Update

compiler/eslint.vim

@@ -0,0 +1,15 @@
+if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'javascript') == -1
+  
+if exists("current_compiler")
+  finish
+endif
+let current_compiler = "eslint"
+
+if exists(":CompilerSet") != 2
+  command! -nargs=* CompilerSet setlocal <args>
+endif
+
+CompilerSet makeprg=eslint\ -f\ compact\ %
+CompilerSet errorformat=%f:\ line\ %l\\,\ col\ %c\\,\ %m
+
+endif