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new StringBuilder(hi).reverse().toString()
let nums = [1,2,3,1]var containsDuplicate = function(nums) {let obj = {};for(let i =0; i< nums.length; i++){if(obj[nums[i]]){obj[nums[i]] += 1;return true;}else{obj[nums[i]] = 1;}}return false;};console.log(containsDuplicate(nums));
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());};
console.log("hello world")
// 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));
if (process.env.NODE_ENV === "production") {app.use(express.static("client/build"));app.get("*", (req, res) => {res.sendFile(path.resolve(__dirname, "client", "build", "index.html"));});}