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1 files changed, 5 insertions, 0 deletions

diff --git a/app/javascript/flavours/glitch/util/js_helpers.js b/app/javascript/flavours/glitch/util/js_helpers.js
new file mode 100644
index 000000000..2ebd5b6c5
--- /dev/null
+++ b/app/javascript/flavours/glitch/util/js_helpers.js
@@ -0,0 +1,5 @@
+//  This function returns the new value unless it is `null` or
+//  `undefined`, in which case it returns the old one.
+export function overwrite (oldVal, newVal) {
+  return newVal === null || typeof newVal === 'undefined' ? oldVal : newVal;
+}