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Optimize JavaScript with Closure Compiler

A JavaScript checker and optimizer for compilation-focused workflows.

17
Hotness score
48
Reliability score
7,667
Stars
over 12 years
Age
0
Published reviews
0
Questions

Scores

Hotness and reliability

The two headline scores, measured daily, with 30, 90, and 180 day views.

Hotness score

Jul 19, 2026

Current17

Previous14

Weekly average

100500
Full metrics details

Derived only from GitHub GraphQL starredAt events after daily star totals are reconciled.

180 observed daily rows. Missing days are not fabricated.

Hotness formula

40% Hot today + 40% Hot this week + 20% Breakout.

  • 40% Hot today: 7
  • 40% Hot this week: 1
  • 20% Breakout: 1
  • Stars gained: 1d: 1
  • Stars gained: 7d: 0
  • Stars gained: 14d: 1
  • Stars gained: 30d: 2
  • Stars gained: 90d: 7667

Per-day formula: 0.40 × Hot today + 0.40 × Hot week + 0.20 × Breakout.

  • Same-day multiplier = stars 1d ÷ max(1, stars 7d ÷ 7)
  • Weekly multiplier = stars 7d ÷ max(1, stars 30d ÷ 30 × 7)
  • Fortnight multiplier = stars 14d ÷ max(1, stars 90d ÷ 90 × 14)
  • Hot today = clamp(70 × log-scale(stars 1d, 1000) + 30 × breakout-scale(same-day, 4))
  • Hot week = clamp(75 × log-scale(stars 7d, 5000) + 25 × breakout-scale(weekly, 3))
  • Breakout = clamp(35 × breakout-scale(same-day, 4) + 40 × breakout-scale(weekly, 3) + 25 × breakout-scale(fortnight, 2.5))
DateStarsStars 1dStars 7dStars 14dStars 30dStars 90dSame-day multiplierWeekly multiplierFortnight multiplierHot todayHot weekBreakoutStored score

Reliability score

Jul 19, 2026

Current48

Previous52

Weekly average

100500
Full metrics details

Derived from the displayed continuity, closure, shipping, liveness, and support-burden components.

180 observed daily rows. Missing days are not fabricated.

Reliability formula

30% Continuity + 30% Closure + 20% Shipping + 10% Liveness + 10% Support burden.

  • 30% Continuity: 49
  • 30% Closure: 78
  • 20% Shipping: 0
  • 10% Liveness: 98
  • 10% Support burden: 0

Per-day formula: 0.30 × Continuity + 0.30 × Closure + 0.20 × Shipping + 0.10 × Liveness + 0.10 × Support burden.

  • Continuity = 35% active ratio 90d + 20% active ratio 30d + 15% PR efficiency 90d + 10% PR efficiency 30d + 10% liveness + 10% observed-history coverage
  • Closure = 55% PR merge efficiency 90d + 45% issue close efficiency 90d
  • Shipping = 100 × (20% × release ratio 30d + 30% × release ratio 90d + 50% × release ratio 180d); ratios are releases ÷ 2, 6, and 12, capped at 1
  • Support burden = 100 − 2 × open issues per 1,000 stars
  • Liveness = 100 × exp(−pushed days ago ÷ 120)

Stars, issues, pull requests, and releases are daily observations. Pushed-days and license are repository snapshot-derived inputs and are not independent historical GitHub events.

DateIssues openedIssues closedPRs openedPRs mergedReleasesStarsOpen issuesPushed days agoContinuityClosureShippingLivenessSupport burdenLicenseObserved daysMissing daysNeeds healingStored score

Reliability breakdown

What drives the reliability score

Component scores measured daily from GitHub activity (2026-07-19).

Continuity30% of headline49

Activity on 14 of 90 tracked days in the last 90 and 5 of 30 in the last 30.

Activity pulse
Closure30% of headline78

Merged 11 of 10 PRs opened and closed 1 of 1 issues opened over the last 90 tracked days — PR flow carries 55% of this component, issue flow 45%.

PRs merged (90d)PRs opened (90d)Issues closed (90d)Issues opened (90d)
Shipping20% of headline0

0 releases in the last 180 days, 0 in the last 90 and 0 in the last 30 — a steady cadence scores highest.

Releases
Liveness10% of headline98

Last push 3 days ago — freshness decays as pushes age (roughly halves every 83 days without a push).

Repository
Support burden10% of headline0

Open-issue load isn't tracked for this repo yet.

Open issuesStargazers
Adoption confidence36

Modeled — how confidently teams are adopting this repo. Stargazers

Maintenance quality49

Modeled from PR/issue responsiveness and upkeep signals. Activity pulse

Risk score48

Modeled — lower is better; adoption and continuity risk. Repository

Stays active (30d)37%

Modeled chance the repo stays active over 30 days. Activity pulse

Stays active (90d)61%

Modeled chance the repo stays active over 90 days. Activity pulse

Release rhythm (180d)0

Regularity of releases over the last 180 days. Releases

Maintainer bus risk (90d)46%

Modeled — lower is better; concentration of commits in few maintainers. Contributors graph

Topics

Explore related topics

Jump into the topic listings this repository belongs to.

JavascriptMinification

Measured history

Project metrics

Weekly GitHub totals with 30, 90, and 180 day views.

Issues opened

Jul 19, 2026

Current0

Previous1

Weekly total

110
Full metrics details

GitHub API observation. Historical values render only when the source provides a real observation for that day.

179 observed daily rows. Missing days are not fabricated.

DateValue

Issues closed

Jul 19, 2026

Current0

Previous0

Weekly total

210
Full metrics details

GitHub Search issue totals queried for exact UTC days; rolling values are sums of proven daily counts.

179 observed daily rows. Missing days are not fabricated.

DateValue

Pull requests opened

Jul 19, 2026

Current1

Previous3

Weekly total

320
Full metrics details

GitHub API observation. Historical values render only when the source provides a real observation for that day.

179 observed daily rows. Missing days are not fabricated.

DateValue

Pull requests closed

Jul 19, 2026

Current1

Previous3

Weekly total

320
Full metrics details

GitHub Search pull-request totals queried for exact UTC days; rolling values are sums of proven daily counts.

179 observed daily rows. Missing days are not fabricated.

DateValue

Pull requests merged

Jul 19, 2026

Current1

Previous3

Weekly total

320
Full metrics details

GitHub API observation. Historical values render only when the source provides a real observation for that day.

179 observed daily rows. Missing days are not fabricated.

DateValue

Issue close ratio (daily)

Jul 11, 2026

Current0.00

Previous0.00

Daily ratio — a gap means nothing was opened that day

How this works: each day's value is issues closed that day ÷ issues opened that day. Days when nothing was opened render as gaps — never a rolling average or a made-up zero. Values above 1 mean the project closed more issues than arrived that day.

2.001.000.00
Full metrics details

GitHub Search issue totals queried for exact UTC days; rolling values are sums of proven daily counts.

9 observed daily rows. Missing days are not fabricated.

Per-day formula: issues closed that day ÷ issues opened that day; blank when nothing was opened (a gap, not a zero).

DateIssues openedIssues closedStored score

Pull request close ratio (daily)

Jul 13, 2026

Current1.00

Previous1.00

Daily ratio — a gap means nothing was opened that day

How this works: each day's value is pull requests closed that day ÷ pull requests opened that day. Days when nothing was opened render as gaps — never a rolling average or a made-up zero. Values above 1 mean the project closed more pull requests than arrived that day.

1.000.500.00
Full metrics details

GitHub Search pull-request totals queried for exact UTC days; rolling values are sums of proven daily counts.

19 observed daily rows. Missing days are not fabricated.

Per-day formula: pull requests closed that day ÷ pull requests opened that day; blank when nothing was opened (a gap, not a zero).

DatePRs openedPRs closedStored score

About Closure Compiler

Closure Compiler occupies a distinct place in the JavaScript tooling landscape because it combines code checking with aggressive optimization. Rather than serving only as a bundler, it is associated with compilation-oriented workflows where analysis and transformation are central to production output. That makes it especially interesting for teams that care about code size, optimization depth, and stricter assumptions about how JavaScript is written. Even when it is not the default choice for every modern stack, it remains an important project in the history and practice of JavaScript compilation.

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