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AngularJS File Upload Example

Hello readers, in this tutorial, we will understand how to upload a file or files in the angular web applications. For this tutorial, we’ll create a simple form that has a file upload field and binds it to the angular controller to get the data from the form. 1. Introduction Before we begin with the tutorial, let’s take a look ...

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AngularJS forEach() Example

Hello readers, in this tutorial, we will understand how to add the forEach() method in the angular web applications. 1. Introduction Before we begin with the tutorial, let’s take a look at the Angular JavaScript and its characteristics. 1.1 Angular JavaScript Angular is a JavaScript MVC or Model-View-Controller framework developed by Google that lets developers build well structured, easily testable, ...

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A walk through the GWT wrapper for Vue.js: vue-gwt

Introduction: Vue.js is one of the most popular JavaScript frameworks, along with Angular and React. It leverages modern techniques for building front end applications, and can come handy in maintaining apps that require considerable amount of JavaScript and CSS. The perks of Vue.js are numerous, and can be found in their documentation. In this post, we would like to focus ...

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VueJS as a Frontend for Rails

VueJS is one of the fastest rising stars in the JavaScript frontend ecosystem. It largely embodies simplicity and composability of frontend design solutions without going overboard. It provides a more elegant way to reduce complexity in both scripting and your styling by grouping them into components. This protects your site’s styles from conflicts and also provides logical organization for individual ...

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Yelp: Reverse geocoding businesses to extract detailed location information

I’ve been playing around with the Yelp Open Dataset and wanted to extract more detailed location information for each business. This is an example of the JSON representation of one business: $ cat dataset/business.json | head -n1 | jq { "business_id": "FYWN1wneV18bWNgQjJ2GNg", "name": "Dental by Design", "neighborhood": "", "address": "4855 E Warner Rd, Ste B9", "city": "Ahwatukee", "state": "AZ", "postal_code": ...

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JavaScript: Upgrading from MobX 2.6.0 to 2.7.0

As usual, you should check out the CHANGELOG. However, let me point out a few things specifically: If you have something like: observable({ @computed get someProp() { ... } }); your code will work in 2.6.0, but in 2.7.0 reactions won’t occur properly. Your tests will end up timing out. It needs to be: observable({ get someProp() { ... } }); ...

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AngularJS Events Tutorial

Hello readers, in this tutorial, we will understand how the event directives work in the angular library. 1. Introduction Before we begin with the tutorial, let’s take a look and at the Angular JavaScript Events in angular and its characteristics. 1.1 Angular JavaScript Angular is a JavaScript MVC or Model-View-Controller framework developed by Google that lets developers build well structured, ...

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TypeScript Tutorial for Beginners

Today we will learn about typescript and this tutorial provides fundamentals of typescript and try to cover most of the topics such as typescript variables, functions, enum, class, access modifiers, interface, typecasting, arrow functions and many more for beginers.Typescript is a superset of javascript and it adds optional static typing to javascript. You can do everything in typescript which you ...

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Node Js Chat Socket IO Example (Client & Server)

This tuorial is about socket programming in NodeJs. Here we will be using socket.io and express Js to create a sample chat application. Using socket.io library for websocket connection is very simple and it is a very powerful javascript library for realtime web applications.Here, we will be creating an application where there will be a server and a client communicating ...

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