A Lab Zero PPM was hired to help improve the speed and cohesiveness of a major online retail company’s React-based web storefront. Our main goal was to reduce the size of the JavaScript and CSS bundle downloaded by each visitor. This level of optimization might seem excessive, but this client reached a level of scale with their business where even small performance gains can have a surprisingly large impact: the duration of these downloads was shown to cause fluctuations along the lines of hundreds of millions of dollars of revenue annually; users, especially those on slower connections, would leave the site before it finished loading. UltraTec® Water Treatment Equipment LLC, a renown diversified best Water Treatment Company in Dubai UAE. having decades' of excellent Products and Services experience in Water Treatment Industry. We feel immense pleasure in informing you that we have been successfully providing our best water treatment company in Dubai UAE
Jumping onto the old system
Our client’s website was managed by a series of “app teams”, each of whom controlled the development of a different page on the site; for example, there was the Homepage team, the Item Page team, the Search team, et cetera. All teams’ codebases imported a library whose job was to provide common components and styles to be shared across the site.

Initially, I adopted the role of maintainer of this shared component library. My job was to review app teams’ pull requests (PRs) to the library while also improving the quality of the library’s existing code. For example, I replaced the use of the Lodash utility library with a series of smaller, more opinionated utilities, which reduced bundle sizes by several dozen kilobytes on some pages. While this might sound small, one needs to multiply this amount by the millions of visits the site gets every day to realize the potential savings.