Security News
tea.xyz Spam Plagues npm and RubyGems Package Registries
Tea.xyz, a crypto project aimed at rewarding open source contributions, is once again facing backlash due to an influx of spam packages flooding public package registries.
Readme
npm install z
const { matches } = require('z')
(x = 1) =>, (x = null) =>, (x = 'true') =>
(x = {a: 1}) =>, (x = [1, 2]) =>
(x = String) =>, (x = Boolean) =>
(x = Date) =>, (x = Person) =>
(head, tail) =>
, (a, b, c, tail) =>
, etc…const { matches } = require('z')
const person = { name: 'Maria' }
matches(person)(
(x = { name: 'John' }) => console.log('John you are not welcome!'),
(x) => console.log(`Hey ${x.name}, you are welcome!`)
)
//output: `Hey Maria, you are welcome!`
const { matches } = require('z')
const result = matches(1)(
(x = 2) => 'number 2 is the best!!!',
(x = Number) => `number ${x} is not that good`,
(x = Date) => 'blaa.. dates are awful!'
)
console.log(result) // output: number 1 is not that good
To match array content you need create multiple arguments for the match function, such as (a, b, c, tail) => {} , then each variable match each item from array. Note: last variable contains all remaining array items, formally named tail. Examples:
const { matches } = require('z')
matches([1, 2, 3, 4, 5])(
(a, b, c, tail) => 'a = 1, b = 2, c = 3, tail = [4, 5]'
)
matches([1, 2])(
(a, tail) => 'a = 1, b = [2]'
)
matches([1])(
(a, b, tail) => 'Will not match here',
(a = 2, tail = []) => 'Will not match here',
(a = 1, tail = []) => 'Will match here, tail = []'
)
Can be mind blowing if it’s the first time you meet pattern matching, but you are gonna understand it!
const { matches } = require('z')
const compress = (numbers) => {
return matches(numbers)(
(x, y, xs) => x === y
? compress([x].concat(xs))
: [x].concat(compress([y].concat(xs))),
(x, xs) => x // stopping condition
)
}
compress([1, 1, 2, 3, 4, 4, 4]) //output: [1, 2, 3]
FAQs
native pattern matching for javascript
The npm package z receives a total of 250 weekly downloads. As such, z popularity was classified as not popular.
We found that z demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
Security News
Tea.xyz, a crypto project aimed at rewarding open source contributions, is once again facing backlash due to an influx of spam packages flooding public package registries.
Security News
As cyber threats become more autonomous, AI-powered defenses are crucial for businesses to stay ahead of attackers who can exploit software vulnerabilities at scale.
Security News
UnitedHealth Group disclosed that the ransomware attack on Change Healthcare compromised protected health information for millions in the U.S., with estimated costs to the company expected to reach $1 billion.