• Jan 17, 2021 •C S
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const getSearchTerm = delimiter => { let searchTerm = ""; for (let i = 1; i < commands.length - 1; i++) searchTerm = searchTerm + commands[i] + delimiter; searchTerm += commands[commands.length - 1]; return searchTerm; };
• Nov 20, 2022 •Helper
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new StringBuilder(hi).reverse().toString()
• Mar 11, 2021 •C S
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import { configureStore } from "@reduxjs/toolkit"; import { combineReducers } from "redux"; import profile from "./profile"; import auth from "./auth"; import alert from "./alert"; const reducer = combineReducers({ profile, auth, alert, }); const store = configureStore({ reducer }); export default store;
• Nov 19, 2022 •CodeCatch
const countSubstrings = (str, searchValue) => { let count = 0, i = 0; while (true) { const r = str.indexOf(searchValue, i); if (r !== -1) [count, i] = [count + 1, r + 1]; else return count; } }; countSubstrings('tiktok tok tok tik tok tik', 'tik'); // 3 countSubstrings('tutut tut tut', 'tut'); // 4
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// Time Complexity : O(N) // Space Complexity : O(1) var isMonotonic = function(nums) { let isMono = null; for(let i = 1; i < nums.length; i++) { if(isMono === null) { if(nums[i - 1] < nums[i]) isMono = 0; else if(nums[i - 1] > nums[i]) isMono = 1; continue; } if(nums[i - 1] < nums[i] && isMono !== 0) { return false; } else if(nums[i - 1] > nums[i] && isMono !== 1) { return false; } } return true; }; let nums1 = [1,2,2,3] let nums2 = [6,5,4,4] let nums3 = [1,3,2] console.log(isMonotonic(nums1)); console.log(isMonotonic(nums2)); console.log(isMonotonic(nums3));
require("dotenv").config(); const mongoose = require("mongoose"); const db = process.env.MONGO_URI; const connectDB = async () => { try { await mongoose.connect(db, { useNewUrlParser: true, useUnifiedTopology: true, useFindAndModify: false, useCreateIndex: true }); console.log("MongoDB Connected"); } catch (err) { console.error(err.message); } }; module.exports = connectDB;