nabanita-sarkar

const {
     isLoading: isAllTodoLoading,
     isError: isAllTodoError,
     data: allTodo,
   } = useQuery("todo/all", () => {
     return axios.post("http://localhost:4000/todo/all", todo)
   })

nabanita-sarkar

const { isLoading, isError, data } = useQuery(
       ["todo/detail", id],
       () => {
         return axios.get(`http://localhost:4000/todo/detail/:${id}`);
       },
       {
         enabled: !!id,
         retry: 1,
         onSuccess: () => {
           // invalidate some query

nabanita-sarkar

// in the component use it just like this
const { isLoading, isError, data } = useGetTodoById(id)

nabanita-sarkar

const { id } = useParams(); // from react-router

const { isLoading, isError, data } = useQuery(
  ["todo/detail", id],
  () => {
    return axios.get(`http://localhost:4000/todo/detail/:${id}`);
  },
  {
    enabled: !!id,
  }

nabanita-sarkar

const { isLoading, isError, data } = useQuery(
  "todo/all",
  () => {
    return axios.get(`http://localhost:4000/todo/all`);
  },
  {
    retry: 1, // or `true` or `false` or e.g. 6
  }
);

nabanita-sarkar

// in todo/all query we are fetching the list of all todos
const { isLoading, isError, data } = useQuery("todo/all", () => {
  return axios.get(`http://localhost:4000/todo/all`)
})

nabanita-sarkar

import { message } from "antd"

const { isLoading, isError, mutateAsync } = useMutation(
  "todo/create",
  () => {
    return axios.post("http://localhost:4000/todo/create", task)
  },
  {
    onSuccess: res => {
      dispatch(setTaskList(res.data.task_list))

nabanita-sarkar

import numpy as np
import matplotlib.pyplot as plt

#Carrier wave c(t)=A_c*cos(2*pi*f_c*t)
#Modulating wave m(t)=A_m*cos(2*pi*f_m*t)
#Modulated wave s(t)=A_c[1+mu*cos(2*pi*f_m*t)]cos(2*pi*f_c*t)

A_c = float(input('Enter carrier amplitude: '))
f_c = float(input('Enter carrier frquency: '))
A_m = float(input('Enter message amplitude: '))