speed up has_parens() (#3014)

mishoo · Mar 23, 2018 · b1410be · b1410be
1 parent 12985d8
commit b1410be
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/output.js b/lib/output.js
@@ -576,7 +576,7 @@ function OutputStream(options) {
         indentation     : function() { return indentation },
         current_width   : function() { return current_col - indentation },
         should_break    : function() { return options.width && this.current_width() >= options.width },
-        has_parens      : function() { return OUTPUT.slice(-1) == "(" },
+        has_parens      : function() { return OUTPUT[OUTPUT.length - 1] == "(" },
         newline         : newline,
         print           : print,
         space           : space,