JS syntax rules

 JavaScript syntax is a set of rules that dictate how JavaScript code should be written. Here are some key components of JavaScript syntax:

  1. Statements: JavaScript code is made up of statements, which are instructions that tell the computer what to do. Statements typically end with a semicolon (;).

Example: let x = 5;

  1. Variables: JavaScript uses variables to store data values. Variables are declared using the let, const, or var keywords.

Example: let name = "John";

  1. Operators: JavaScript uses operators to perform actions on data values. Some common operators include arithmetic operators (+, -, *, /), comparison operators (==, !=, <, >), and logical operators (&&, ||).

Example: let x = 10 + 5;

  1. Functions: JavaScript functions are blocks of code that can be called to perform a specific task. Functions can take arguments (values passed into the function) and return a value.

Example:

javascript
function addNumbers(a, b) { return a + b; } let sum = addNumbers(5, 10);
  1. Objects: JavaScript objects are collections of properties and methods. Properties are variables that hold values, and methods are functions that can be called on the object.

Example:

javascript
let person = { name: "John", age: 30, greet: function() { console.log("Hello, my name is " + this.name + " and I'm " + this.age + " years old."); } }; person.greet(); // outputs "Hello, my name is John and I'm 30 years old."

These are just a few examples of JavaScript syntax. There are many more components to JavaScript syntax, including control structures (if/else statements, loops), arrays, and more

Comments

Popular posts from this blog

Change Text Dynamically