41 lines
829 B
Go
41 lines
829 B
Go
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package utility
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import (
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"fmt"
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"strconv"
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"strings"
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)
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// FormatNumberShort compresses a number into as short a string as possible (e.g. "1.2K" when it gets into the thousands).
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func FormatNumberShort(value int64) string {
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// Under 1,000?
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if value < 1000 {
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return fmt.Sprintf("%d", value)
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}
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// Start to bucket it.
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var (
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thousands = float64(value) / 1000
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millions = float64(thousands) / 1000
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billions = float64(millions) / 1000
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)
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formatFloat := func(v float64) string {
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s := strconv.FormatFloat(v, 'f', 1, 64)
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if strings.HasSuffix(s, ".0") {
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return strings.Split(s, ".")[0]
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}
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return s
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}
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if thousands < 1000 {
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return fmt.Sprintf("%sK", formatFloat(thousands))
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}
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if millions < 1000 {
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return fmt.Sprintf("%sM", formatFloat(millions))
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}
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return fmt.Sprintf("%sB", formatFloat(billions))
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}
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