m3talstorm / hashcode Goto Github PK
View Code? Open in Web Editor NEW:key: A javascript module for generating hashcodes of objects
License: MIT License
:key: A javascript module for generating hashcodes of objects
License: MIT License
This package seems to have a couple issues. First, the 1.0.3
version uploaded to npm
is different than the package here. However, regardless of whether using the hashcode implementation from GitHub or npm, the same bad behavior occurs:
var hc = require('hashcode') // or `require('hashcode').hashCode()` for the npm version
hc.value({"a": "1", "b": "3"}) // Outputs: 944008200
hc.value({"a": "2", "b": "2"}) // Outputs: 944008200
hc.value({"val1": "abc", "val2": "def", "val3": "unchanged"}) // Outputs -330168938
hc.value({"val1": "abb", "val2": "deg", "val3": "unchanged"}) // Outputs -330168938
Take any object with string values, and call its corresponding hashcode hash1
. Now duplicate that object and 'increment' one string value and 'decrement' a different string value. Despite it being a completely different object, this implementation will still output hash1
.
I think the object
method needs to include the result
so far in the call to hash(property + value(obj[property]))
. Even then, hash functions are notoriously difficult to get right, so I don't know if there are other issues with this package.
A declarative, efficient, and flexible JavaScript library for building user interfaces.
๐ Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
The Web framework for perfectionists with deadlines.
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. ๐๐๐
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
We are working to build community through open source technology. NB: members must have two-factor auth.
Open source projects and samples from Microsoft.
Google โค๏ธ Open Source for everyone.
Alibaba Open Source for everyone
Data-Driven Documents codes.
China tencent open source team.