Throw error if somebody tries to use styleMapping()

1 files changed, 4 insertions, 0 deletions

diff --git a/lib/index.js b/lib/index.js
index baae852..35bcbaf 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -25,3 +25,7 @@ function convertDocumentToHtml(documentResult, options) {
         return documentConverter.convertToHtml(document);
     });
 }
+
+exports.styleMapping = function() {
+    throw new Error('Use a raw string instead of mammoth.styleMapping e.g. "p[style-naming=\'Title\'] => h1" instead of mammoth.styleMapping("p[style-naming=\'Title\'] => h1")');
+};