JavaScript Online Assessment Test

Use it to run specific builtin objects for mathematical constants and functions

Use it to generate random numbers between 0 and 1 including both

Use it to get the values of variables, objects, conditions, and expressions in terms of true or false

Use it to compare two variables with and without taking the data types into consideration

Use it to execute specific code sections as per conditions being satisfied

Use it to evaluate expressions and identify matching values to a case

Use it and execute statements associated with the case

Use it to repeatedly execute the program till the condition becomes false

Use it to execute the code within the for loop once

Use it to execute the code within the loop a specific number of times

Use it to create a loop that executes a specific statement as long as the condition remains true

Use it to exit from a switch statement

Use it to allow Javascript objects to define or customize their iteration behavior

Use for creation of a collection of unique values

Use to iterate over an array and to call function on each and every element of array

Use it to return the type of a variable when called

Use it to convert one data type to another

Operands as a set of 32-bit binary digits (zeros and ones) and perform actions

Patterns used to match character combinations in Strings

This happens when a script on a web page contains an error or fails to execute correctly

Is a policy that manages the availability of variables

The default behavior of moving all the declarations at the top of the scope before code execution

It prevents or throws errors when relatively “unsafe” actions are taken

Use it to eliminate the confusion between class attributes and parameters with the same name

Use it to write functions in Javascript in a concise way

Used as templates to create new objects

Used for serializing and transmitting structured data over a network connection in web applications

Used inside the code to force stop the execution of the code at a breaking point

Provides a set of standards that outline how code should be written and organized

Simple association between name and value

Used to store various keyed collections and more complex entities

It is a getter and setter for the fullName property

This is used to create and initialize an object

Is used to provide an inheritance

Is a protocol that allows JavaScript objects to define or customize their iteration behavior

Use it for displaying information on the computer's screen

It is used to control the program flow in JavaScript

It's the set of rules that define a correctly structured JavaScript program

It is used to add warnings, suggestions, and information about the code

Used to store data values that can be changed later on

This allows you to declare variables that are limited to the scope of a block statement

It is a declaration that creates a read-only reference to a value

It is used to compare values, perform arithmetic operations, etc

Used to take numerical values as their operands and return a single numerical value

It is used to assigning a value to a variable

It allows you to define a block of code, give it a name and then execute it as many times as you want

It is a collection of properties, and a property is an association between a name (or key) and a value

It is to provide a dynamic interface to a webpage

A primitive data type in JavaScript that lets you work with a series of characters

It is used to search for a match in between regular expressions and a given string object

It is used to represent and manipulate numbers

It can be used to convert variables into numbers

It is used to store multiple values in a single variable

These are actions that can be performed on objects

This sorts the elements of an array in place and returns the sorted array

It is a declaration that creates a read-only reference to a value

It is a single moment in time in a platform-independent format

It returns the day of the month (from 1 to 31) for the specified date

It is used to set the day as a number (1-31)

This allows the creation of collections of unique values

It holds key-value pairs and remembers the original insertion order of the keys

It is a set of statements that performs a task or calculates a value

These are the names that are defined in the function definition

It is used to execute the function code

It is a request made by a program or script that performs a predetermined function

With this, you can write a method once, and then inherit it from another object

These are created every time a function is created, at the function creation time

These serve as templates or blueprints that help create new objects

It enables you to inherit all the methods and properties of another class

These are useful for caches, fixed-configuration, or any other data you don't need to be replicated across various instances

It is used to simplify the syntax necessary to consume promise-based APIs

These are a way to handle something after something else has been completed

These are used to handle asynchronous operations in JavaScript

These make it easier to write promises

Browser Object Model allows JavaScript to “interact with” the browser

It holds the information of a browser screen

This holds information about the current URL

It exposes useful methods and properties that let you navigate back and forth through the user's history

It is used to detect the browser and gather information about it

It is an alert box that ensures that the information has reached the user

It is used to measure time intervals in JavaScript

Works as the store for information between the client-side and server-side in a web browser

It is the order in which a computer executes statements in a script

It helps in handling both hardware and software errors in a sophisticated manner and helps execution to resume when interrupted

They are used to show the data needed and created by business processes in JavaScript

It is primarily used for non-blocking, event-driven servers, due to its single-threaded nature

It is a way of writing code that allows you to create different objects from a common object