@ysfe/array-groupby

数组分组函数(array group by)

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> 1. yarn add @ysfe/array-groupby or npm install @ysfe/array-groupby --save

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``
// import for commonJs
import { GroupBy, addToProperty } from "array-grouping";

// use
GroupBy([your array],(a:T,b:T):boolean => { return a == b; // diff func. })

// 挂载到原型链 - 使用方法参考 array.sort()

addToProperty() // 添加到原型

[].groupBy((a,b)=> {
return a.id == b.id
})

`

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#### 1. use GroupBy demo.

`
import { GroupBy } from "array-grouping";

// example - 1 - grouping array

let arr1 = new Array(20).fill(0).map(n => Math.ceil(Math.random() * 100));
// exec
let result = GroupBy(arr1, (a, b) => a == b);
// print
console.log(result);

``