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//Explanation:
//Constructor: Accepts an initialValue parameter to set the initial data structure (empty array or object). If the key doesn't exist in local storage, it initializes it with this value.
//getStoredData: Returns the stored data or the initialValue if the key doesn't exist.
//addItem, updateItem, deleteItem: Methods are updated to handle the initial data structure correctly.
//Example usage: Demonstrates the usage of the class with both array and object initial values.

class LocalStorageManager {
    constructor(storageKey, initialValue = {}) {
        this.storageKey = storageKey;

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class DynamicForm {
  constructor(keys, saveFunction) {
    this.keys = keys;
    this.saveFunction = saveFunction;
  }

  render() {
    const overlay = document.createElement('div');
    overlay.id = 'overlay';
    overlay.className = 'fixed inset-0 bg-gray-800 bg-opacity-75 flex justify-center items-center';

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JSON Puller - Google Apps Script

Transforms the data of a given Spreadsheet Sheet to JSON.

• The frozen rows are taken as keys for the JSON.
• The data taken for the values is only that after the frozen rows

Set up:

exportJSON(Spreadsheet) - transforms the data in the given sheet to JSON.

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<div className='delete-button' onClick={() => { if (window.confirm('Are you sure you wish to delete this item?')) this.onCancel(item) } } />

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// Original: https://mashe.hawksey.info/2014/07/google-sheets-as-a-database-insert-with-apps-script-using-postget-methods-with-ajax-example/

// Usage
//  1. Enter sheet name where data is to be written below
var sheetName = 'Users'      
//  2. Run > setup
//
//  3. Publish > Deploy as web app 
//    - enter Project Version name and click 'Save New Version' 
//    - set security level and enable service (most likely execute as 'me' and access 'anyone, even anonymously) 

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import {
  createContext,
  PropsWithChildren,
  useContext,
  useEffect,
  useRef,
  useState,
} from "react";

// RESOURCES:

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// upload.js, from https://github.com/googledrive/cors-upload-sample
// Contributors Steve Bazyl, Mike Procopio, Jeffrey Posnick, Renaud Sauvain
// License: Apache 2.0 http://www.apache.org/licenses/LICENSE-2.0
//
// Implements Resumable Upload for Google Drive as described by
// https://developers.google.com/drive/v3/web/resumable-upload
//
// Modified by Paul Brewer, Economic and Financial Technology Consulting LLC
// Nov. 1 2017
//  1. use Google Drive API V3 instead of V2

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Overview

This collection of files serves as a simple static demonstration of how to post to a google spreadsheet from an external html <form> following the example by Martin Hawksey

Run example

You should be able to just open index.html in your browser and test locally.

However if there are some permissions errors you can make a quick html server with python. Open terminal and cd to the directory where the gist files are located and enter python -m SimpleHTTPServer. By default this creates a local server at localhost:8000

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// Includes functions for exporting active sheet or all sheets as JSON object (also Python object syntax compatible).
// Tweak the makePrettyJSON_ function to customize what kind of JSON to export.

var FORMAT_ONELINE   = 'One-line';
var FORMAT_MULTILINE = 'Multi-line';
var FORMAT_PRETTY    = 'Pretty';

var LANGUAGE_JS      = 'JavaScript';
var LANGUAGE_PYTHON  = 'Python';

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function columnToLetter(column)
{
var temp, letter = ”;
while (column > 0)
{
temp = (column – 1) % 26;
letter = String.fromCharCode(temp + 65) + letter;
column = (column – temp – 1) / 26;
}
return letter;