Pass Data between Components in Angular 6 Example Application

Continuing from my previous post has an example of filter pipe usage in Angular 5 application. Here we will upgrade that simple filter app to level next. I have upgraded this application to Angular v6, worked basically on two important methods using which we can pass data between Angular components.

Continue reading Pass Data between Components in Angular 6 Example Application

How to Show Radio Input Listing in Angular 6

Listing of items in data is a simple way to show items. If users have to select only a single Item out of it, we need to use radio input fields. here we will discuss the implementation of radio input list in Angular 6. We will develop a simple Angular application which will have the following tasks:

1) Create a new Angular Application.
2) item.ts having item model definition.
3) mock-data.ts, will have a list of items.
4) use ngModel to have data binding flowing both sides.
5) Change event binding to get Checked item record.

Continue reading How to Show Radio Input Listing in Angular 6

Share Data between Angular Components Using @Input Decorator

Angular’s best feature is component. We can divide different modules into a number of components. Where each component having its own responsibility to perform. But, sometimes these components may need to communicate with each other and share data having each other’s dependencies.

In this post, we will discuss a simple example app which will share data between components using @Input() Decorator. @Input() decorator will allow passing data in the defined template.

Continue reading Share Data between Angular Components Using @Input Decorator

Resolved! Disable Alphabetical Sorting of JSON Attributes in Response from C sharp Service

JSON response received on the client side is generally in alphabetical order. This happens when we don’t add any sort order on our server-side API layers. In one of my project, there was a situation in which I wanted to add columns in Excel file from JSON response, as JSON attributes( In my case colum headers ) arranged in alphabetical, but I wanted them to be in some required order. I tried to do this client side in JS but it costs a lot! in term of page loading performance when data is large. As my services were in ASP.NET using C sharp so after some research, I tried something which worked like charm.

Continue reading Resolved! Disable Alphabetical Sorting of JSON Attributes in Response from C sharp Service

Create and Download XLS Excel From JSON Response Data in Webpage Using Javascript

Viewing formatted data on HTML webpage is a good idea until the user wants to do some quick changes in tabular data like sorting, filtering. So it is better to take it in your own hands instead of making server calls. Today we will convert JSON response data into the Excel file. Excel file will have a header and columns defined which will be downloaded on the client side.

Continue reading Create and Download XLS Excel From JSON Response Data in Webpage Using Javascript

Resolved! FirebaseInstanceIdService is deprecated

So after updating the version of firebase-messaging in the build.gradle file from v17.0.0 to v17.1.0, strange things started happening…

there was a line of horror in service I used to use for messaging in my application. After some research, I landed on this page.

Let’s quickly go to updates which we need to do to get it working like before.

Continue reading Resolved! FirebaseInstanceIdService is deprecated

Lazy / Partial Load Modules and Controllers in AngularJS Example

A complex application built using AngularJS takes a lot of time to load due to a large number of view controllers and other modules. As AngularJS acts as a web application we need to load all resources on page load. But we can adopt a new approach to load only required resources like controllers which we need for that particular view. This is called Lazy Loading where we load what we need.

Continue reading Lazy / Partial Load Modules and Controllers in AngularJS Example

How to Add Google reCAPTCHA in PHP form

This is a really quick tutorial to add Google reCAPTCHA in a PHP form. reCAPTCHA is used to prevent spam or autonomous illegal activities on your website, which can result in overuse of the bandwidth of your server fill your databases with junk data.

Here we will discuss v2 of Google reCAPTCHA.

Continue reading How to Add Google reCAPTCHA in PHP form

Namecheap Hosting Not Reflecting Latest Javascript Files Code on Upload

I am in India and using Namecheap hosting from last 5 years. But from past 2 years, I was facing a strange issue with uploading javascript file on the server. JS file was not reflecting on the server and was not same as uploaded. I talked to NamecheapĀ support about 5 times but they said we are seeing the latest file. They always told me to clean browser cache which was of no use.

Continue reading Namecheap Hosting Not Reflecting Latest Javascript Files Code on Upload

Convert HTML Document into Image JPG PNG from Canvas

html2canvas is a powerful library to convert HTML into a canvas. Canvas created can be used to create PDF or we can simply append in the document somewhere required. Here we are going to simply convert HTML document or any element into a canvas which we later convert into Image of JPG or PNG type.

Continue reading Convert HTML Document into Image JPG PNG from Canvas