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fix a couple of typos.
add a mention of range to the tutorial. change tutorial's title. R=rsc CC=golang-dev https://golang.org/cl/152098
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@ -3010,7 +3010,7 @@ yields a function value representing <code>Mv</code> with signature
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</p>
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<pre>
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func (tv *T, f int) int
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func (tv *T, a int) int
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</pre>
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<p>
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@ -1,4 +1,4 @@
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<!-- Let's Go -->
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<!-- A Tutorial for the Go Programming Language -->
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<h2>Introduction</h2>
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<p>
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This document is a tutorial introduction to the basics of the Go programming
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@ -340,6 +340,24 @@ The built-in function <code>len()</code>, which returns number of elements,
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makes its first appearance in <code>sum</code>. It works on strings, arrays,
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slices, maps, and channels.
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<p>
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By the way, another thing that works on strings, arrays, slices, maps
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and channels is the <code>range</code> clause on <code>for</code> loops. Instead of writing
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<p>
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<pre>
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for i := 0; i < len(a); i++ { ... }
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</pre>
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<p>
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to loop over the elements of a slice (or map or ...) , we could write
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<p>
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<pre>
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for i, v := range a { ... }
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</pre>
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<p>
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This assigns <code>i</code> to the index and <code>v</code> to the value of the successive
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elements of the target of the range. See
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<a href='/doc/effective_go.html'>Effective Go</a>
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for more examples of its use.
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<p>
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<p>
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<h2>An Interlude about Allocation</h2>
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<p>
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@ -511,7 +529,7 @@ exported factory to use is <code>Open</code>:
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</pre>
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<p>
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There are a number of new things in these few lines. First, <code>Open</code> returns
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multiple values, an <code>File</code> and an error (more about errors in a moment).
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multiple values, a <code>File</code> and an error (more about errors in a moment).
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We declare the
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multi-value return as a parenthesized list of declarations; syntactically
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they look just like a second parameter list. The function
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@ -1,4 +1,4 @@
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<!-- Let's Go -->
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<!-- A Tutorial for the Go Programming Language -->
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Introduction
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----
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@ -264,6 +264,20 @@ The built-in function "len()", which returns number of elements,
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makes its first appearance in "sum". It works on strings, arrays,
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slices, maps, and channels.
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By the way, another thing that works on strings, arrays, slices, maps
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and channels is the "range" clause on "for" loops. Instead of writing
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for i := 0; i < len(a); i++ { ... }
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to loop over the elements of a slice (or map or ...) , we could write
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for i, v := range a { ... }
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This assigns "i" to the index and "v" to the value of the successive
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elements of the target of the range. See
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<a href='/doc/effective_go.html'>Effective Go</a>
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for more examples of its use.
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An Interlude about Allocation
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----
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@ -391,7 +405,7 @@ exported factory to use is "Open":
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--PROG progs/file.go /func.Open/ /^}/
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There are a number of new things in these few lines. First, "Open" returns
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multiple values, an "File" and an error (more about errors in a moment).
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multiple values, a "File" and an error (more about errors in a moment).
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We declare the
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multi-value return as a parenthesized list of declarations; syntactically
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they look just like a second parameter list. The function
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