Gathering detailed insights and metrics for @luchanso/react-fast-compare
Gathering detailed insights and metrics for @luchanso/react-fast-compare
Installations
npm install @luchanso/react-fast-compareDeveloper Guide
BETA
Typescript
Yes
Module System
CommonJS
Node Version
10.9.0
NPM Version
6.4.0
Releases
Unable to fetch releases
Languages
1
JavaScript
JavaScript (100%)
Developer
luchanso
Download Statistics
Total Downloads
0
Last Day
0
Last Week
0
Last Month
0
Last Year
0
GitHub Statistics
MIT License
1 Stars
52 Commits
2 Watchers
3 Branches
1 Contributors
Updated on Apr 06, 2019
Maintainers
1
Package Meta Information
Latest Version
3.0.1
Package Id
@luchanso/react-fast-compare@3.0.1
Unpacked Size
11.75 kB
Size
4.71 kB
File Count
5
NPM Version
6.4.0
Node Version
10.9.0
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
Dev Dependencies
27
babel-corebabel-loaderbabel-preset-envbenchmarkbuildercore-jscoverallseslintfast-deep-equalkarmakarma-chrome-launcherkarma-firefox-launcherkarma-ie-launcherkarma-mochakarma-mocha-reporterkarma-safari-launcherkarma-webpacklodashmochanano-equalnycreactreact-test-renderershallow-equal-fuzzysinontypescriptwebpack
react-fast-compare
The fastest deep equal comparison for React. Really fast general-purpose deep comparison.
Great forshouldComponentUpdate. This is a fork of the brilliant
fast-deep-equal with some
extra handling for React.
(Check out the benchmarking details.)
Install
1$ yarn add @luchanso/react-fast-compare 2# or 3$ npm install @luchanso/react-fast-compare
Highlights
- ES5 compatible; works in node.js (0.10+) and browsers (IE9+)
- deeply compares any value (besides objects with circular references)
- handles React-specific circular references, like elements
- checks equality Date and RegExp objects
- should be just as fast as fast-deep-equal for general use, and faster for React use
- small: under 600 bytes minified+gzipped
Usage
1const isEqual = require("@luchanso/react-fast-compare"); 2 3// general usage 4console.log(isEqual({ foo: "bar" }, { foo: "bar" })); // true 5 6// react usage 7class ExpensiveRenderer extends React.Component { 8 shouldComponentUpdate(nextProps) { 9 return !isEqual(this.props, nextProps); 10 } 11 render() { 12 // ... 13 } 14}
Or like Hight ordered component
1const performance = require("@luchanso/react-fast-compare").performance; 2 3class ExpensiveRenderer extends React.Component { 4 render() { 5 // ... 6 } 7} 8 9export default performance()(ExpensiveRenderer);
Do I Need shouldComponentUpdate?
What's faster than a really fast deep comparison? No deep comparison at all.
—This Readme
Deep checks in React's shouldComponentUpdate should not be used blindly.
First, see if a
PureComponent
would work for you. If it won't (if you need deep checks), it's wise to make
sure you've correctly indentified the bottleneck in your application by
profiling the performance.
After you've determined that you do need deep equality checks and you've
identified the minimum number of places to apply them, then this library may
be for you! For more information about making your app faster, check out the
Optimizing Performance
section of the React docs.
Benchmarking this Library
All tests carried out locally on a MacBook. The absolute values are much less important than the relative differences between packages.
Benchmarking source can be found here. Each "operation" consists of running all relevant tests. The React benchmark uses both the generic tests and the react tests; these runs will be slower simply because there are more tests in each operation.
Generic Data
react-fast-compare x 207,503 ops/sec ±0.54% (92 runs sampled)
fast-deep-equal x 195,006 ops/sec ±0.70% (91 runs sampled)
lodash.isEqual x 43,778 ops/sec ±0.55% (91 runs sampled)
nano-equal x 198,036 ops/sec ±0.37% (95 runs sampled)
shallow-equal-fuzzy x 173,023 ops/sec ±0.59% (95 runs sampled)
fastest: react-fast-compare
react-fast-compare and fast-deep-equal should be the same speed for these
tests; any difference is just noise. react-fast-compare won't be faster than
fast-deep-equal, because it's based on it.
React and Generic Data
react-fast-compare x 187,628 ops/sec ±0.58% (93 runs sampled)
fast-deep-equal x 477 ops/sec ±0.55% (91 runs sampled)
lodash.isEqual x 35,100 ops/sec ±0.16% (95 runs sampled)
nano-equal x 468 ops/sec ±0.53% (94 runs sampled)
shallow-equal-fuzzy x 684 ops/sec ±0.43% (92 runs sampled)
fastest: react-fast-compare
Three of these packages cannot handle comparing React elements (which are
circular): fast-deep-equal, nano-equal, and shallow-equal-fuzzy.
Running Benchmarks
1$ yarn install 2$ yarn run benchmark
fast-deep-equal Versioning
react-fast-compare@3.0.0 tracks fast-deep-equal@2.0.1
License
Contributing
Please see our contributions guide.
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 0/30 approved changesets -- score normalized to 0
Reason
0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
Reason
no SAST tool detected
Details
- Warn: no pull requests merged into dev branch
Reason
no effort to earn an OpenSSF best practices badge detected
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
project is not fuzzed
Details
- Warn: no fuzzer integrations found
Reason
branch protection not enabled on development/release branches
Details
- Warn: branch protection not enabled for branch 'master'
Reason
147 existing vulnerabilities detected
Details
- Warn: Project is vulnerable to: GHSA-6chw-6frg-f759
- 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-42xw-2xvc-qx8m
- Warn: Project is vulnerable to: GHSA-4w2v-q235-vp99
- Warn: Project is vulnerable to: GHSA-cph5-m8f7-6c5x
- Warn: Project is vulnerable to: GHSA-wf5p-g6vw-rhxx
- Warn: Project is vulnerable to: GHSA-jr5f-v2jv-69x6
- Warn: Project is vulnerable to: GHSA-67hx-6x53-jw92
- Warn: Project is vulnerable to: GHSA-pp7h-53gx-mx7r
- Warn: Project is vulnerable to: GHSA-qwcr-r2fm-qrc7
- 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-x9w5-v3q2-3rhw
- Warn: Project is vulnerable to: GHSA-hc9w-4p87-j549
- Warn: Project is vulnerable to: GHSA-wg6g-ppvx-927h
- Warn: Project is vulnerable to: GHSA-c6rq-rjc2-86v2
- Warn: Project is vulnerable to: GHSA-pxg6-pf52-xh8x
- Warn: Project is vulnerable to: GHSA-3xgq-45jj-v275
- Warn: Project is vulnerable to: GHSA-rq8g-5pc5-wrhr
- Warn: Project is vulnerable to: GHSA-9vvw-cc9w-f27h
- Warn: Project is vulnerable to: GHSA-gxpj-cx7g-858c
- Warn: Project is vulnerable to: GHSA-w573-4hg7-7wgq
- Warn: Project is vulnerable to: GHSA-hr2v-3952-633q
- Warn: Project is vulnerable to: GHSA-9j49-mfvp-vmhm
- Warn: Project is vulnerable to: GHSA-h6ch-v84p-w6p9
- Warn: Project is vulnerable to: GHSA-vh7m-p724-62c2
- Warn: Project is vulnerable to: GHSA-r9p9-mrjm-926w
- Warn: Project is vulnerable to: GHSA-434g-2637-qmqr
- Warn: Project is vulnerable to: GHSA-49q7-c7j4-3p7m
- Warn: Project is vulnerable to: GHSA-977x-g7h5-7qgw
- Warn: Project is vulnerable to: GHSA-f7q4-pwc6-w24p
- Warn: Project is vulnerable to: GHSA-fc9h-whq2-v747
- Warn: Project is vulnerable to: GHSA-vjh7-7g9h-fjfh
- Warn: Project is vulnerable to: GHSA-j4f2-536g-r55m
- Warn: Project is vulnerable to: GHSA-r7qp-cfhv-p84w
- Warn: Project is vulnerable to: GHSA-qrmc-fj45-qfc2
- Warn: Project is vulnerable to: GHSA-74fj-2j2h-c42q
- Warn: Project is vulnerable to: GHSA-pw2r-vq6v-hr8c
- Warn: Project is vulnerable to: GHSA-jchw-25xp-jwwc
- Warn: Project is vulnerable to: GHSA-cxjh-pqwp-8mfp
- 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-qh2h-chj9-jffq
- 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-6x33-pw7p-hmpq
- Warn: Project is vulnerable to: GHSA-86wf-436m-h424
- Warn: Project is vulnerable to: GHSA-8w57-jfpm-945m
- Warn: Project is vulnerable to: GHSA-8g7p-74h8-hg48
- Warn: Project is vulnerable to: GHSA-pc5p-h8pf-mvwp
- Warn: Project is vulnerable to: GHSA-qqgx-2p2h-9c37
- Warn: Project is vulnerable to: GHSA-78xj-cgh5-2h22
- Warn: Project is vulnerable to: GHSA-2p57-rm9w-gvfp
- 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-282f-qqgm-c34q
- Warn: Project is vulnerable to: GHSA-675m-85rw-j3w4
- Warn: Project is vulnerable to: GHSA-7x7c-qm48-pq9c
- Warn: Project is vulnerable to: GHSA-rc3x-jf5g-xvc5
- Warn: Project is vulnerable to: GHSA-6c8f-qphg-qjgp
- Warn: Project is vulnerable to: GHSA-76p3-8jx3-jpfq
- Warn: Project is vulnerable to: GHSA-3rfm-jhwj-7488
- Warn: Project is vulnerable to: GHSA-hhq3-ff78-jv3g
- Warn: Project is vulnerable to: GHSA-jf85-cpcp-j695
- 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-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-82v2-mx6x-wq7q
- Warn: Project is vulnerable to: GHSA-4xcv-9jjx-gfj3
- 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-fhjf-83wg-r2j9
- Warn: Project is vulnerable to: GHSA-w9mr-4mfr-499f
- Warn: Project is vulnerable to: GHSA-4c7m-wxvm-r7gc
- Warn: Project is vulnerable to: GHSA-pch5-whg9-qr2r
- Warn: Project is vulnerable to: GHSA-r683-j2x4-v87g
- Warn: Project is vulnerable to: GHSA-48ww-j4fc-435p
- Warn: Project is vulnerable to: GHSA-hwqf-gcqm-7353
- Warn: Project is vulnerable to: GHSA-9h6g-pr28-7cqp
- Warn: Project is vulnerable to: GHSA-6fx8-h7jm-663j
- Warn: Project is vulnerable to: GHSA-hj48-42vr-x3v9
- Warn: Project is vulnerable to: GHSA-9wv6-86v2-598j
- Warn: Project is vulnerable to: GHSA-h7cp-r72f-jxh6
- Warn: Project is vulnerable to: GHSA-v62p-rq8g-8h59
- Warn: Project is vulnerable to: GHSA-hrpp-h998-j3pp
- Warn: Project is vulnerable to: GHSA-6g33-f262-xjp4
- Warn: Project is vulnerable to: GHSA-35q2-47q7-3pc3
- Warn: Project is vulnerable to: GHSA-p8p7-x288-28g6
- Warn: Project is vulnerable to: GHSA-hjp8-2cm3-cc45
- Warn: Project is vulnerable to: GHSA-c2qf-rxjj-qqgw
- Warn: Project is vulnerable to: GHSA-h9rv-jmmf-4pgx
- Warn: Project is vulnerable to: GHSA-hxcc-f52p-wc94
- Warn: Project is vulnerable to: GHSA-4g88-fppr-53pp
- Warn: Project is vulnerable to: GHSA-4jqc-8m5r-9rpr
- Warn: Project is vulnerable to: GHSA-g4rg-993r-mgx7
- Warn: Project is vulnerable to: GHSA-fxwf-4rqh-v8g3
- Warn: Project is vulnerable to: GHSA-25hc-qcg6-38wj
- Warn: Project is vulnerable to: GHSA-xfhh-g9f5-x4m4
- Warn: Project is vulnerable to: GHSA-qm95-pgcg-qqfq
- Warn: Project is vulnerable to: GHSA-cqmj-92xf-r6r9
- Warn: Project is vulnerable to: GHSA-vx3p-948g-6vhq
- 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-f523-2f5j-gfcg
- Warn: Project is vulnerable to: GHSA-72xf-g2v4-qvf3
- Warn: Project is vulnerable to: GHSA-884p-74jh-xrg2
- Warn: Project is vulnerable to: GHSA-j7fq-p9q7-5wfv
- Warn: Project is vulnerable to: GHSA-xc7v-wxcw-j472
- Warn: Project is vulnerable to: GHSA-662x-fhqg-9p8v
- Warn: Project is vulnerable to: GHSA-394c-5j6w-4xmx
- Warn: Project is vulnerable to: GHSA-78cj-fxph-m83p
- Warn: Project is vulnerable to: GHSA-fhg7-m89q-25r3
- Warn: Project is vulnerable to: GHSA-cf4h-3jhx-xvhq
- Warn: Project is vulnerable to: GHSA-mgfv-m47x-4wqp
- Warn: Project is vulnerable to: GHSA-wr3j-pwj9-hqq6
- Warn: Project is vulnerable to: GHSA-3h5v-q93c-6h6q
- Warn: Project is vulnerable to: GHSA-72mh-269x-7mh5
- Warn: Project is vulnerable to: GHSA-h4j5-c7cj-74xg
- Warn: Project is vulnerable to: GHSA-c4w7-xm78-47vh
- Warn: Project is vulnerable to: GHSA-p9pc-299p-vxgp
Score
1.7
/10
Last Scanned on 2025-07-07
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