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add missing comma #39620

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Feb 8, 2017
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add missing comma #39620

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2 changes: 1 addition & 1 deletion src/doc/book/lifetimes.md
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Expand Up @@ -108,7 +108,7 @@ fn skip_prefix<'a, 'b>(line: &'a str, prefix: &'b str) -> &'a str {

Let's examine the changes without going too deep into the syntax for now -
we'll get to that later. The first change was adding the `<'a, 'b>` after the
method name. This introduces two lifetime parameters: `'a` and `'b`. Next each
method name. This introduces two lifetime parameters: `'a` and `'b`. Next, each
reference in the function signature was associated with one of the lifetime
parameters by adding the lifetime name after the `&`. This tells the compiler
how the lifetimes between different references are related.
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