Limit Number Of Checkbox Selections Using JavaScript
Introduction This tutorial shows how to limit number of checkbox selections using JavaScript in a group of checkboxes. Suppose you have a group of checkboxes in a form or in…
AJAX Technique Example Using JavaScript
AJAX – Asynchronous JavaScript And XML This tutorial shows an example on AJAX using JavaScript. AJAX is an acronym that stands for Asynchronous JavaScript And XML. Therefore it is not…
JavaScript function which takes multiple ids and returns multiple elements
Introduction This tutorial shows how to implement a JavaScript function which takes multiple ids and returns multiple elements. document.getElementById() only supports one name at a time and returns a single…
Find Full Path For Nested Categories In MySQL
Path For Nested Categories This tutorial shows how to find the entire or full path from root to child for nested categories and subcategories. Let’s say you have a table…
Generate Zero-Fill Auto-Incremented Id In MySQL
Zero-Fill Auto-Incremented Id This tutorial shows how to generate zero-fill auto-incremented unique identifier in MySQL. Sometimes you may need to generate such keys which are used in some part of…
Select only one random item from each category in MySQL
This tutorial shows how to select items randomly from each category in MySQL. So here I will select exactly one item randomly from each category. People who need sometimes to…
Custom regex function to replace characters in MySQL
This tutorial shows how to replace the characters in a string or text using regular expression in MySQL function. There is no built-in function available to replace any character in…
Instantiate Object From A Class Which Contains Private constructor
Private Constructor You probably know that you cannot make any object if the Class contains private constructor but this is not true until a special care is taken to the…
How to read input through keyboard in Java
This tutorial shows how to read input from keyword using Java programming language. For example if your database connection string changes then you don’t need to worry because for any…
Verify A String Contains Only Numeric Value Using Java
Introduction The below example shows how to verify that a string contains only numeric value in Java. String may contain float value, double value etc. This example uses regular expression…