Latest #guard Threads 
Is there a guard for testing protocol implementation?
is_proto/2
For example, how to guard test for implementing Enumerable?
I underst...
New
I have a problem, where i have a macro the calls another function. I want to be able to add optional guards to my macro, and call the nes...
New
Why map update syntax does not work in guards?
1> case [1, 2, 3] of
1> X when #{x => 1}#{x => 2} =:= #{x => 2} -> X
...
New
Hi,
If in a guard I use :erlang.map_get/2 on a map that does not have the key, and use a or to put another guard condition in second pos...
New
Sometimes I want to check if the input into a function is not a blank string.
My first approach:
defmodule Example do
def do_stuff(s...
New
I maintain a library where a user can publish a message and I want to accept any iodata (I end up writing it to a TCP connection), but I ...
New
Hello,
Is it possible to check if an argument to a guard is a particular structure?
Context: I am trying to have a defguard definition ...
New
I have the following code where I test for the existence of an ETS table:
case :ets.whereis(:metrics) do
:undefined ...
New
Hello, I wanted to create custom guard like this , but I have an error:
cannot invoke remote function Regex.match?/2 inside guard
guar...
New
Hello , I have 3 fn which create and check list, but it does not work for me .
for example :
list creator :
defp string_to_array(stri...
New
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I have a problem, where i have a macro the calls another function. I want to be able to add optional guards to my macro, and call the nes...
New
Is there a guard for testing protocol implementation?
is_proto/2
For example, how to guard test for implementing Enumerable?
I underst...
New
Trending Over Three Years
Sometimes I want to check if the input into a function is not a blank string.
My first approach:
defmodule Example do
def do_stuff(s...
New
Hello, I wanted to create custom guard like this , but I have an error:
cannot invoke remote function Regex.match?/2 inside guard
guar...
New
Hi,
If in a guard I use :erlang.map_get/2 on a map that does not have the key, and use a or to put another guard condition in second pos...
New
Hello,
Is it possible to check if an argument to a guard is a particular structure?
Context: I am trying to have a defguard definition ...
New
I maintain a library where a user can publish a message and I want to accept any iodata (I end up writing it to a TCP connection), but I ...
New
Hello , I have 3 fn which create and check list, but it does not work for me .
for example :
list creator :
defp string_to_array(stri...
New
I have the following code where I test for the existence of an ETS table:
case :ets.whereis(:metrics) do
:undefined ...
New
Why map update syntax does not work in guards?
1> case [1, 2, 3] of
1> X when #{x => 1}#{x => 2} =:= #{x => 2} -> X
...
New
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