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Huáng JùnliàngandGitHub 26af3161e6 Optimize do expression output (#17444)
* add new test case

* opt: conditionally apply the flatten transform

Only apply the flatten transform when the do expression contains Break/Continue/Return. This enables us to optimize the output since we don't have to memoize intermediate results.

* update test outputs

* remove unreachable code

variable declaration within for in/of can not have initializer.

* update test case to cover spread element

* add more test cases for early exit scenario

* make node 6 happy

* revert complex variable declaration removal
2025-07-25 14:29:47 -04:00

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JavaScript

const v1 = (effects.push(1), true) ? (effects.push(2), 2) : (effects.push(3), 3);
const v2 = (effects.push(4), false) ? (effects.push(5), 2) : (effects.push(6), 3);