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Fix undefined variable in README example code #62

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Fix undefined variable in README example code #62

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2 changes: 1 addition & 1 deletion README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -25,7 +25,7 @@ Pretext serves 2 use cases:
import { prepare, layout } from '@chenglou/pretext'

const prepared = prepare('AGI 春天到了. بدأت الرحلة 🚀', '16px Inter')
const { height, lineCount } = layout(prepared, textWidth, 20) // pure arithmetics. No DOM layout & reflow!
const { height, lineCount } = layout(prepared, 320, 20) // pure arithmetics. No DOM layout & reflow!
```

`prepare()` does the one-time work: normalize whitespace, segment the text, apply glue rules, measure the segments with canvas, and return an opaque handle. `layout()` is the cheap hot path after that: pure arithmetic over cached widths. Do not rerun `prepare()` for the same text and configs; that'd defeat its precomputation. For example, on resize, only rerun `layout()`.
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