diff options
Diffstat (limited to 'src/content/chapter4_standard_library/lesson02_result_module')
| -rw-r--r-- | src/content/chapter4_standard_library/lesson02_result_module/en.html | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/src/content/chapter4_standard_library/lesson02_result_module/en.html b/src/content/chapter4_standard_library/lesson02_result_module/en.html index 4901afd..0760145 100644 --- a/src/content/chapter4_standard_library/lesson02_result_module/en.html +++ b/src/content/chapter4_standard_library/lesson02_result_module/en.html @@ -1,25 +1,25 @@ <p> The - <a href="https://hexdocs.pm/gleam_stdlib/gleam/result.html" - ><code>gleam/result</code></a - > + <a href="https://hexdocs.pm/gleam_stdlib/gleam/result.html" target="_blank"> + <code>gleam/result</code> + </a> standard library module contains functions for working with results. Gleam programs will make heavy use of this module to avoid excessive nested case expressions when calling multiple functions that can fail. </p> <p> - <a href="https://hexdocs.pm/gleam_stdlib/gleam/result.html#map" - ><code>map</code></a - > + <a href="https://hexdocs.pm/gleam_stdlib/gleam/result.html#map" target="_blank"> + <code>map</code> + </a> updates a value held within the Ok of a result by calling a given function on it. If the result is an error then the function is not called. </p> <p> - <a href="https://hexdocs.pm/gleam_stdlib/gleam/result.html#try" - ><code>try</code></a - > + <a href="https://hexdocs.pm/gleam_stdlib/gleam/result.html#try" target="_blank"> + <code>try</code> + </a> runs a result returning function on the value held within an Ok of a result. If the result is an error then the function is not called. This is useful for chaining together multiple function calls that can fail, one after the other, @@ -27,9 +27,9 @@ </p> <p> - <a href="https://hexdocs.pm/gleam_stdlib/gleam/result.html#unwrap" - ><code>unwrap</code></a - > + <a href="https://hexdocs.pm/gleam_stdlib/gleam/result.html#unwrap" target="_blank"> + <code>unwrap</code> + </a> extracts the success value from a result, or returning a default value if the result is an error. </p> |