How to Instruct a Computer

Let's write some code to instruct the computer to perform simple calculations and output the result :)

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const x = 1;
const y = 2;
const z = 3;

console.log((x + z) * y);

const is the keyword used to define a constant value that does not change throughout the program's execution. const x = 1 means assigning the value 1 to the constant x.

Here, a keyword is a word with special meaning that JavaScript has already pre-defined and cannot be used by the programmer for naming variables or functions. The = operator is used to assign a value to a constant.

In programming, the = operator is used to assign a value rather than indicating equality as it does in mathematics.

Similarly, we assign 2 to the constant y and 3 to the constant z.

In (x + z) * y, the asterisk (*) signifies multiplication. By the way, division in programming languages is represented by the slash (/).

So, you add x and z which results in (x + z) and then multiply the result by y. The computed value, i.e., 4 * 2 = 8, is passed to console.log.

console.log is a function that prints the value passed within its parentheses (()). Without console.log, the result of (x + z) * y would not be displayed on the screen.

Pretty simple, right?

This way, we have instructed the computer to perform simple calculations and output tasks using JavaScript!