From 1e1bed91f002487e239fee290eac070ded6ec67f Mon Sep 17 00:00:00 2001
From: Vesa Laakso <vesa.laakso@venuu.fi>
Date: Tue, 13 Sep 2016 22:16:40 +0300
Subject: [PATCH 1/2] Split no-unused-vars ESLint config to multiple lines

---
 config/eslint.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/config/eslint.js b/config/eslint.js
index 9c77d1f7b39..f3ffdf528f2 100644
--- a/config/eslint.js
+++ b/config/eslint.js
@@ -131,7 +131,10 @@ module.exports = {
     'no-unreachable': 'warn',
     'no-unused-expressions': 'warn',
     'no-unused-labels': 'warn',
-    'no-unused-vars': ['warn', { vars: 'local', args: 'none' }],
+    'no-unused-vars': ['warn', {
+      vars: 'local',
+      args: 'none'
+    }],
     'no-use-before-define': ['warn', 'nofunc'],
     'no-useless-computed-key': 'warn',
     'no-useless-concat': 'warn',

From 29a6eb865fc39c9da0459c061df0d67d8bda58da Mon Sep 17 00:00:00 2001
From: Vesa Laakso <vesa.laakso@venuu.fi>
Date: Tue, 13 Sep 2016 22:20:46 +0300
Subject: [PATCH 2/2] Exempt variables prefixed with underscore from
 no-unused-vars rule

This is useful when e.g. using object spread operator to remove only a
certain field from the object.

For example, this can be used to ignore a property from React
component's `this.props`:

    render() {
        const { someAttribute: _unused, ...rest } = this.props;
        return <pre>{ JSON.stringify(rest) }</pre>;
    }
---
 config/eslint.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/config/eslint.js b/config/eslint.js
index f3ffdf528f2..d83c66a85f7 100644
--- a/config/eslint.js
+++ b/config/eslint.js
@@ -133,6 +133,7 @@ module.exports = {
     'no-unused-labels': 'warn',
     'no-unused-vars': ['warn', {
       vars: 'local',
+      varsIgnorePattern: '^_',
       args: 'none'
     }],
     'no-use-before-define': ['warn', 'nofunc'],