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Programming-Idioms

History of Idiom 117 > diff from v8 to v9

Edit summary for version 9 by :
[Go] +DocURL spec of builtin func len
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Version 8

2016-01-24, 02:23:29

Version 9

2016-01-24, 20:32:11

Idiom #117 Get list size

Set n to the number of elements of list x.

Idiom #117 Get list size

Set n to the number of elements of list x.

Code 
n := len(x)
Code 
n := len(x)
Comments bubble
x is a slice or an array.
Comments bubble
x is a slice or an array.
Doc URL
https://golang.org/pkg/builtin/#len
Demo URL
http://play.golang.org/p/e-8WVe52yM
Demo URL
http://play.golang.org/p/e-8WVe52yM