappears when the user begins typing?
Consider a scenario where you need to capture both client-side and server-side data without displaying it directly on the webpage. Which <input> element type would be the MOST suitable choice for transmitting this data?
Consider a scenario where you need to capture both client-side and server-side data without displaying it directly on the webpage. Which <input> element type would be the MOST suitable choice for transmitting this data?
Web page forms are HTML elements, that do not contain form controls.
Web page forms are HTML elements, that do not contain form controls.
Server-side processing is responsible for working with form data, which can include sending emails, updating databases, or other server-related tasks.
Server-side processing is responsible for working with form data, which can include sending emails, updating databases, or other server-related tasks.
The <textarea> tag is a stand-alone tag used to configure a scrolling text box on a web page.
The <textarea> tag is a stand-alone tag used to configure a scrolling text box on a web page.
The <select> element is a container tag used to create drop-down lists, and the <option> element, also a container tag, defines the choices within the drop-down list.
The <select> element is a container tag used to create drop-down lists, and the <option> element, also a container tag, defines the choices within the drop-down list.
The HTML <form> element can only encapsulate input elements of the type text, and any other type of element must be handled separately outside the form's scope via Javascript.
The HTML <form> element can only encapsulate input elements of the type text, and any other type of element must be handled separately outside the form's scope via Javascript.
The action attribute in an HTML form specifies the client-side script that will process the form data.
The action attribute in an HTML form specifies the client-side script that will process the form data.
The default method attribute for a form is post, which passes form data in the HTTP Entity Body.
The default method attribute for a form is post, which passes form data in the HTTP Entity Body.
An HTML form can have multiple submit buttons, each with a unique name and value attribute, allowing the server to determine which button was clicked.
An HTML form can have multiple submit buttons, each with a unique name and value attribute, allowing the server to determine which button was clicked.
The placeholder attribute, which is a common attribute of the input element text box, prevents users from entering any text into the input field.
The placeholder attribute, which is a common attribute of the input element text box, prevents users from entering any text into the input field.
If a developer sets the autocomplete attribute to 'off' while the required attribute is active, it is guaranteed that the browser autocomplete feature on an <input> field will be disabled, and the user must manually complete the form field.
If a developer sets the autocomplete attribute to 'off' while the required attribute is active, it is guaranteed that the browser autocomplete feature on an <input> field will be disabled, and the user must manually complete the form field.
The <option> element's value attribute specifies the text displayed in the select list.
The <option> element's value attribute specifies the text displayed in the select list.
A submit button triggers the action method on the <html> tag.
A submit button triggers the action method on the <html> tag.
The reset button clears the form fields and cannot be customized.
The reset button clears the form fields and cannot be customized.
Hidden form fields are only accessible via server-side scripting.
Hidden form fields are only accessible via server-side scripting.
For a file upload control to function, the form must be configured with method="post" and enctype="multipart/form-data".
For a file upload control to function, the form must be configured with method="post" and enctype="multipart/form-data".
The capture attribute is exclusive to the <input type='file'> element.
The capture attribute is exclusive to the <input type='file'> element.
The size attribute in a password input box restricts the number of characters a user can enter.
The size attribute in a password input box restricts the number of characters a user can enter.
The placeholder attribute in an <input> tag ensures the user enters a value when the form is submitted.
The placeholder attribute in an <input> tag ensures the user enters a value when the form is submitted.
Omitting the type attribute from an <input> element defaults its behavior to that of a text input field.
Omitting the type attribute from an <input> element defaults its behavior to that of a text input field.
An <input type='file'> element, when configured with the multiple attribute, allows selection of multiple files, but each file is transmitted as a separate request to the server.
An <input type='file'> element, when configured with the multiple attribute, allows selection of multiple files, but each file is transmitted as a separate request to the server.
Flashcards
Form 'action' attribute
Form 'action' attribute
Specifies the server-side program/script that will process form data.
Form 'method' attribute
Form 'method' attribute
Passes form data in the URL (default) or HTTP Entity Body (more secure).
Input element (text box)
Input element (text box)
Accepts text information; attributes include type, name, id, size, maxlength, value, required, placeholder.
Input element (check box)
Input element (check box)
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Textarea element
Textarea element
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Web Form Uses
Web Form Uses
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Form Components
Form Components
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<form> tag
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<input> tag
<input> tag
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<textarea> tag
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Option Element
Option Element
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Input Element: Submit Button
Input Element: Submit Button
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Input Element: Reset Button
Input Element: Reset Button
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Input Element: Hidden Field
Input Element: Hidden Field
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Input Element: File Upload
Input Element: File Upload
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Input Element: Password Box
Input Element: Password Box
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Value Attribute
Value Attribute
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Selected Attribute
Selected Attribute
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Enctype Attribute
Enctype Attribute
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Form 'name' attribute
Form 'name' attribute
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Form 'id' attribute
Form 'id' attribute
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Input element (radio button)
Input element (radio button)
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Select element
Select element
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Textarea 'rows' attribute
Textarea 'rows' attribute
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Web Page Form
Web Page Form
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Server-Side Processing
Server-Side Processing
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Value attribute (option)
Value attribute (option)
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Submit button function
Submit button function
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type="submit"
type="submit"
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Reset button function
Reset button function
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type="reset"
type="reset"
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Hidden field purpose
Hidden field purpose
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File upload control
File upload control
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Password box purpose
Password box purpose
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Study Notes
- Forms are used to accept information and provide interactivity on the web.
- Common forms are: search forms, order forms, newsletter sign-up forms, survey forms, and "add to cart" forms.
- The two components of using forms are the web page form and the server-side processing.
- An HTML element that contains and organizes various form controls that accept information from website visitors is the web page form.
- Server-side processing works with the form data which may involve sending an email, writing to a text file, updating databases or performing other types of processing on a server.
HTML Form Tags
- The
<form>tag contains the form elements on a web page and is a container tag. - The
<input>tag configures form elements (text boxes, radio buttons, check boxes, and buttons); it's a stand-alone tag. - The
<textarea>tag configures a scrolling text box and uses a container tag. - The
<select>tag configures a drop-down list and uses a container tag. - The
<option>tag configures an option in the<select>box and uses a container tag.
Form Element <form>
- A container tag.
- action: specifies the server-side program or script that will process the form data.
- method: includes "get" which is the default value with form data passed through the URL, and "post" which is more secure and has form data passed in the HTTP Entity Body.
- name: identifies the form.
- id: Identifies the form.
Input Element Text Box <input>
- Accepts text information.
- Common attributes: type="text", name, id, size, maxlength, value, required, and placeholder.
Input Element Check Box <input>
- Allows a user to select one or more predetermined items.
- Common attributes: type="checkbox", name, id, checked, and value.
Input Element Radio Button <input>
- Allows the user to select one item from a group of predetermined items.
- Each radio button in a group is given the same name and a unique value.
- Common Attributes: type="radio", name, id, checked, and value.
Textarea Element <textarea>
- Configures a scrolling text box.
- Common attributes: name, id, cols, rows, and required.
Select Element <select>
- Configures a select list (along with
<option>tags). - Also referred to as: Select Box, Drop-Down List, Drop-Down Box, or Option Box.
- Allows the user to select one or more items from predetermined choices.
- Common attributes are: name, id, size, and multiple.
Option Element <option>
- Configures the available options in a Select List.
- Attributes: value and selected.
Input Element Submit Button <input>
- Submits the form information.
- It triggers the action method on the
<form>tag when clicked. - Sends the form data (name=value pair for each form element) to the web server.
- Attributes: type= "submit", name, id, and value.
Input Element Reset Button <input>
- Resets the form fields to their initial values.
- Attributes: type= "reset", name, id, and value.
Input Element Hidden Field <input>
- This form control is not displayed on the Web page,
- They can be accessed by both client-side and server-side scripting.
- Common attributes: type="hidden", name, id, and value.
Input Element File Upload Control <input>
- Accepts a file upload when the form is submitted.
- Requires the form element to be configured with method="post", enctype="multipart/form-data", and the action attribute.
- Attributes: type="file", name, id, accepts, capture, and multiple.
Input Element Password Box <input>
- Accepts text information that needs to be hidden as it is entered.
- Common attributes: type="password", name, id, size, maxlength, value, required, and placeholder.
Label Element <label>
- Associates a text label with a form control.
- Two possible formats:
<label>Email: <input type="text" name="CustEmail" id ="CustEmail"></label><label for="email">Email: </label> <input type="text" name="CustEmail" id= "email">
Fieldset & Legend Elements
- Fieldset Element
<fieldset>: A container tag which creates a visual group of form controls on a web page. - Legend Element
<legend>: A container tag which creates a text label within the fieldset.
CSS Styling
- CSS can style forms using properties like background colours, font families, widths, padding, float, clear, display, text-align, and margins.
- Grid Layout can be used to style a form with display, grid-template-rows, grid-template-columns, grid-gap, background-color, font-family, width and padding properties.
Server-Side Processing
- The browser requests web pages and related files from a web server.
- The web server locates the requested files and sends them to the browser.
- The web browser renders the returned files and displays the requested web pages.
Server-Side Scripting
- A technology in which a server-side script is embedded within a web page saved with a file extension such as .php (PHP), .jsp (Sun JavaServer Pages), or .aspx (ASP.Net).
- Scripts are run either by the web server itself or by an extension module to the web server.
HTML5 Form Controls
- Email Text Box
<input>: Accepts text information in e-mail address format. Common attributes: type="email", name, id, size, maxlength, value, placeholder, and required. - URL Text Box
<input>: Accepts text information in URL format. Common attributes: type="url", name, id, size, maxlength, value,placeholder, and required. - Telephone Number Text Box
<input>: Accepts text information in telephone number format. Common attributes: type="tel", name, id, size, maxlength, value, placeholder, and required. - Search Text Box
<input>: Accepts search terms and common attributes: type="search", name, id, size, maxlength, value, placeholder, and required. - Datalist Control: `` ```html <input type="text" name="color" id="color" list="colors"> ```
- Slider Control
<input>: `` ```html
Low <input type="range" name="myChoice" id="myChoice"> High - Spinner Control
<input>: `` ```html <input type="number" name="myChoice" id="myChoice" min="1" max="10"> - Date and Time Control
<input>: ```html <input type="date" name="myDate" id="myDate"> - Color-Well Control: `` ```html
<input type="color" name="myColor" id="myColor">
Flexbox Layout
- Single column forms are achieved through flexbox layout styling using flex direction:column, flex-wrap: nowrap; max-width: 25em; etc.
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Description
Forms are used to accept information and provide interactivity on the web. An HTML form contains and organizes form elements that accept information from website visitors. Server-side processing works with the form data.
