There may be occasions when you'd want user to enter a username with valid alphabets and numbers only (alphaNumeric). You might also want to show a warning if the entered…

In JavaScript, there are multiple popular data manipulation libraries like lodash, underscore, buryjs, etc. However, there's a huge community who oppose the usage of such libraries, including me. I mean,…

Drawing or rendering polygons in Google Maps is doable with some effort. However, highlighting a polygon can be a bit challenging because Google doesn't provide any API to do that…

There are plenty of custom solutions, as well as libraries to help you generate PDF from HTML. eKoopman's html2pdf.js has been here for a while and is often the top…

There are multiple occasions when a user may want to export some data as a report. You can always create an excel / CSV file on the server and send…

Translating a Google Maps Marker can be handful, since Google Maps API doesn't provide any option to do that. However, there are alternative ways to do that programatically. This idea…

Google Maps provides no option to take snapshot / screenshot of a map directly. There are a few ways, like converting the DOM elements which hold the map into a…

Creating custom labels with Polygons has always been a challenging thing for JavaScript developers. The fact that the polygons API doesn't provide any option to show custom labels directly leave…

Here you're going to learn how to build a custom input search field with search results as you type. Here's what I'm going to do: I'm going to keep a…