added fixer for Standard

autoload/ale/fix/registry.vim

@@ -62,6 +62,11 @@ let s:default_registry = {
 \       'suggested_filetypes': ['ruby'],
 \       'description': 'Fix ruby files with rubocop --auto-correct.',
 \   },
+\   'standard': {
+\       'function': 'ale#fixers#standard#Fix',
+\       'suggested_filetypes': ['javascript'],
+\       'description': 'Fix JavaScript files using standard --fix',
+\   },
 \}
 
 " Reset the function registry to the default entries.

autoload/ale/fixers/standard.vim

@@ -0,0 +1,19 @@
+" Author: Sumner Evans <sumner.evans98@gmail.com>
+" Description: Fixing files with Standard.
+
+function! ale#fixers#standard#GetExecutable(buffer) abort
+    return ale#node#FindExecutable(a:buffer, 'javascript_standard', [
+    \   'node_modules/standard/bin/cmd.js',
+    \   'node_modules/.bin/standard',
+    \])
+endfunction
+
+function! ale#fixers#standard#Fix(buffer) abort
+    let l:executable = ale#fixers#standard#GetExecutable(a:buffer)
+
+    return {
+    \   'command': ale#Escape(l:executable)
+    \       . ' --fix %t',
+    \   'read_temporary_file': 1,
+    \}
+endfunction