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Liana Ali

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Total Cost for Backpack Travel to Ho Chi Minh, Vietnam

on Wednesday, January 30, 2019

#TotalCost #travel airasia airbnb backpack budget halal ho chi minh info jimat malaysian muslim shopping street food ticket tips total cost travel vietnam

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Road Trip to Penang!

on Monday, January 28, 2019

#Tips #travel bandar cassia botanic garden bukit bendera chee cheong fun ets fruitmade hameediyah penang penang hill roadtrip teochew chendul the habitat wassup youth hostel

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AngularJS: Default Views for Multiple State UI-Routing

on Friday, January 25, 2019

#technology angularjs coding default html info it js parent-child software software engineering teknologi tips tutorial ui-router

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C# API: Return Result Not Latest

on Wednesday, January 23, 2019

.net #HowTo #technology api c# coding CRUD datacontext info it linq programming software engineering sql step by step teknologi tips

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ESC/POS: Print QR Code on Receipt

on Thursday, September 13, 2018

.net #HowTo #technology #tutorial c# coding command esc esc/pos pioneer step5e pos print printer qr qrcode receipt software engineering step by step step5e tutorial

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.Liana Ali.

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Latest Popular Posts

ESC/POS: Print QR Code on Receipt

QR code has been used widely in the past few years; either for ticketing, purchasing and etc. Since last year, it's usage become trending technology when e-wallet industry emerge . Some of us might have different ways on how to print it on receipt/ticket; send qr code as image and print, or send the data to be convert to qr code and let the printer do the work. This entry will guide you on how to print qr code using receipt printer ( Model: Pioneer STEP-5e Receipt Printer ) by using ESC/POS command in C#/.NET . COMMON ESC/POS COMMANDS ESC a 0 = align left ESC a 1 = align center ESC a 2 = align right ESC E 1 = turn on bold/emphasize mode ESC E 0 = turn off bold/emphasize mode ESC d n = feed/extra nth line GS V 66 = partial cut for receipt ESC @ = initialize printer QRCODE ESC/POS COMMANDS 1. Selects QR Code model Function 165: GS ( k pL pH cn fn n1 n2 2. Sets the module size of QR Code Function 167: GS ( k pL pH cn fn n 3. Selects the error correction level for

NPM: Unable to Verify the First Certificate

I just recently given a test whereby one of the question requires me to build an API. There's plenty of ways on how to complete the test. I can always stick with C#/ASP.Net, but I decided to try something new; NodeJS and MongoDB . Both of it is fairly new to me. As usual, I do some research online in order to find the right tutorial where I can learn and understand how they work and their syntax as well. For me, as long as you get the logic right, it doesn't matter what language you use, you'll get there in no time . :) Problem I found this tutorial very helpful; Build a Node.js API in Under 30 Minutes . While following the steps in that tutorial, I encounter this issue(s) when I tried to "npm install". It displayed below error. If you refer to the above screenshot; the root cause of the error is because it's unable to verify the first certificate. Based on my previous experiences, it might caused by the https. Solution As usual, I start digging a

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