Introduction to Basic Operators in Javascript

Operators are fundamental elements in any programming language, including Javascript. These allow us to perform different operations in our code, such as adding, subtracting, multiplying and comparing values. In this article, we will explore the basic operators in Javascript and how to use them correctly.

What are basic operators?

Basic operators are symbols or reserved words that perform a specific operation in our code. In Javascript, basic operators are divided into different categories:

• Arithmetic operators: They are used to perform mathematical operations such as addition (+), subtraction (-), multiplication (*), division (/) and modulo (%).
• Assignment operators: They are used to assign a value to a variable. The basic assignment operator is the equals sign (=), but there are also compound assignment operators such as +=, -=, *=, and /=.
• Comparison operators: are used to compare two values and return a boolean value (true or false). Some comparison operators include == (equal), != (not equal), > (greater than), < (less than), >= (greater than or equal to) and <= (menor o igual que).
• Logical operators: They are used to combine or invert boolean values. The main logical operators in Javascript are && (and), || (or) and ! (No).

How to use basic operators in Javascript?

To use basic operators in Javascript, you simply need to know their syntax and apply them correctly in your code. Let's look at some examples:

// Arithmetic operators var x = 5; var y = 3; console.log(x + y); // 8 console.log(x - y); // 2 console.log(x * y); // 15 console.log(x / y); // 1.6666666666666667 console.log(x % y); // 2 // Assignment operators var a = 10; a += 5; // a = a + 5 console.log(a); // 15 // Comparison operators var b = 7; var c = 3; console.log(b == c); // false console.log(b != c); // true console.log(b > c); // true console.log(b <c); // false // Logical operators var p = true; var q = false; console.log(p && q); // false console.log(p || q); // true console.log(!p); // false

Conclusions

In this article, we have learned about the basic operators in Javascript and how to use them in our code. Arithmetic operators allow us to perform mathematical calculations, assignment operators allow us to assign values to variables, comparison operators allow us to compare values, and logical operators allow us to combine or invert Boolean values.

It is essential to understand and master the basic operators in Javascript, as they are essential tools for developing web applications. Explore more about these operators and practice with examples to strengthen your programming skills.

Frequently asked questions

What are the basic operators in Javascript?

Basic operators in Javascript include arithmetic operators (+, -, *, /, %), assignment operators (=, +=, -=, *=, /=), comparison operators (==, ! =, >, <, >=, <=) y los operadores lógicos (&&, ||, !).

What are arithmetic operators used for in Javascript?

Arithmetic operators in Javascript are used to perform basic mathematical operations such as addition, subtraction, multiplication, division, and module.

How are comparison operators used in Javascript?

Comparison operators in Javascript are used to compare two values and return a boolean value (true or false) based on the comparison performed.

What are the main logical operators in Javascript?

The main logical operators in Javascript are && (and), || (or) and ! (No). These operators are used to combine or invert boolean values.

I hope you found this article helpful in understanding basic operators in Javascript. Remember to practice with examples and explore more about this topic to improve your programming skills.