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-rw-r--r--ext/mixed/js/core.js5
1 files changed, 5 insertions, 0 deletions
diff --git a/ext/mixed/js/core.js b/ext/mixed/js/core.js
index 835d9cea..589425f2 100644
--- a/ext/mixed/js/core.js
+++ b/ext/mixed/js/core.js
@@ -94,6 +94,11 @@ function hasOwn(object, property) {
return Object.prototype.hasOwnProperty.call(object, property);
}
+// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions
+function escapeRegExp(string) {
+ return string.replace(/[.*+\-?^${}()|[\]\\]/g, '\\$&');
+}
+
// toIterable is required on Edge for cross-window origin objects.
function toIterable(value) {
if (typeof Symbol !== 'undefined' && typeof value[Symbol.iterator] !== 'undefined') {