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125 lines
3 KiB
Markdown
125 lines
3 KiB
Markdown
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# Humane Units [](https://travis-ci.org/dustin/go-humanize) [](https://godoc.org/github.com/dustin/go-humanize)
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Just a few functions for helping humanize times and sizes.
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`go get` it as `github.com/dustin/go-humanize`, import it as
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`"github.com/dustin/go-humanize"`, use it as `humanize`.
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See [godoc](https://godoc.org/github.com/dustin/go-humanize) for
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complete documentation.
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## Sizes
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This lets you take numbers like `82854982` and convert them to useful
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strings like, `83 MB` or `79 MiB` (whichever you prefer).
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Example:
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```go
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fmt.Printf("That file is %s.", humanize.Bytes(82854982)) // That file is 83 MB.
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```
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## Times
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This lets you take a `time.Time` and spit it out in relative terms.
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For example, `12 seconds ago` or `3 days from now`.
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Example:
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```go
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fmt.Printf("This was touched %s.", humanize.Time(someTimeInstance)) // This was touched 7 hours ago.
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```
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Thanks to Kyle Lemons for the time implementation from an IRC
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conversation one day. It's pretty neat.
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## Ordinals
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From a [mailing list discussion][odisc] where a user wanted to be able
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to label ordinals.
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0 -> 0th
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1 -> 1st
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2 -> 2nd
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3 -> 3rd
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4 -> 4th
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[...]
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Example:
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```go
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fmt.Printf("You're my %s best friend.", humanize.Ordinal(193)) // You are my 193rd best friend.
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```
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## Commas
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Want to shove commas into numbers? Be my guest.
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0 -> 0
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100 -> 100
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1000 -> 1,000
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1000000000 -> 1,000,000,000
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-100000 -> -100,000
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Example:
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```go
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fmt.Printf("You owe $%s.\n", humanize.Comma(6582491)) // You owe $6,582,491.
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```
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## Ftoa
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Nicer float64 formatter that removes trailing zeros.
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```go
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fmt.Printf("%f", 2.24) // 2.240000
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fmt.Printf("%s", humanize.Ftoa(2.24)) // 2.24
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fmt.Printf("%f", 2.0) // 2.000000
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fmt.Printf("%s", humanize.Ftoa(2.0)) // 2
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```
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## SI notation
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Format numbers with [SI notation][sinotation].
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Example:
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```go
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humanize.SI(0.00000000223, "M") // 2.23 nM
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```
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## English-specific functions
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The following functions are in the `humanize/english` subpackage.
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### Plurals
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Simple English pluralization
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```go
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english.PluralWord(1, "object", "") // object
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english.PluralWord(42, "object", "") // objects
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english.PluralWord(2, "bus", "") // buses
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english.PluralWord(99, "locus", "loci") // loci
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english.Plural(1, "object", "") // 1 object
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english.Plural(42, "object", "") // 42 objects
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english.Plural(2, "bus", "") // 2 buses
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english.Plural(99, "locus", "loci") // 99 loci
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```
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### Word series
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Format comma-separated words lists with conjuctions:
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```go
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english.WordSeries([]string{"foo"}, "and") // foo
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english.WordSeries([]string{"foo", "bar"}, "and") // foo and bar
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english.WordSeries([]string{"foo", "bar", "baz"}, "and") // foo, bar and baz
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english.OxfordWordSeries([]string{"foo", "bar", "baz"}, "and") // foo, bar, and baz
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```
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[odisc]: https://groups.google.com/d/topic/golang-nuts/l8NhI74jl-4/discussion
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[sinotation]: http://en.wikipedia.org/wiki/Metric_prefix
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