What are the different forms of CSS?
- External - In a separate file that is linked.
- Internal - At the top of the document in style tags.
- Inline - as an attribute on the elements themselves.
What is DOM?
- Document Object Model
- Represents the HTML page structure as nodes and objects. That way, programming
languages can connect to the page.
What is Bootstrap?
- A front-end, open source toolkit used to speed up development with HTML, CSS, and
JavaScript.
What is ASCII?
- American Standard Code Information Interchange
- A character encoding standard for electric communication.
What is ANSI?
- American National Standards Institute.
- Creates standards for the computer industry.
What is UTF-8?
- Unicode Transformation Format
- 8 means it uses 8-bit blocks to represent a character
What tags would you use to create tables?
- T - table tag
- Tr - is table row
- Th - is table head
- Td - is table data (column data)
What tag would you use to create list?
Ordered list - Ol - li Unordered list - Ul - li Description list - Dl - Dt - Dd
What tag would you use to create forms?
- Form tag creates a form
- Input specifies the different form inputs
- Button or input type=”button” can be used to submit.
What is AJAX
- Stands for Asynchronous JavaScript and XML.
- A new technique for creating better, faster, and more interactive web applications
using XML, HTML, CSS, and JavaScript.
What is OBP?
- Represents Object Based Programming.
- Basically, a superset of OOP.
What is DOM Manipulation?
- The altering of the DOM while the application is running.
- You can use this to add remove and change the way elements are laid out and how they
look on the page.
What kind of compiler does JavaScript use/have?
- JavaScript is interpreted not compiled
- The script is interpreted by other applications like web-browsers or Node Packet
Manager(npm).
What is Prototypical Inheritance?
- Each object has a private property which holds a link to another object called its
prototype. - When you construct an object the prototype chain links all the way up to Object, the
parent of everything in JavaScript to build the object.
Is JavaScript Pass-By-Value or Pass-By-Reference?
- For primitives JavaScript is pass by value.
- JavaScript also uses call by sharing for objects.
- Call by sharing is similar to pass by reference in that the function is able to modify the
same mutable object but unlike pass by reference isn’t able to assign directly over it.
What is Type Coercion?
- Type coercion is a property of JavaScript to attempt to compare values of different
types because it does not have strict types.
What are the variable scopes in JavaScript?
Global, local, and block scope
What is an anonymous function?
- A function that is created at runtime.
- The function operator can be used anywhere that it is valid to use an expression.
What is a self-invoking function?
- A self-invoking function is started automatically without being called; this is done right
after it is created. - This is used for avoiding naming conflict as well as for achieving encapsulation.
What is Hoisting?
- Hoisting in JavaScript is when the interpreter moves all variable and function
declarations to the top of the current scope.
What are the data types in JavaScript? (6)
- String
- Number
- Boolean
- Undefined
- Arrays
- Objects
- Symbols
- Function
What is Bubbling?
- Event bubbling is a form of event propagation.
- Event bubbling propagates events from children to parents.
What is Capturing?
- Capturing works the opposite of bubbling:
- When an event is fired, and parent and children elements have handlers registered
the parent’s handler fires first and then the event trickles down to the child.
Are JS objects mutable or immutable?
- In JavaScript, only objects and arrays are mutable.
- Primitives are immutable.
