JS/TS fixes

extensions/javascript/javascript-language-configuration.json

@@ -188,6 +188,15 @@
 			"action": {
 				"indent": "indent"
 			}
+		},
+		{
+			// Decrease indentation after single line if/else if/else, for, or while
+			"previousLineText": "^\\s*(((else ?)?if|for|while)\\s*\\(.*\\)\\s*|else\\s*)$",
+			// But make sure line doesn't have braces or is not another if statement
+			"beforeText": "^\\s+([^{i\\s]|i(?!f\\b))",
+			"action": {
+				"indent": "outdent"
+			}
 		}
 	]
 }