Gathering detailed insights and metrics for trashable
Gathering detailed insights and metrics for trashable
🚮 A wrapper to make promises cancellable and garbage collectable
Installations
npm install trashableDeveloper Guide
BETA
Typescript
No
Module System
CommonJS
Node Version
8.1.3
NPM Version
5.3.0
Releases
Unable to fetch releases
Languages
1
JavaScript
JavaScript (100%)
Developer
hjylewis
Download Statistics
Total Downloads
0
Last Day
0
Last Week
0
Last Month
0
Last Year
0
GitHub Statistics
MIT License
84 Stars
38 Commits
9 Forks
2 Watchers
3 Branches
4 Contributors
Updated on Oct 09, 2024
Maintainers
1
Package Meta Information
Latest Version
1.0.7
Package Id
trashable@1.0.7
Unpacked Size
141.29 kB
Size
38.84 kB
File Count
14
NPM Version
5.3.0
Node Version
8.1.3
Total Downloads
Cumulative downloads
Total Downloads
NaN
Last Day
0%
NaN
Compared to previous day
Last Week
0%
NaN
Compared to previous week
Last Month
0%
NaN
Compared to previous month
Last Year
0%
NaN
Compared to previous year
Weekly Downloads
Monthly Downloads
Yearly Downloads
Trashable :put_litter_in_its_place:
A wrapper to make promises cancellable and garbage collectable. See how this relates to React below and use trashable-react to make your React components garbage collectable.
Installation
1npm install --save trashable
How to use
1import makeTrashable from 'trashable'; 2 3let promise = new Promise((resolve) => { 4 setTimeout(resolve, 10000); 5}); 6 7let trashablePromise = makeTrashable(promise); 8trashablePromise.then(() => { 9 console.log('10 seconds have passed'); 10}); 11 12trashablePromise.trash();
Why you should cancel promises
You wanted a banana but what you got was a gorilla holding the banana and the entire jungle.
— Joe Armstrong
The handlers you pass to promises often reference other objects. These objects can be quick large. This means if the promise is still in flight (not resolved or rejected), these large objects cannot be safely garbage collected even when the promise result has been forgotten and been ignored. That is why canceling promises so that the objects their handlers reference can be freed is so important.
React
In particular, this issue has reared its head in React with the use of
isMount() method (now deprecated). This article
gives a good explanation for why using isMount() should be avoided. Simply
put, prevents a garbage collector from getting rid of potentially large React
Elements.
It recommends to clean up any callbacks in componentWillUnmount so that they
won't call setState() after the element has been unmounted and thus continue
to reference the Element.
Unfortunately, this is not that easy if promises are used and the solution it provides in that article actually doesn't solve the garbage collection problem. The cancel method does nothing to dereference the handlers and the Element will not be garbage collected (see more in the PROOF).
Use trashable-react to make your React components garbage collectable.
Why is this any different than other Cancelable Promise libraries
Unlike other cancelable promise libraries, Trashable actually dereferences the promise handlers so that objects that were referenced can be garbaged collected appropriately, freeing up memory.
Gotchas
You need to make your promises trashable before you add your then and
catch handlers. Otherwise, you will not get the garbage collection benefits.
1// Do this 2const trashablePromise = makeTrashable(promise); 3trashablePromise.then(() => {}); 4 5// NOT this 6const handledPromise = promise.then(() => {}); 7makeTrashable(handledPromise);
Inspiration
No vulnerabilities found.
Reason
no binaries found in the repo
Reason
license file detected
Details
- Info: project has a license file: LICENSE:0
- Info: FSF or OSI recognized license: MIT License: LICENSE:0
Reason
Found 4/25 approved changesets -- score normalized to 1
Reason
0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
Reason
no effort to earn an OpenSSF best practices badge detected
Reason
project is not fuzzed
Details
- Warn: no fuzzer integrations found
Reason
security policy file not detected
Details
- Warn: no security policy file detected
- Warn: no security file to analyze
- Warn: no security file to analyze
- Warn: no security file to analyze
Reason
branch protection not enabled on development/release branches
Details
- Warn: branch protection not enabled for branch 'master'
Reason
SAST tool is not run on all commits -- score normalized to 0
Details
- Warn: 0 commits out of 11 are checked with a SAST tool
Reason
66 existing vulnerabilities detected
Details
- Warn: Project is vulnerable to: GHSA-v88g-cgmw-v5xw
- Warn: Project is vulnerable to: GHSA-93q8-gq69-wqmw
- Warn: Project is vulnerable to: GHSA-fwr7-v2mv-hh25
- Warn: Project is vulnerable to: GHSA-67hx-6x53-jw92
- Warn: Project is vulnerable to: GHSA-v6h2-p8h4-qcjw
- Warn: Project is vulnerable to: GHSA-cwfw-4gq5-mrqx
- Warn: Project is vulnerable to: GHSA-g95f-p29q-9xw4
- Warn: Project is vulnerable to: GHSA-grv7-fg5c-xmjg
- Warn: Project is vulnerable to: GHSA-3xgq-45jj-v275
- Warn: Project is vulnerable to: GHSA-rq8g-5pc5-wrhr
- Warn: Project is vulnerable to: GHSA-hr2v-3952-633q
- Warn: Project is vulnerable to: GHSA-h6ch-v84p-w6p9
- Warn: Project is vulnerable to: GHSA-qrmc-fj45-qfc2
- Warn: Project is vulnerable to: GHSA-8r6j-v8pm-fqw3
- Warn: Project is vulnerable to: MAL-2023-462
- Warn: Project is vulnerable to: GHSA-xf7w-r453-m56c
- Warn: Project is vulnerable to: GHSA-q42p-pg8m-cqh6
- Warn: Project is vulnerable to: GHSA-w457-6q6x-cgp9
- Warn: Project is vulnerable to: GHSA-62gr-4qp9-h98f
- Warn: Project is vulnerable to: GHSA-f52g-6jhx-586p
- Warn: Project is vulnerable to: GHSA-2cf5-4w76-r9qv
- Warn: Project is vulnerable to: GHSA-3cqr-58rm-57f8
- Warn: Project is vulnerable to: GHSA-g9r4-xpmj-mj65
- Warn: Project is vulnerable to: GHSA-q2c6-c6pm-g3gh
- Warn: Project is vulnerable to: GHSA-765h-qjxv-5f44
- Warn: Project is vulnerable to: GHSA-f2jv-r9rf-7988
- Warn: Project is vulnerable to: GHSA-44pw-h2cw-w3vq
- Warn: Project is vulnerable to: GHSA-jp4x-w63m-7wgm
- Warn: Project is vulnerable to: GHSA-c429-5p7v-vgjp
- Warn: Project is vulnerable to: GHSA-43f8-2h32-f4cj
- Warn: Project is vulnerable to: GHSA-qqgx-2p2h-9c37
- Warn: Project is vulnerable to: GHSA-2pr6-76vf-7546
- Warn: Project is vulnerable to: GHSA-8j8c-7jfh-h6hx
- Warn: Project is vulnerable to: GHSA-896r-f27r-55mw
- Warn: Project is vulnerable to: GHSA-9c47-m6qq-7p4h
- Warn: Project is vulnerable to: GHSA-fvqr-27wr-82fm
- Warn: Project is vulnerable to: GHSA-4xc9-xhrj-v574
- Warn: Project is vulnerable to: GHSA-x5rq-j2xg-h7qm
- Warn: Project is vulnerable to: GHSA-jf85-cpcp-j695
- Warn: Project is vulnerable to: GHSA-p6mc-m468-83gw
- Warn: Project is vulnerable to: GHSA-29mw-wpgm-hmr9
- Warn: Project is vulnerable to: GHSA-35jh-r3h4-6jhm
- Warn: Project is vulnerable to: GHSA-4xcv-9jjx-gfj3
- Warn: Project is vulnerable to: GHSA-f9cm-qmx5-m98h
- Warn: Project is vulnerable to: GHSA-7wpw-2hjm-89gp
- Warn: Project is vulnerable to: GHSA-952p-6rrq-rcjv
- Warn: Project is vulnerable to: GHSA-f8q6-p94x-37v3
- Warn: Project is vulnerable to: GHSA-vh95-rmgr-6w4m
- Warn: Project is vulnerable to: GHSA-xvch-5gv4-984h
- Warn: Project is vulnerable to: GHSA-5fw9-fq32-wv5p
- Warn: Project is vulnerable to: GHSA-6394-6h9h-cfjg
- Warn: Project is vulnerable to: GHSA-hj48-42vr-x3v9
- Warn: Project is vulnerable to: GHSA-hrpp-h998-j3pp
- Warn: Project is vulnerable to: GHSA-6g33-f262-xjp4
- Warn: Project is vulnerable to: GHSA-p8p7-x288-28g6
- Warn: Project is vulnerable to: GHSA-c2qf-rxjj-qqgw
- Warn: Project is vulnerable to: GHSA-2m39-62fm-q8r3
- Warn: Project is vulnerable to: GHSA-mf6x-7mm4-x2g7
- Warn: Project is vulnerable to: GHSA-j44m-qm6p-hp7m
- Warn: Project is vulnerable to: GHSA-3jfq-g458-7qm9
- Warn: Project is vulnerable to: GHSA-5955-9wpr-37jh
- Warn: Project is vulnerable to: GHSA-f5x3-32g6-xq36
- Warn: Project is vulnerable to: GHSA-jgrx-mgxx-jf9v
- Warn: Project is vulnerable to: GHSA-72xf-g2v4-qvf3
- Warn: Project is vulnerable to: GHSA-c4w7-xm78-47vh
- Warn: Project is vulnerable to: GHSA-p9pc-299p-vxgp
Score
1.9
/10
Last Scanned on 2025-07-07
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