Making It Better Without Making It Over
summary
A nine-year-old mobile job-search site at Indeed grows from near-zero JavaScript to 12,000 lines, doubling each year; initialization calls pass 40 arguments into page code. The codebase adopts a single-source-state pattern (Redux-like), introduces ESLint and instrumentation, and adds performance tooling (WebPageTest, Chrome DevTools, Charles). The team fixes ~250 lint issues, starts client-side event logs that let releases roll out per data center and detect regressions, and reduces change risk while restoring performance visibility and developer confidence.
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chapters (4)
- 0:00Start
- 12:5540 arguments
- 22:26Education is a powerful enabler of improvement
- 23:15Building for the web is better today.
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