agora-edu-core/lib/utils/collection.js

Core APIs for building an online classroom

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.iterateSet = exports.iterateMap = void 0;
const iterateMap = (map, processors) => {
  const onFilter = (processors === null || processors === void 0 ? void 0 : processors.onFilter) || (() => true);
  const {
    onMap,
    onReduce
  } = processors || {};
  const list = [];
  let prev = undefined;
  for (const [k, v] of map.entries()) {
    if (onFilter(k, v)) {
      if (onMap) list.push(onMap(k, v));
      if (onReduce) prev = onReduce(prev, k, v);
    }
  }
  return {
    list,
    prev
  };
};
exports.iterateMap = iterateMap;
const iterateSet = (map, processors) => {
  const onFilter = (processors === null || processors === void 0 ? void 0 : processors.onFilter) || (() => true);
  const {
    onMap,
    onReduce
  } = processors || {};
  const list = [];
  let prev = undefined;
  for (const item of map.values()) {
    if (onFilter(item)) {
      if (onMap) list.push(onMap(item));
      if (onReduce) prev = onReduce(prev, item);
    }
  }
  return {
    list,
    prev
  };
};
exports.iterateSet = iterateSet;