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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

contract DeleteNumberAtIndexChallenge {
    struct Number {
        uint value;
    }
    
    Number[] public numbers;
    

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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

// Inspired By: https://solidity-by-example.org/hacks/re-entrancy/

/**
 * @title EtherStore
 * @dev A simple contract for depositing and withdrawing ETH. 
 * Vulnerable to re-entrancy attack.
 */

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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import "./ERC20.sol";
import "./interfaces/IERC20.sol";

contract TokenLockers is ERC20 {
    error InsufficentFunds();
    error InsufficentInputValue();
    error InvalidLocktime();

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 <form>
        <h3>FORM</h3>
        <label>TITLE</label>
        <input type="title" id="title" placeholder="Title...">
        <label>AUTHOR</label>
        <input type="title" id="author" placeholder="Author...">
        <label>ISBN</label>
        <input type="title" id="isbn" placeholder="Isnb...">
        <button>Submit</button>
</form>

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function get(url) {
  // Return a new promise.
  return new Promise(function(resolve, reject) {
    // Do the usual XHR stuff
    var req = new XMLHttpRequest();
    req.open('GET', url);

    req.onload = function() {
      // This is called even on 404 etc
      // so check the status

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//How to use it in a JS file
document.addEventListener('DOMContentLoaded', main)

const kinvey = new Kinvey('kid_BkYBymjvd', 'ed0eed3599fa4d5d9d062fae8755f43c');

const data = {
    username: 'guest',
    password: 'guest'
}

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class httpClient {
    // Get Request 
    get(url) {
        return new Promise((resolve, reject) => {
            fetch(url)
                .then((res) => {
                    if (res.ok) {
                        return res.json();
                    }
                }).then(data => resolve(data))

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function linkedList(arr) {
    return arr.reduceRight((next, value) => ({ value, next }), null);
}

let l = [3, 1, 2, 3, 4, 5];

console.log(linkedList(l));

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//Algorithms - Linked List Principles
//Language: JavaScript

class Node {
    constructor(data, next = null) {
        this.data = data;
        this.next = next;
    }
}

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//Unit testing template
//Language: JavaScript
//Packages: Mocha, Chai


//Javascript file
module.exports = subSum;


//JavaScript test file