ByStr~Sort

Does sort your arrays of T object following a verbose sortString 🙂 .

---

Getting started 🚀

1. install it

   $ npm install -D bystr-sort

   and require it

   const { sort } = require( "bystr-sort" );

2. define a sort string: Assuming you have an array of T object like this:

   const greetings : T[] = [ 
       { order:14 , greet:"Hello" ,        level:"medium" ,   lang:"en" },
       { order:3 ,  greet:"yo" ,           level:"familiar" , lang:"fr" },
       { order:5 ,  greet:"selamat pagi" , level:"medium" ,   lang:"id" }
   ];

   A valid sort string could be

   const sortString = `
        by greet of a greater than b's then
        by level of a < than b's
   `;

3. sort your T[] :

   const sorted : T[] = sort( greetings , sortString );

Sortstring

• it is a string used to sort your array of T objects.
• It gives you the ability to set multiple sorts by using the then keyword at the end of a sort sentence. a sort sentence is matches this regex pattern

  by {colA|colB|colC|...|colN} of a[|b] lower[|greater,<,>] than b[|a]'s [then]

• The by keyword starts the sentence and a's or b's ends it. Then is used to chain the next sort sentence
• To invert the sort direction, you can play with keywords lower, greater, >, < but also with a, b order in the sentence. So: by ... b ... > ... a's is also valid. Because why not ?

Note

• further updates will allow the case insensitiveness of the whole sort sentence ...

---

Bonus 🎈

there is a littel more ...

parameters

Assuming the signature for sort is like the following:

const sort = (
    objectArray: any[] ,
    sortString = "" ,
    crashOnError = false ,
    logfn = console.error
): any[]

• crashOnError

  • When set to true : It gives you the abbility to throw an exception when your sort string is invalid. You will be prompted with hints to fix your problem.

  • When set to false : It will prompt the error in the console.

• logfn Use this to check errors within your tests.