nidhi-canopas

<script>
   beforeUnmount() {
    console.log("I'm beforeUnmount hook");
    this.$refs.img.width = 0;
  },
</script>

nidhi-canopas

<script>
  unmounted() {
    console.log("I'm unmounted hook");
    this.$refs.img.width = 0;
  },
</script>

nidhi-canopas

<template>
  <div ref="greeting">Hello readers !</div>
  <img ref="img" :src="img" alt="image" width="200" />
  <span>comment/uncomment me to see beforeUpdate/updated hook's reactivity</span>
</template>

<script>
export default {
  setup() {
    console.log("I'm setup hook");

nidhi-canopas

1. // check whether element exists in an array

function checkIndexOf() {
    let emojis:string[] = ['😎️', '🤓️', '🤩️', '😇️']
    console.log(emojis.indexOf('🤩️') !== -1)
}

// output:
true

nidhi-canopas

func AddDays(t time.Time, days int) time.Time {
   fmt.Println("currentTime: ", t)
   
   // AddDate(years int, months int, days int)
   newTime := t.AddDate(0, 0, days) 
   
   fmt.Println("newTime: ", newTime)
    
   return newTime
}

nidhi-canopas

func StartOfDay(t time.Time, timezone string) time.Time {
   location, _ := time.LoadLocation(timezone)
   year, month, day := t.In(location).Date()
   
   fmt.Println("currentTime: ", t)
   
   dayStartTime := time.Date(year, month, day, 0, 0, 0, 0, location)
   
   fmt.Println("StartOfDay: ", dayStartTime)
    

nidhi-canopas

func EndOfDay(t time.Time, timezone string) time.Time {
   location, _ := time.LoadLocation(timezone)
   year, month, day := t.In(location).Date()
   
   fmt.Println("currentTime: ", t)
   
   dayEndTime := time.Date(year, month, day, 23, 59, 59, 0, location)
   
   fmt.Println("EndOfDay: ", dayEndTime)
   

nidhi-canopas

func IsSameDay(first time.Time, second time.Time) bool {
   return first.YearDay() == second.YearDay() && first.Year() == second.Year()
}


/* Check if given two days are same */

func main() {
   location, _ := time.LoadLocation("Asia/Kolkata")
   first := time.Date(2022, time.July, 01, 12, 30, 20, 0, location)

nidhi-canopas

func DiffInDays(start time.Time, end time.Time) int {
   return int(end.Sub(start).Hours() / 24)
}

/* difference between two timestamps */
func main() {
   location, _ := time.LoadLocation("Asia/Kolkata")
   start := time.Date(2022, time.July, 01, 12, 30, 20, 0, location)
   end := time.Date(2022, time.July, 31, 15, 0, 50, 0, location)
   fmt.Println("Days between start and end: ", DiffInDays(start, end))

nidhi-canopas

func IsLeapYear(year int) bool {
   return year%4 == 0 && year%100 != 0 || year%400 == 0
}


/* check for leap year */

fmt.Println("2020 is leap year: ", IsLeapYear(2020))

//output: