Understanding Data Storage and APIs 2

Explain the pros and cons of data collection.

• Data collection is always beneficial and has no drawbacks.

• Data collection can provide valuable insights but may also raise privacy concerns.

• Data collection is only useful for large companies.

• Data collection is unnecessary in modern technology.

Define browser storage.

• A method to store data on a remote server.

• A method to store data locally on a user's device through the web browser.

• A method to store data in the cloud.

• A method to store data in a database.

Explain the pros and cons of browser storage.

• Browser storage is always secure and unlimited.

• Browser storage is convenient for offline access but has limited storage capacity.

• Browser storage is only useful for storing images.

• Browser storage is not supported by any modern browsers.

Determine if your current browser supports local storage.

• Check the browser's settings for a local storage option.

• Use a JavaScript function to test for localStorage support.

• Assume all browsers support local storage.

• Local storage is not supported by any browsers.

Store data using localStorage and setItem.

• localStorage.setItem('key', 'value');

• localStorage.store('key', 'value');

• localStorage.save('key', 'value');

• localStorage.put('key', 'value');

Retrieve data using localStorage and getItem.

• localStorage.fetch('key');

• localStorage.getItem('key');

• localStorage.retrieve('key');

• localStorage.load('key');

Store objects and data structures in local storage using JSON.stringify.

• localStorage.setItem('key', JSON.stringify(object));

• localStorage.setItem('key', object);

• localStorage.setItem('key', JSON.parse(object));

• localStorage.setItem('key', object.toString());

Retrieve objects and data structures from local storage using JSON.parse.

• JSON.parse(localStorage.getItem('key'));

• JSON.stringify(localStorage.getItem('key'));

• localStorage.getItem('key').parse();

• localStorage.getItem('key').stringify();

Describe the use and purpose of JSON.

• JSON is used to style web pages.

• JSON is a format for structuring data, often used for data interchange.

• JSON is a programming language.

• JSON is a database management system.

Create a JavaScript object.

• var obj = "name: 'John', age: 30";

• var obj = {name: 'John', age: 30};

• var obj = ['name', 'John', 'age', 30];

• var obj = (name: 'John', age: 30);