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fix a couple of typos.

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add a mention of range to the tutorial.
change tutorial's title.

R=rsc
CC=golang-dev
https://golang.org/cl/152098
This commit is contained in:
Rob Pike 2009-11-12 11:05:20 -08:00
parent 6634e3432d
commit cf16443c69
3 changed files with 37 additions and 5 deletions
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2
doc/go_spec.html
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@ -3010,7 +3010,7 @@ yields a function value representing <code>Mv</code> with signature
</p>
<pre>
func (tv *T, f int) int
func (tv *T, a int) int
</pre>
<p>

22
doc/go_tutorial.html
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@ -1,4 +1,4 @@
<!-- Let's Go -->
<!-- A Tutorial for the Go Programming Language -->
<h2>Introduction</h2>
<p>
This document is a tutorial introduction to the basics of the Go programming
@ -340,6 +340,24 @@ The built-in function <code>len()</code>, which returns number of elements,
makes its first appearance in <code>sum</code>. It works on strings, arrays,
slices, maps, and channels.
<p>
By the way, another thing that works on strings, arrays, slices, maps
and channels is the <code>range</code> clause on <code>for</code> loops. Instead of writing
<p>
<pre>
for i := 0; i < len(a); i++ { ... }
</pre>
<p>
to loop over the elements of a slice (or map or ...) , we could write
<p>
<pre>
for i, v := range a { ... }
</pre>
<p>
This assigns <code>i</code> to the index and <code>v</code> to the value of the successive
elements of the target of the range. See
<a href='/doc/effective_go.html'>Effective Go</a>
for more examples of its use.
<p>
<p>
<h2>An Interlude about Allocation</h2>
<p>
@ -511,7 +529,7 @@ exported factory to use is <code>Open</code>:
</pre>
<p>
There are a number of new things in these few lines. First, <code>Open</code> returns
multiple values, an <code>File</code> and an error (more about errors in a moment).
multiple values, a <code>File</code> and an error (more about errors in a moment).
We declare the
multi-value return as a parenthesized list of declarations; syntactically
they look just like a second parameter list. The function

18
doc/go_tutorial.txt
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@ -1,4 +1,4 @@
<!-- Let's Go -->
<!-- A Tutorial for the Go Programming Language -->
Introduction
----
@ -264,6 +264,20 @@ The built-in function "len()", which returns number of elements,
makes its first appearance in "sum". It works on strings, arrays,
slices, maps, and channels.
By the way, another thing that works on strings, arrays, slices, maps
and channels is the "range" clause on "for" loops. Instead of writing
for i := 0; i < len(a); i++ { ... }
to loop over the elements of a slice (or map or ...) , we could write
for i, v := range a { ... }
This assigns "i" to the index and "v" to the value of the successive
elements of the target of the range. See
<a href='/doc/effective_go.html'>Effective Go</a>
for more examples of its use.
An Interlude about Allocation
----
@ -391,7 +405,7 @@ exported factory to use is "Open":
--PROG progs/file.go /func.Open/ /^}/
There are a number of new things in these few lines. First, "Open" returns
multiple values, an "File" and an error (more about errors in a moment).
multiple values, a "File" and an error (more about errors in a moment).
We declare the
multi-value return as a parenthesized list of declarations; syntactically
they look just like a second parameter list. The function