Drag and drop rows within ui grid in Angular js

Ui Grid is the popular grid system specially for Angular 1.x(Currently ui-grid doesn’t support angular 2 and above version). Ui-grid has no dependency rather than angular which makes it light weight. It has very rich feature set such as sorting, filtering, grouping and pagination and also has server side support for data-binding and pagination. Continue reading “Drag and drop rows within ui grid in Angular js”

Rotate object or shape in HTML5 Canvas

HTML5 canvas provides rotate(angle) method which is used to rotate the canvas around the current origin clockwise. The parameter ‘angle’ should be radians not in degrees. You can use degree * Math.PI/180 formula to convert the degree in radians, suppose if you want to rotate canvas 45 degree you can use 45*Math.PI/180 for the angle. Continue reading “Rotate object or shape in HTML5 Canvas”

Create a animated Analog clock in HTML5-Animation on canvas

In this article I will see that how can you create a analog clock on canvas element and JavaScript in HTML5. This article also gives you a better understanding of how to draw arcs and lines on canvas in HTML5. Continue reading “Create a animated Analog clock in HTML5-Animation on canvas”

HTML 5: Draw the Grid lines on the Canvas

This article demonstrates how can we draw the grid lines on the HTML 5 canvas object. You can See the below demo in which you can reset the thickness and size of the grid lines from the drop down options. Continue reading “HTML 5: Draw the Grid lines on the Canvas”

Change the caption of the button on click in JavaScript and jQuery

The following code samples demonstrate how can you change the text of the existing controls at client side. The example change the text of a button ‘show image’ to ‘hide image’ after showing the image on the click event. You can see in the below demo: Continue reading “Change the caption of the button on click in JavaScript and jQuery”

HTML input tag that accepts only numeric values using JavaScript

I need to restrict certain number of input field to takes only numbers values. Basically my form is not a submit form so that i can not put the simple validation on the form submission. I want the user to be unable to enter the any other characters than numeric values. Continue reading “HTML input tag that accepts only numeric values using JavaScript”