NPM and Ionic failed to run - EACCES and EISDIR error

You create new project using ionic framework. And suddently it says that there are new update either ionic update or npm update. You run the npm -i g ionic or npm -i g npm.. and your nightmare starts. You have WARN tar EISDIR: illegal operation on a directory, open '/usr/local/lib/node_modules/.staging/@ionic/discover-b2d9d3b9/dist' WARN...

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Big Data - we forgot to clean our data

Recently I have been working with lots of data coming from various business area such as maintenance, financial transaction, etc., and I found an interesting thought from much top management and young leaders whom don't have enough experience handling data from the source up...

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Lesson learn on R conference (ConfeRence 2018, ADAX Malaysia)

I attended R conferences organized @ ADAX Malaysia (ConfeRence) on October 20, 2018, recently. I do have an interest in AI, ML and Semantics Analysis. It started since 2008 when I further studies focusing on program analysis, specialized on static analysis on C overflow vulnerabilities. There are key points which I would like to share based on the...

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Writing API using Native API

There are many tools/framework you can use without even need to write code such as strapi, LoopBack, Fusio, Api Umbrella, Kong, etc. If you need to develop it fast and run nginx or nodejs behind, utilizing and highly dependent on the available method and don't want to think or dirty your hand, then, either one of the above lists shall be...

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Managing multiple JDK in Mac OS

In MAC (Apple), it is a bit difficult to manage multiple Java Environment & JDK. If it is in windows, you may just change the home directory (JAVA_HOME) declaration in your system path. However, for Mac, you need to perform many steps and luckily there is a tool to help you out. Check out the tool Jenv at http://www.jenv.be/ and steps...

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Downloading and Formatting data for PDF output using Ionic, Angular, Cordova and TypeScript

It has been a while I did not focus and wrote anything on this blog and it is good to be back on track. Lets kick start with writing PDF on your mobile apps. You may have data retrieve and your client require you to download the data as PDF. I've done that on Excel and it was way easy to do that. Now lets start for PDF. It is pretty much easy too....

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Save list as CSV in ionic (PWA)

Read/Write file into devices Installation (https://ionicframework.com/docs/native/file/) Install the Cordova and Ionic Native plugins: $ ionic cordova plugin add cordova-plugin-file $ npm install --save @ionic-native/file Add this plugin to your app's module There are few ways you can use to download the file, but I'm using the easiest way, that...

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List of Data Sciences and Machine Learning usefull link

Credit to: Shivam PanchalAs published by Shivam at Linked @ https://www.linkedin.com/pulse/data-science-machine-learning-beginners-path-shivam-panchal/ Platforms: What Is Hadoop? Hadoop Tutorial For Beginners https://youtu.be/n3qnsVFNEIU What is Apache Spark? The big data analytics platform explained http://www.techworld.com.au/article/629920/what-apache-spark-big-data-analytics-platform-explained/ Apache...

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Synchronizing the Asynchronous - Controlling the flow in ascynchronous type of apps

You have certain process to run in sequence; for instance 1. Login into the system 2. Check if the user valid, user status is valid, user role is valid 3. Store for future references 4. Capture audit trail and set timing, menu etc 5. Finally, show correct page base on user role and preferences This shall be ok in synchronize programming. However,...

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Running javascript on typescript project (Ionic + Angular) - 'require' not found

Using javascript on Ionic + Angular project which is based on typescript may troublesome and causing you days to figure out. You can get many kind of error such as 'require' not found, 'typescripts' not available, 'no such library' etc. However, there are ways to implement. You can follow the steps mentioned here. I'm trying to implement bcryptjs on...

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