unique

159 bytes

since v12.1.0

使用方法

给定一个项目数组——以及可选的用于确定其身份的函数——返回一个没有重复项的新数组。

该函数保持项目的原始顺序，保留第一次出现的项目并省略重复项。

import * as _ from "radashi";

const fish = [
  {
    name: "Marlin",
    weight: 105,
    source: "ocean",
  },
  {
    name: "Salmon",
    weight: 22,
    source: "river",
  },
  {
    name: "Salmon",
    weight: 23,
    source: "stream",
  },
];

_.unique(fish, (f) => f.name);
// [
//     { name: 'Marlin', weight: 105, source: 'ocean' },
//     { name: 'Salmon', weight: 22, source: 'river' }
// ]