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JS: simplify static boolean expressions

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
35/100
Issue type
Feature
Clarity
Mostly clear
Activity status
Stale
Tech stack
go, javascript
Domain
tooling

Research direction

Start by reading the JavaScript minifier entry point and its tests for static expressions; the issue does not name specific files. Check how boolean literals are currently emitted, then add coverage for both if (true) and if (false) cases. Done means static boolean conditions are evaluated away while nonstatic conditions remain unaffected.

Written by the indexing model from the issue text.

Description

Example of code which is not optimized:

if (true) {
console.log("true")
}
if (false) {
console.log("false")
}

It is minified into !0&&console.log("true"),!1&&console.log("false") while it would be better to pre-evaluate the expression and just minify it into console.log("true") (of course only static boolean values).

Thanks!

Dominant language
Go
Stars
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Forks
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Avg merge
2d 4h
Merged PRs (30d)
10

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