The Overlapping Rectangles using CSS and Javascript
Make three rectangles (Div or Span containers) as shown in the above figure. Clicking on any rectangle should display (using alert is fine) the name of the rectangle. Three …
Category: javascript
Comparing Left and Right Branch of a Complete Binary Tree
A complete binary tree is a binary tree that each level except possibiliy the last level, is completed filled. Suppose you are giving a binary tree represented as an …
The Variable Expansion Algorithm Using Regular Expression in Javascript
Let’s say, if we want to expand strings that contain dynamic variables, we can use regular expression to do this easily. const varContent = { VAR: "World", } console.log(expand("Hello, …
How to Determine the Leap Year?
A Leap year occurs mostly every 4 years, but every 100 years, we skip a leap year, unless it is divisible by 400. Leap Year Algorithm if (year is …
Using Reduce to Count the Array in Javascript
Let’s say, we have an array in Javascript, and we want to group the elements, ount their occurences and store the final results in a key-value dictionary. Input Array: …