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| Section | Objectives |
|---|---|
| Topic 1: Forms | - HTML5 Forms and Validation
|
| Topic 2: Application Lifecycle Management | - Application Development Lifecycle
|
| Topic 3: JavaScript Coding | - JavaScript ES6 Development
|
| Topic 4: Graphics and Animation | - Canvas and SVG
|
| Topic 5: Layouts | - Responsive and Flexible Layouts
|
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NEW QUESTION # 62
Which value does the following JavaScript code fragment store in the variable num?
var num = localStorage.length;
Answer: B
Explanation:
The value stored in num is the number of key-value pairs currently stored in localStorage. The localStorage object implements the Web Storage Storage interface, which stores data as named string key/value entries for the current origin. Its length property is read-only and returns the number of data items stored in that Storage object, not the size of the stored data and not the remaining capacity. MDN's Storage reference explicitly defines length as returning the number of data items stored, and its example shows that after three items are added to localStorage, localStorage.length returns 3. Therefore, if the storage area contains five named entries, num receives 5; if it contains no entries, num receives 0. Option A is incorrect because available bytes are not exposed through length. Option B is unrelated to Web Storage. Option C is incorrect because browser storage quota or capacity is separate from the length property. References/topics: Web Storage API, localStorage, Storage.length, key-value storage, application state.
NEW QUESTION # 63
You need to draw a blue rectangle that meets these conditions:
* It is 200 by 200 pixels.
* It contains a white circle that is centered within the rectangle.
* The circle has a 50-pixel radius.
* The image should appear as follows: a blue square with a centered white circle.
Refer to the image on the left.
You need to ensure that the image scales without distortion when the page is resized. You must not be required to use JavaScript.
Complete the code by selecting the correct option from each drop-down list.
Note: You will receive partial credit for each correct selection.
Answer:
Explanation:
Explanation:
First blank: < svg width= " 200 " height= " 200 " >
Second blank: < rect width= " 200 " height= " 200 "
Third blank: < circle cx= " 100 " cy= " 100 " r= " 50 "
Fourth blank: < /svg >
The correct solution uses SVG because SVG graphics are vector-based and can scale without pixel distortion when the page or viewport changes. A < canvas > element would require script-based drawing logic, which violates the requirement that JavaScript must not be required. An < img > or < picture > element can display an image, but those options do not define the rectangle and circle directly in markup. The outer container must therefore be < svg width= " 200 " height= " 200 " > . The blue square is created with < rect width= " 200 " height= " 200 " fill= " blue " / > , which produces a rectangle matching the required 200-by-200 dimensions.
The centered white circle must use SVG circle geometry: cx= " 100 " and cy= " 100 " place the center at the midpoint of the 200-by-200 square, and r= " 50 " creates the required 50-pixel radius. The final closing tag must be < /svg > .
NEW QUESTION # 64
Move the appropriate attributes from the list on the left to the correct descriptions on the right. You may use each attribute once, more than once, or not at all.
Note: You will receive partial credit for each correct match.
Answer:
Explanation:
Explanation:
pattern # Provides a way to set a regular expression that the value must match placeholder # Provides a way to set default text that displays until focus is placed in an element required # Provides a way to set form elements as mandatory multiple # Provides a way to allow more than one file or email address in a single input The correct matches are based on standard HTML5 form validation and input-attribute behavior. The pattern attribute defines a regular expression that the input value must satisfy before the form can be submitted successfully. It is commonly used for structured values such as phone numbers, codes, postal formats, or custom identifiers. The placeholder attribute supplies short hint text inside an input field, helping the user understand the expected value before entering data. The required attribute makes a form control mandatory; if the field is empty, constraint validation prevents successful submission. The multiple attribute allows a single input to accept more than one value, specifically for controls such as input type= " file " and input type= " email " , where users may upload multiple files or enter multiple email addresses. The maxlength attribute is not used in these matches because it limits the maximum number of characters that can be entered, but none of the listed descriptions asks for character-length restriction. References/topics: HTML5 form attributes, constraint validation, pattern, placeholder, required, multiple, input validation.
NEW QUESTION # 65
A local photographer asks you to add filters as shown to the images in their photo gallery so that the images are not recognizable until authorized users log in.
Example of original and filtered images:
* Original image: full-color flower image
* Filtered image: blurred grayscale image
Analyze the images on the left.
Construct a CSS selector that will apply the appropriate filters to the images to meet the requirements.
Complete the markup by moving the appropriate HTML tags from the list on the left to the correct locations on the right. You may use each HTML tag once, more than once, or not at all.
Note: There is more than one correct markup. You will receive credit for any correct markup completion.
Answer:
Explanation:
Explanation:
First blank: img
Second blank: filter:
Third blank: grayscale(100%)
Fourth blank: blur(8px)
The correct CSS selector is img because the requirement applies the visual effect to gallery images. The correct property is filter:, not transform:, because CSS filters modify the rendered appearance of an element using image-processing effects such as blur, grayscale, opacity, brightness, contrast, and shadows. The filtered sample appears blurred and colorless, so the appropriate filter functions are grayscale(100%) and blur (8px). grayscale(100%) removes all color from the image, converting it to a black-and-white rendering. blur (8px) obscures visual details, making the image difficult to recognize until the protected or authorized state changes the styling. The filter keyword without a colon is not a valid CSS declaration in this context.
brightness(40%) and opacity(50%) could further obscure an image, but they are not required to reproduce the shown filtered result. The final declaration is therefore filter: grayscale(100%) blur(8px);.
NEW QUESTION # 66
You need to create the following form:
Complete the code by selecting the correct option from each drop-down list.
Answer:
Explanation:
Explanation:
First blank: < legend > Fundraising Campaign < /legend >
Second blank: < progress id= " donate " value= " 30 " max= " 100 " > < /progress > Third blank: list= " donateAmount "
NEW QUESTION # 67
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