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author | Louis Pilfold <louis@lpil.uk> | 2024-01-18 16:44:27 +0000 |
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committer | Louis Pilfold <louis@lpil.uk> | 2024-01-18 16:44:27 +0000 |
commit | f92661980deac22b54e79cd44c25caba17910c95 (patch) | |
tree | 165923d00aab8e7a5d5944d388dbb182c6d57b51 /src/content/chapter1_functions/lesson05_pipelines | |
parent | e35f26eb4a034aad8a531986bf876075ffb02e3c (diff) | |
download | tour-f92661980deac22b54e79cd44c25caba17910c95.tar.gz tour-f92661980deac22b54e79cd44c25caba17910c95.zip |
Last of the content!
Diffstat (limited to 'src/content/chapter1_functions/lesson05_pipelines')
-rw-r--r-- | src/content/chapter1_functions/lesson05_pipelines/code.gleam | 19 | ||||
-rw-r--r-- | src/content/chapter1_functions/lesson05_pipelines/text.html | 25 |
2 files changed, 0 insertions, 44 deletions
diff --git a/src/content/chapter1_functions/lesson05_pipelines/code.gleam b/src/content/chapter1_functions/lesson05_pipelines/code.gleam deleted file mode 100644 index ec9b805..0000000 --- a/src/content/chapter1_functions/lesson05_pipelines/code.gleam +++ /dev/null @@ -1,19 +0,0 @@ -import gleam/io -import gleam/string - -pub fn main() { - // Without the pipe operator - io.debug(string.drop_left(string.drop_right("Hello, Joe!", 1), 7)) - - // With the pipe operator - "Hello, Mike!" - |> string.drop_right(1) - |> string.drop_left(7) - |> io.debug - - // Changing order with function capturing - "1" - |> string.append("2") - |> string.append("3", _) - |> io.debug -} diff --git a/src/content/chapter1_functions/lesson05_pipelines/text.html b/src/content/chapter1_functions/lesson05_pipelines/text.html deleted file mode 100644 index 783ade9..0000000 --- a/src/content/chapter1_functions/lesson05_pipelines/text.html +++ /dev/null @@ -1,25 +0,0 @@ -<p> - It's common to want to call a series of functions, passing the result of one - to the next. With the regular function call syntax this can be a little - difficult to read as you have to read the code from the inside out. -</p> -<p> - Gleam's pipe operator <code>|></code> helps with this problem by allowing you - to write code top-to-bottom. -</p> -<p> - The pipe operator takes the result of the expression on its left and passes it - as an argument to the function on its right. -</p> -<p> - It will first check to see if the left-hand value could be used as the first - argument to the call. For example, <code>a |> b(1, 2)</code> would become - <code>b(a, 1, 2)</code>. If not, it falls back to calling the result of the - right-hand side as a function, e.g., <code>b(1, 2)(a)</code> -</p> -<p> - Gleam code is typically written with the "subject" of the function as the - first argument, to make it easier to pipe. If you wish to pipe to a different - position then a function capture can be used to insert the argument to the - desired position. -</p> |