turn public in 26/02/2022
I was supposed to create a list of the days of the week from which an event would happen and I needed something simple. I didn't find anything that pleased me, so I noticed that the binaries could help me, and I hope they help you too, this was all very new to me. , I did not believe this would be possible only with NxN relations to solve my problem, so with the help of colleagues and friends, we identified that operator BITWISE would solve our problem with the days of the week and a special holiday day.
The library is given a number that is a sum of the active binaries relative to the table.
Table.
The days of the week are represented by each column of the table, the values being Sunday = 1, Monday = 2, Tuesday = 4, Wednesday = 8 ... From this it is possible to use the bitwise operator to divide this integer, thus extracting the active days of the week.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Bitwise_AND
$ npm install --save weeksjs
import React, { useEffect } from 'react';
import weeksjs from 'weeksjs';
export default props => {
useEffect(() => {
// ---------- Function getDaysOfWeek ----------
console.log(weeksjs.getDaysOfWeek());
// {
// sunday: { bin: 1 }
// monday: { bin: 2 }
// tuesday: { bin: 4 }
// wednesday: { bin: 8 }
// thursday: { bin: 16 }
// friday: { bin: 32 }
// saturday: { bin: 64 }
// holiday: { bin: 128 }
//}
// ---------- Function intToWeek ----------
console.log(weeksjs.intToWeek(255);
// {
// sunday: true
// monday: true
// tuesday: true
// wednesday: true
// thursday: true
// friday: true
// saturday: false
// holiday: false
// }
console.log(weeksjs.weekToInt({
monday: true,
wednesday: true,
saturday: true
}));
// Return of Fuction is 74
console.log(weeksjs.weekToInt(["monday", "wednesday", "saturday"]));
}, []);
return null;
}<!DOCTYPE html>
<html>
<head>
<meta charest="utf-8" />
<title>WeeksJS!</title>
</head>
<script src="https://cdn.jsdelivr.net/npm/weeksjs@1.0.2/dist/weeksjs.umd.js">
</script>
<script>
// ---------- Function getDaysOfWeek ----------
console.log(weeksjs.getDaysOfWeek());
// {
// sunday: { bin: 1 }
// monday: { bin: 2 }
// tuesday: { bin: 4 }
// wednesday: { bin: 8 }
// thursday: { bin: 16 }
// friday: { bin: 32 }
// saturday: { bin: 64 }
// holiday: { bin: 128 }
// };
// ---------- Function intToWeek ----------
console.log(weeksjs.intToWeek(1+ 2 + 4 + 8 + 16 + 32, {
array: true
}));
// {
// sunday: true
// monday: true
// tuesday: true
// wednesday: true
// thursday: true
// friday: true
// saturday: false
// holiday: false
// }
console.log(weeksjs.weekToInt({
monday: true,
wednesday: true,
saturday: true
}));
// Return of Fuction is 74
console.log(weeksjs.weekToInt(["monday", "wednesday", "saturday"]));
</script>
</html>###Tables
| Functions | Description |
|---|---|
getDaysOfWeek() |
return [ monday: { bin: 2 }, ..., holiday: { bin: 128 }] |
intToWeek( sum, options ) |
Pass as the sum of your binaries and receive an object representing the days of the week { "sunday" : true, monday:true,.. } |
| `weekToInt( object |
| intToWeek | Description |
|---|---|
sum |
The binary sum of the selected days |
options.array |
set true if response of funcions is an array |
| weekToInt | Description |
|---|---|
object |
{ { "monday": true, "holiday": true} } |
array |
["monday", "holiday"] |
Olá Ônibus - Application for transport public in Campo Mourão City. I an application for my hometown, we used the technology implemented in this utility library, to represent which days of the week the bus would pass at that time for that line of route, it was a leaner way to store the information and apparently more cohesive and easy to maintain and interpret. Through this project I realized that this could help other similar cases.
End, Thank you for getting here