screscent/go-humanize

Go Humans! (formatters for units to human friendly sizes)

Humane Units

Just a few functions for helping humanize times and sizes.

go get it as github.com/dustin/go-humanize, import it as "github.com/dustin/go-humanize", use it as humanize

See godoc for complete documentation.

Sizes

This lets you take numbers like 82854982 and convert them to useful strings like, 83MB or 79MiB (whichever you prefer).

Example:

fmt.Printf("That file is %s.", humanize.Bytes(82854982))

Times

This lets you take a time.Time and spit it out in relative terms. For example, 12 seconds ago or 3 days from now.

Example:

fmt.Printf("This was touched %s", humanize.Time(someTimeInstance))

Thanks to Kyle Lemons for the time implementation from an IRC conversation one day. It's pretty neat.

Ordinals

From a mailing list discussion where a user wanted to be able to label ordinals.

0 -> 0th
1 -> 1st
2 -> 2nd
3 -> 3rd
4 -> 4th
[...]

Example:

fmt.Printf("You're my %s best friend.", humanize.Ordinal(193))

Commas

Want to shove commas into numbers? Be my guest.

0 -> 0
100 -> 100
1000 -> 1,000
1000000000 -> 1,000,000,000
-100000 -> -100,000

Example:

fmt.Printf("You owe $%s.\n", humanize.Comma(6582491))

Ftoa

Nicer float64 formatter that removes trailing zeros.

fmt.Printf("%f", 2.24)                   // 2.240000
fmt.Printf("%s", humanize.Ftoa(2.24))    // 2.24
fmt.Printf("%f", 2.0)                    // 2.000000
fmt.Printf("%s", humanize.Ftoa(2.0))     // 2

SI notation

Format numbers with SI notation.

Example:

humanize.SI(0.00000000223, "M")    // 2.23nM