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3 Commits

Author SHA1 Message Date
Josh Yan
5dc5a295bf added testcase 2024-06-03 17:28:05 -07:00
Josh Yan
e21e6b2a33 added testcase 2024-06-03 17:27:38 -07:00
Josh Yan
a240ea3367 humanNumbers formats to 3 digits, added trillion case for future 2024-06-03 17:26:02 -07:00
2 changed files with 27 additions and 17 deletions

View File

@ -2,32 +2,41 @@ package format
import (
"fmt"
"math"
)
const (
Thousand = 1000
Million = Thousand * 1000
Billion = Million * 1000
Trillion = Billion * 1000
)
func HumanNumber(b uint64) string {
switch {
case b >= Trillion:
number := float64(b) / Trillion
return fmt.Sprintf("%sT", DecimalPlace(number))
case b >= Billion:
number := float64(b) / Billion
if number == math.Floor(number) {
return fmt.Sprintf("%.0fB", number) // no decimals if whole number
}
return fmt.Sprintf("%.1fB", number) // one decimal if not a whole number
return fmt.Sprintf("%sB", DecimalPlace(number))
case b >= Million:
number := float64(b) / Million
if number == math.Floor(number) {
return fmt.Sprintf("%.0fM", number) // no decimals if whole number
}
return fmt.Sprintf("%.2fM", number) // two decimals if not a whole number
return fmt.Sprintf("%sM", DecimalPlace(number))
case b >= Thousand:
return fmt.Sprintf("%.0fK", float64(b)/Thousand)
number := float64(b) / Thousand
return fmt.Sprintf("%sK", DecimalPlace(number))
default:
return fmt.Sprintf("%d", b)
}
}
func DecimalPlace(number float64) string {
switch {
case number >= 100:
return fmt.Sprintf("%.0f", number)
case number >= 10:
return fmt.Sprintf("%.1f", number)
default:
return fmt.Sprintf("%.2f", number)
}
}

View File

@ -13,14 +13,15 @@ func TestHumanNumber(t *testing.T) {
testCases := []testCase{
{0, "0"},
{1000000, "1M"},
{1000000, "1.00M"},
{125000000, "125M"},
{500500000, "500.50M"},
{500550000, "500.55M"},
{1000000000, "1B"},
{2800000000, "2.8B"},
{2850000000, "2.9B"},
{1000000000000, "1000B"},
{500500000, "500M"},
{500550000, "501M"},
{1000000000, "1.00B"},
{2800000000, "2.80B"},
{2850000000, "2.85B"},
{28550000000, "28.6B"},
{1000000000000, "1.00T"},
}
for _, tc := range testCases {