Javascript

JavaScript break and continue

by

JavaScript loops are used when a program needs to execute the same block of code repeatedly. The for, while, and do…while loops allow JavaScript to continue running code as long as their conditions are satisfied. However, there are situations where you do not want a loop to continue normally. For example, you may want to … Read more

JavaScript Loops: for, while, and do…while

by

When writing JavaScript programs, you will often need to perform the same task multiple times. For example, you may need to display the numbers from 1 to 10, process every item in an array, repeat an action until a condition becomes false, or create a countdown for a game. Writing the same code separately for … Read more

JavaScript True And False

by

When you work with JavaScript, you will often need to check whether something is true or false before your program performs an action. JavaScript has a useful feature that allows many different types of values to be evaluated as either truthy or falsy, even when those values are not actually Boolean values. For example, a … Read more

JavaScript If Statements

by

JavaScript conditional statements allow a program to make decisions based on conditions. Instead of executing the same code every time, JavaScript can check a condition and decide which block of code should run. For example, a website might need to determine whether a user is logged in, whether a student has passed an exam, whether … Read more

JavaScript Other Operators

by

JavaScript provides many operators for working with values, variables, objects, conditions, and program logic. You have already seen common operators such as arithmetic, assignment, comparison, and logical operators. JavaScript also provides several other useful operators that are important when writing modern applications. These include: These operators can make JavaScript code shorter, safer, and easier to … Read more

JavaScript Logical Operators

by

JavaScript logical operators are used to combine conditions, choose between alternatives, or reverse a condition. They are an important part of JavaScript because real-world programs often need to evaluate more than one condition at the same time. For example, a website may need to check whether: JavaScript provides three main logical operators: These operators can … Read more

JavaScript Comparison Operators

by

JavaScript comparison operators are used to compare two values and determine the relationship between them. They are an important part of JavaScript because programs constantly need to make decisions based on whether values are equal, different, greater, or smaller. For example, you might want to check whether a user’s age is 18 or above, whether … Read more

JavaScript Assignment Operators

by

Assignment operators in JavaScript are used to assign values to variables. The most basic assignment operator is the equal sign (=), but JavaScript also provides several compound assignment operators that make it easier to update the value of a variable. Assignment operators are used throughout JavaScript programs. Whether you are calculating a total price, increasing … Read more

JavaScript Arithmetic Operators

by

Arithmetic is one of the most basic operations performed in any programming language. JavaScript provides several arithmetic operators that allow you to perform mathematical calculations such as addition, subtraction, multiplication, division, finding remainders, calculating powers, and increasing or decreasing values. Arithmetic operators are used in almost every type of JavaScript application. You may use them … Read more

JavaScript Type Conversion

by

JavaScript works with different types of data, including strings, numbers, booleans, objects, undefined, null, BigInt, and Symbol. When a program works with values of different types, JavaScript sometimes needs to convert one type into another. For example, a value received from an HTML form is commonly represented as a string, even when the user enters … Read more