Build: Require strict mode in Node.js scripts via ESLint

So far, only browser-based JS files were required to be in strict mode (in the
function form). This commit adds such a requirement to Node.js scripts where
the global form is preferred. All Node.js scripts in sloppy mode were
converted to strict mode.

Closes gh-4499

(cherry picked from commit bbad821c399da92995a11b88d6684970479d4a9b)

1 files changed, 4 insertions, 0 deletions

diff --git a/.eslintrc-node.json b/.eslintrc-node.json
index 589144272..544a92cdc 100644
--- a/.eslintrc-node.json
+++ b/.eslintrc-node.json
@@ -10,5 +10,9 @@
 	"env": {
 		"es6": true,
 		"node": true
+	},
+
+	"rules": {
+		"strict": ["error", "global"]
 	}
 }