JavaScript for beginners To Web Development

Learn how to declare variables in JavaScript, assign string and numeric values, and display results with document.write, using proper naming and semicolon syntax.

Declare and use variables in JavaScript to perform arithmetic such as addition, multiplication, and division. Assign results to a variable and display outcomes in the document.

Learn the basics of prompts and variable assignment in JavaScript, using a simple age example to show how input is stored and displayed.

Learn how to use prompt to collect user input, store it in variables, and concatenate strings with the plus sign to produce a single output on the browser.

Explore how arrays in JavaScript store many values under a single name, with elements located at different memory locations and accessed by zero-based indexes.

Learn how to declare an array in JavaScript and store country names as strings inside it. Access elements by index to retrieve Pakistan, China, and India.

Explore if else statements with prompt input, storing a value in a variable, and using document.write to display results, including less than, greater than, and = vs == for comparisons.

Learn how to use else if statements to determine a student’s grade from entered marks, mapping thresholds to A+, B, C, D, and fail cases using prompts and variables.

Explore how loops act as a core control structure to repeat statements in programs. Learn about for loops, while loops, and do-while loops, including counter variables, conditions, and increments.

Explore for loops in JavaScript, using a counter initialized to zero, with a condition like i less than or equal to six and increments or decrements and multiple statements.

Apply a for loop to iterate over an array of bikes, access each element by index, and update the loop variable to display values and outcomes.

Explore how the while loop controls iteration with a condition, handles increment and decrement steps, and ends with a print statement, while introducing variables and memory locations.

Practice while loop practicals in JavaScript for beginners, applying conditions such as less than or equal to and equal to. Follow along with examples to apply loop logic and validate results.

Learn the break statement in JavaScript, which exits for and while loops when a condition is met, after the loop body executes.

Explore how to define, name, and call simple functions in JavaScript, reuse them to reduce code, and demo a basic addition function and function calls.

Learn how to define a JavaScript function with parameters, return a value, and call it with arguments to see how a and b determine c.

Explore the properties of variables in JavaScript, including the length property and how spaces affect counts. Learn to spot undefined values and avoid spelling mistakes in variable names.

Explore how to use methods in JavaScript to transform text, including upper and lower case, and adjust properties like font color and size to style elements.

Discover how to use JavaScript methods to find index positions, access names and values, and perform a searching method in beginner web development.

Learn JavaScript math functions and the Math object, including rounding, logarithms, sine, cosine, tangent, and random number generation to apply practical math in web development.

Learn how to create an event handler in JavaScript by wiring an on click event to a submit button, calling a function, and displaying an alert when data is submitted.

Create a simple object in JavaScript by using a function as a constructor, assign name, gender, and age to properties, and print the details with a new instance.

Learn how to create a JavaScript object using an object initializer to minimize code length by declaring properties like name, gender, and age in a single block.