QUARTER3 MOD 1 TO 5

WHAT IS KEYWORD?

• reserved words that are part of the syntax in the programming language.

• JavaScript variable is simply a name of storage location

• a combination of values, variables, and operators, which computes to a value

• All JavaScript variables must be identified with unique names

WHAT IS IDENTIFIERS

• In any form of programming languages, variables are used to store data values

• All JavaScript variables must be identified with unique names

• used to identify actions to be performed. It tells the browser to create variables

• An expression is a combination of values, variables, and operators, which computes to a value

WHO CREATED JAVASCRIPT?

• Tim Berners Lee

• Håkon Wium Lie

• Guido van Rossum

• Brendan Eich

why did he created javascript?

• to support linking among online resources

• to validate input

• He wanted to build a programming language that could resolve the issues the programmers were facing at that time

• to provide style sheets for the web

These variables are declared outside any function and can be accessed anywhere in JavaScript.

• Function Scope

• Local Scope

• Global Scope

• Block Scope

A variable declared with __________ has the global scope.

• CONS

• LET

• VAR

• SCOPE

USES BRACKET/BLOCK

• BLOCK

  SCOPE

• FUNCTION

  SCOPE

• GLOBAL

  SCOPE

• LOCAL

  SCOPE

JavaScript const variables must be assigned a __________ when they are declared.

• VALUE

• ELEMENT

• NAME

• PROPERTY

Redeclaring or reassigning an existing const variable, in the same scope, or in the same block, is not allowed

• TRUE

• FALSE

Redeclaring or reassigning an existing var or let variable to const, in the same scope, or in the same block, is

• NOT ALLOWED

• ALLOWED