1 files changed, 9 insertions, 0 deletions
diff --git a/popperjs/package/lib/utils/getOppositeVariationPlacement.js b/popperjs/package/lib/utils/getOppositeVariationPlacement.js
new file mode 100644
index 0000000..379d071
--- /dev/null
+++ b/popperjs/package/lib/utils/getOppositeVariationPlacement.js
@@ -0,0 +1,9 @@
+var hash = {
+  start: 'end',
+  end: 'start'
+};
+export default function getOppositeVariationPlacement(placement) {
+  return placement.replace(/start|end/g, function (matched) {
+    return hash[matched];
+  });
+}
+\ No newline at end of file