This means the onus of security shifts from app store reviewers to users themselves. This feels like the right tradeoff,

We built internal infrastructure to diff JS and enable clients to download patches. We could drop our payloads size by over 90% for our weekly releases. This has become much better today and we’ve moved from ‘module-level diffs’ to ‘binary diffing’ using ‘bsdiff’.

To solve the infinite list problem, we had to build our own list view, which recycles cells instead of destroying and recreating to save memory and performance. Our first version was backed by native RecyclerView and UICollectionView, and in later revisions we built recyclerlistview in JS (only).

When we started, the efficiency in delivering JS updates OTA and improving the performance of the infinite list were our primary concerns. We needed some kind of bundle diffing to push frequent updates.

A lot of teams get into conflicts between Native vs React-Native performance without setting targets. Our intent was to set targets and then see if React-Native can match it. The goal that we agreed internally was to go with React-Native, if we can maintain or do better than existing load time metrics and scroll FPS.

Delayed experiments and bug fixes: The adoption time for newer app versions was very high, especially Android. It was necessary to wait for significant adoption to run AB experiments and roll out critical bug fixes. Such delays can cause negative impact on sales numbers and the customer experience in large-scale sale scenarios such as Flipkart’s most popular sale event, ‘The Big Billion Days’.

We read the source code and the comments on it, fixed memory leaks, and experimented with the possibilities in the usage of React-Native. Eventually, we saw success in migrating one of the most complex pages with no performance degradation.

Flipkart, the largest e-commerce player in India, has over 100 million app downloads and 400 million visits every week. The React-Native journey of these applications started back in 2016.

But the web is a place for sovereignty and choice. Part of that is responsibility. If people are never given the opportunity to learn how to protect themselves, they will always be beholden to others. Perhaps, PWAs offer people the opportunity to take back control and truly learn how to protect themselves.

It’s true that optimised native apps can outperform React-Native versions most times. However, considering the benefits such as OTA updates, we came up with the success metric for this experiment.

I’m excited about the future PWAs offer. The web, including mobile apps, should be open. It should be competitive. Despite Facebooks and Googles and Apples, the web can remain open, and PWAs will play a role.

Increased development effort: At Flipkart, the features and designs are uniform by choice, so they behaved the same way across platforms. We built the features/pages on the web stack only once. However, because of stack differences in mobile app development, we had to build every feature separately for Android, iOS. This translated into a significant loss of productivity in the Engineering teams.

I’m excited about the future PWAs offer. The web, including mobile apps, should be open. It should be competitive. Despite Facebooks and Googles and Apples, the web can remain open, and PWAs will play a role.

At each iteration, in addition to clocking the time taken by each algorithm, we check the pct_overlap as the ratio of the number of KNN nearest neighbors that were also picked up as nearest neighbors by the ANN.

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y more children. In large part, due to my realizing that I actually hate motherhood, I think this is the best decision. I would actually go crazy if we had another. Thankfully my husband is on board with this. But I see people getting pregnant and having their second and third kids, and I wonder what I’m doing so wrong and why I hate it so much.

In this article, we attempt to explain the rationale behind our choice of React-Native, briefly describe the onboarding challenges, and provide insights on some techno-functional aspects. Besides, the article briefly touches upon how Flipkart is currently using React-Native for its application development.