Variables and Data Types

In JavaScript, variables allow us to store and manipulate data. They are like containers that hold different values. Before we can use a variable, we need to declare it using the let or const keyword.

For example, let's declare some variables to store information about a basketball player:

1const playerName = 'Kobe Bryant';
2const points = 81;
3const team = 'Los Angeles Lakers';

In this example, we have declared three variables:

• playerName to store the name of the player, which is a string
• points to store the number of points scored by the player, which is a number
• team to store the name of the team the player belongs to, which is also a string

We can use the variables in our code to perform operations or display information. For example, we can log the values of these variables to the console using the console.log() function:

1console.log('Player Name:', playerName);
2console.log('Points:', points);
3console.log('Team:', team);

When we run this code, it will output the following:

1Player Name: Kobe Bryant
2Points: 81
3Team: Los Angeles Lakers

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const playerName = 'Kobe Bryant';

const points = 81;

const team = 'Los Angeles Lakers';

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console.log('Player Name:', playerName);

console.log('Points:', points);

console.log('Team:', team);