Vuong's Technical Blog

Hi, I will share some best practice that took me hour to figure out what's solution. Perquisite: I follow the tutorial series here , so things are basically set up. 1/ Cannot add more column to table  After I completed all the tutorial series, I've got a XS service expose table data as OData service. And I can use the service to bind onto UI in SAPUI5 application. Then I come up with idea to add more data & relation so that I can do more with my application. That's when I got error: Even I add one column to my table, added data using SCV import. The 2 files are saved & activated successfully. But the data didn't returned in the Data service. When I check in the catalog of the service, it look like this (the new column "INSTOCK" does not have data): Issue with "INSTOCK" column I've thought that I cannot modify the structure of table during the database is up & running. So I tried to restart the database but it didn...

Hi all, I'm new with AngularJS in one project. The different of a directive in Javascript code & HTML markup has caused me lots of trouble. It took me one day of work just to found out the reason is the type of one HTML markup. The story: I used the library of the material table from  https://github.com/daniel-nagy/md-data-table#api-documentation Things are good. Only one thing not work is that pagination total number. I've checked everything correctly with the document in that link. After a long time investigating all the possible reason, I end up finding out that I'm using an HTML markup in camelCase  as mdTotal (which get from the documentation ), instead of writing it in s nake-case as md-total . I shall remember this forever when working with AngularJS, and so do you. ---V---

Let’s try the performance of this keyboard. Well, to be honest, the keyboard is not really good at typing. The keys go no really smooth. The feeling is hard. Don’t know why Logictech can create such keyboard with best key feeling like this. Is it because they try to put the window & Mac keyboard inside one? That have different ASCII code & require more electronic board under to control it? I guess it’s the only reason. This keyboard is not cheap. Which mean it should deliver great typing experience, but I didn’t get it. The keyboard seem like a old keyboard which have a really not good feeling when type.  Shall I return? The responsive is OK, not really fast. Ah maybe the responsive (time from key pressed till it display on screen) affected by the key typing experience. Since the keys are hard to press down (unlike Mac keyboard or chipset keyboard), I feel it take more time to me to type the text. But anyway, it’s far more cheaper than a genuine Mac keyboard,...

I've just had a very similar problem, where I couldn't get npm to work behind our proxy server. My username is of the form "domain\username" - including the slash in the proxy configuration resulted in a forward slash appearing. So entering this: npm config set proxy "http://domain\username:password@servername:port/" then running this npm config get proxy returns this: http://domain/username:password@servername:port/ Therefore to fix the problem I instead URL encoded the backslash, so entered this: npm config set proxy "http://domain%5Cusername:password@servername:port/" and with this the proxy access was fixed. Note: - It's better the password has no special characters . - Sometimes, the https-proxy should use the same http :// instead of https :// Details can be found here . ---V---

Normally, in the past (and till now), many milk box (made by paper) is cover by 2 cord: one need spin & 1 need to cover the milk inside. With this type, if the user wants to get the milk inside the box. They need to take off 2 cords: 2 steps required. With the innovation from LIF: user needs only one step: spin the outer cord. Since the outer cord is linked with the inner paper cord by a hard plastic key. So if customer spin the outer cord, the key will spin as well, which open the inside cord at the same time. This invention now helps millions of customer save effort to open the milk box every day!!! ---V---

For windows, press Window, type run,  open RUN utility window. Enter text: chrome.exe --user-data-dir="C:/Chrome dev session" --disable-web-security Details can be found here . For Mac & Linux, check here . ---V---

You see an interesting font on a website and want to have it to test with your site? Follow below step to get it. Disclaim: For commercial purpose, kindly ask the permission from the owner of the font. 1. Open the developer tool 2. Go to source tab. 3. Find the font you need, usually, it's in folder /css  or / font 4. Right-click on the font name, find the option to download it (usually: 'open in new tab') ---V---