Mindset at work

Fansipan mountain

As a mentor, I always give to my new members the following practices as my advice for mindset at work.

“A over B” means while there is value in the items on the right, we value the items on the left more.

Solution over Technology

We should approach to solve the problems rather than depending on technologies. The technology limitation should not our excuse to reduce the quality of the feature.

For example, we’re strong at React, but we are willing to learn a new framework Meteor due to customer needs.

We are software engineers, we are good at problem-solving. Technologies are our toolbox.

Contribution over Complaint

When we encounter and find pain-in-the-ass issues such as lacking documentation, old frameworks/libs, lacking testing, etc.. we try our best to resolve them!

Refer to The Boy Scout Rule:

“Always leave the campground cleaner than you found it.”

Collaboration over Following

Sometimes you even need to consult customers to bring great customer value rather than always follow the provided requirements.

Comments

[Snippet] CSS - Child element overlap parent

I searched from somewhere and found that a lot of people says a basic concept for implementing this feature looks like below: HTML code: <div id="parent"> <div id="child"> </div> </div> And, CSS: #parent{ position: relative; overflow:hidden; } #child{ position: absolute; top: -1; right: -1px; } However, I had a lot of grand-parents in my case and the above code didn't work. Therefore, I needed an alternative. I presumed that my app uses Boostrap and AngularJs, maybe some CSS from them affects mine. I didn't know exactly the problem, but I believed when all CSS is loaded into my browser, I could completely handle it. www.tom-collinson.com I tried to create an example to investigated this problem by Fiddle . Accidentally, I just changed: position: parent; to position: static; for one of parents -> the problem is solved. Look at my code: <div class="modal-body dn-placeholder-parent-positi...

Selenium - Use Explicit Waits for checking elements quickly disappear like loading icon

I have a table that is displayed a list of competence groups. When I click on a competence group, it will display a table that contains a lot of criteria belong to the competence group. Each times I click on a competence group, a "loading" icon is displayed while waiting for all criteria is fully displayed. <div id="loading" style="display: none;"> <div></div> <div></div> I tried to write a Selenium test to make sure this behavior is covered. I saw that the loading icon element is always available on DOM tree because I just used Jquery to handle its displaying. Beside that, the loading icon is appeared dynamically and quickly disappear afterwards. It is hard to checking the visibility on GUI of loading icon. By normal way that I frequently used, the code looks like: public boolean isLoadingIconDisplayed() { List<WebElement> loadingIcons = driver.findElements(By.id("loading")); if(!loadingIcons.isE...

BIRT - Fix the size of an image

I use a dynamic image as a logo my report in pdf. At the beginning, I use table to align the logo in left or right. I meet a problem with some images with a large width or height. My customer requires that the logo should be displayed in original size. These following steps solves my problem: 1. Use Grid instead of Table 2. Set Grid "Height" is 100% and "Width" is blank 3. Set "Fit to container" for images are "true". Download the the template here .

Multiple Inheritance of State and Implementation

Today, I was just curious about why an enum can not extend anything else. I took a look on the Oracle document here , and I found the answer is below: "All enums implicitly extend java.lang.Enum. Because a class can only extend one parent (see Declaring Classes), the Java language does not support multiple inheritance of state (see Multiple Inheritance of State, Implementation, and Type), and therefore an enum cannot extend anything else." I have been learned of it before. But, wait a sec...! Why Java does not support multiple inheritance of state? Since I have worked with other programming languages like C++, I was able to make a class extend some other classes. The short answer is to avoid the issues of multiple inheritance of state . I wonder if other programming languages have these below terms but Java does. Multiple inheritance of state It is the ability to inherit fields from multiple classes. There is a problem and Java avoids it. "For exa...

git cherry-pick [commit]

Customer Needs My team already had a go-live app in a customer environment some months ago. We have been developing some new features for our next milestone. The situation is described in the picture below: We used Git for our codebase management. The go-live app running on our customer environment was at version ` v1 `. The latest sprint release was at version ` v7 ` for our developing app. Our customers wanted to have two separated release packages for our current sprint release. We all know that it was easy to ship the package to the developing app. However, the issue was that how we just picked some features needed for the go-live app. We called this package was a hotfix. Git Cherry-Picking Fortunately, we found that Git provided a way to achieve this task. Actually, we had all commits on the branch ` master ` already. We created a new branch called ` hotfix/v1.1 ` and we traced back which commits needed. We used cherry-picking for merging these commits to this branch....

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