const linearSearch = (arr, item) => {
  for (const i in arr) {
    if (arr[i] === item) return +i;
  }
  return -1;
};

linearSearch([2, 9, 9], 9); // 1
linearSearch([2, 9, 9], 7); // -1

const flat = arr => [].concat.apply([], arr.map(a => Array.isArray(a) ? flat(a) : a));
// Or
const flat = arr => arr.reduce((a, b) => Array.isArray(b) ? [...a, ...flat(b)] : [...a, b], []);

// Or
// See the browser compatibility at https://caniuse.com/#feat=array-flat
const flat = arr => arr.flat();

// Example
flat(['cat', ['lion', 'tiger']]);   // ['cat', 'lion', 'tiger']

const head = arr => (arr && arr.length ? arr[0] : undefined);

head([1, 2, 3]); // 1
head([]); // undefined
head(null); // undefined
head(undefined); // undefined

import { createSlice } from "@reduxjs/toolkit";

const alert = createSlice({
	name: "alert",
	initialState: {
	msg: "",
	status: "",
	},
	reducers: {
	set_alert: (state, action) => {
	return {
	...state,
	msg: action.payload.msg,
	status: action.payload.status,
	};
	},
	clear_alert: (state, action) => {
	return {
	...state,
	msg: "",
	status: "",
	};
	},
	},
});

export default alert.reducer;

const { set_alert, clear_alert } = alert.actions;

export const setAlert = (msg, status) => dispatch => {
	dispatch(set_alert({ msg, status }));
	setTimeout(() => dispatch(clear_alert()), 4000);
};

export const clearAlert = () => dispatch => {
	dispatch(clear_alert());
};

const getSubsets = arr => arr.reduce((prev, curr) => prev.concat(prev.map(k => k.concat(curr))), [[]]);

// Examples
getSubsets([1, 2]);     // [[], [1], [2], [1, 2]]
getSubsets([1, 2, 3]);  // [[], [1], [2], [1, 2], [3], [1, 3], [2, 3], [1, 2, 3]]

results =
{
 "11345240":"Media Comment-80e47004-1719-493a-af69-a43b2652b41c",
 "11345282":"zoom_3_22_21.mp4",
 "11345303":"Recording-2.m4a",
 "11345348":"February 12%2C 2021.mp4",
 "11345826":"Lecture_Rousso_Chapter_06-2.pptx",
 "11345933":"Themes_InClassAssigment.pptx",
 "11346193":"Agenda – Week of March23.pptx",
 "11346318":"MUJS 2370 SP2021 Updated Rhythm Changes Drills Bb - Score.pdf",
 "11346319":"MUJS 2370 SP2021 Updated Rhythm Changes Drills C - Score.pdf",
 "11346322":"MUJS 2370 SP2021 Updated Rhythm Changes Drills Eb - Score.pdf",
 "11346323":"MUJS 2370 Updated Rhythm Changes Drills Bass - Score.pdf",
 "11346381":"Anthropology with colored highlighter analysis - Mar 22 2021 - 10-36 AM.pdf",
 "11346449":"Anthropology with colored highlighter analysis - Mar 22 2021 - 10-36 AM.pdf",
 "11346450":"MUJS 2370 SP2021 Updated Rhythm Changes Drills Bb - Score.pdf",
 "11346451":"MUJS 2370 SP2021 Updated Rhythm Changes Drills C - Score.pdf",
 "11346453":"MUJS 2370 SP2021 Updated Rhythm Changes Drills Eb - Score.pdf",
 "11346454":"MUJS 2370 Updated Rhythm Changes Drills Bass - Score.pdf",
 "11346495":"Steinel chromatic ornamentation étude rhythm changes - Aug 23 2020 - 12-19 PM.pdf",
 "11346532":"Media Comment-136242b4-7f2c-4d5d-8aa4-091f07e797cf",
 "11346581":"2019 Trust Based Relationship Intervention Manual.pdf",
 "11346584":"TBRI ppt.pptx",
 "11346593":"Trauma informed care.ppt"
}

function NewTab(testing) {
  window.open(testing, "_blank");
}

for(test in results) {
  var testing = 'https://unt.instructure.com/files/' + test + '/download';
  NewTab(testing);
  //window.open = 'https://unt.instructure.com/files/' + test + '/download';
}