How React Works · Part 068 min read
Fiber - Work You Can Pause
Why React replaced recursion with fibers, how a render walks a linked tree one unit at a time, and what it means that React can pause or throw away unfinished work.
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- How React Works · Part 058 min read
Reconciliation - Finding What Changed
How React compares the new element tree with the old one in roughly linear time, why type and key decide whether state survives, and what the comparison hands to the commit.