Notice: This page requires JavaScript to function properly.
Please enable JavaScript in your browser settings or update your browser.JavaScript Variables | JavaScript syntax
Introduction to JavaScript (staging)
course content

Course Content

Introduction to JavaScript (staging)

Introduction to JavaScript (staging)

1. Introduction
Writing our first codeOutput Using Variables 1/2Output Using Variables 2/2
2. JavaScript syntax
JavaScript SyntaxJavaScript VariablesJavaScript OperatorsIdentifiers in JavaScriptNaming IdentifiersReserved keywords in JavaScriptNaming Convention in JavaScript. Case StylesVariables Naming ConventionBoolean Naming ConventionConstant Naming ConventionFunction & Classes Naming ConventionMultiline StringsMultiline Strings. ConcatenatingCommenting in JavaScriptCommenting in JavaScript. Multi-line Comments
3. Data Types and Variables
What are Variables?What are Data-types?JavaScript and Type ConversionVar 1/3Var 2/3Var 3/3Let 1/2Let 2/2Constant 1/3Constant 2/3Constant 3/3Number 1/3Number 2/3Number 3/3Boolean 1/4Boolean 2/4Boolean 3/4Boolean 4/4Strings 1/5Strings 2/5Strings 3/5Strings 4/5Strings 5/5BigInt 1/3BigInt 2/3BigInt 3/3Symbols 1/3Symbols 2/3Symbols 3/3NullUndefinedNull vs Undefined

bookJavaScript Variables

In JavaScript, variables are used to store data. JavaScript variables are “named storage” for data. We can access the value of the variable by using variable name. We can use the variables to store different kinds of data like numbers, text, Boolean, etc.

JavaScript variables syntax:

A variable in JavaScript has a name, a value, and a memory address.

  • The name of the variable distinctively identifies the variable.
  • The value refers to data stored in the variable.
  • The memory address refers to the memory location of the variable.

              
12

            
const climate ="spring";
console.log(climate);
copy

Task

Create two variables named firstValue, and secondValue. Assign 50 to firstValue and 20 to secondValue and print both the variables using the console.log() function.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

Section 2. Chapter 2
toggle bottom row

bookJavaScript Variables

In JavaScript, variables are used to store data. JavaScript variables are “named storage” for data. We can access the value of the variable by using variable name. We can use the variables to store different kinds of data like numbers, text, Boolean, etc.

JavaScript variables syntax:

A variable in JavaScript has a name, a value, and a memory address.

  • The name of the variable distinctively identifies the variable.
  • The value refers to data stored in the variable.
  • The memory address refers to the memory location of the variable.

              
12

            
const climate ="spring";
console.log(climate);
copy

Task

Create two variables named firstValue, and secondValue. Assign 50 to firstValue and 20 to secondValue and print both the variables using the console.log() function.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

Section 2. Chapter 2
toggle bottom row

bookJavaScript Variables

In JavaScript, variables are used to store data. JavaScript variables are “named storage” for data. We can access the value of the variable by using variable name. We can use the variables to store different kinds of data like numbers, text, Boolean, etc.

JavaScript variables syntax:

A variable in JavaScript has a name, a value, and a memory address.

  • The name of the variable distinctively identifies the variable.
  • The value refers to data stored in the variable.
  • The memory address refers to the memory location of the variable.

              
12

            
const climate ="spring";
console.log(climate);
copy

Task

Create two variables named firstValue, and secondValue. Assign 50 to firstValue and 20 to secondValue and print both the variables using the console.log() function.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

In JavaScript, variables are used to store data. JavaScript variables are “named storage” for data. We can access the value of the variable by using variable name. We can use the variables to store different kinds of data like numbers, text, Boolean, etc.

JavaScript variables syntax:

A variable in JavaScript has a name, a value, and a memory address.

  • The name of the variable distinctively identifies the variable.
  • The value refers to data stored in the variable.
  • The memory address refers to the memory location of the variable.

              
12

            
const climate ="spring";
console.log(climate);
copy

Task

Create two variables named firstValue, and secondValue. Assign 50 to firstValue and 20 to secondValue and print both the variables using the console.log() function.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Section 2. Chapter 2
Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
some-alt