1 files changed, 22 insertions, 0 deletions
diff --git a/node_modules/@isaacs/string-locale-compare/index.js b/node_modules/@isaacs/string-locale-compare/index.js
new file mode 100644
index 000000000..a6cec27ef
--- /dev/null
+++ b/node_modules/@isaacs/string-locale-compare/index.js
@@ -0,0 +1,22 @@
+const hasIntl = typeof Intl === 'object' && !!Intl
+const Collator = hasIntl && Intl.Collator
+const cache = new Map()
+
+const collatorCompare = locale => {
+  const collator = new Collator(locale)
+  return (a, b) => collator.compare(a, b)
+}
+
+const localeCompare = locale => (a, b) => a.localeCompare(b, locale)
+
+module.exports = locale => {
+  if (!locale || typeof locale !== 'string')
+    throw new TypeError('locale required')
+
+  if (cache.has(locale))
+    return cache.get(locale)
+
+  const compare = hasIntl ? collatorCompare(locale) : localeCompare(locale)
+  cache.set(locale, compare)
+  return compare
+}