aboutsummaryrefslogtreecommitdiff
path: root/node_modules/es6-map/is-native-implemented.js
diff options
context:
space:
mode:
Diffstat (limited to 'node_modules/es6-map/is-native-implemented.js')
-rw-r--r--node_modules/es6-map/is-native-implemented.js9
1 files changed, 9 insertions, 0 deletions
diff --git a/node_modules/es6-map/is-native-implemented.js b/node_modules/es6-map/is-native-implemented.js
new file mode 100644
index 000000000..b0b7a1916
--- /dev/null
+++ b/node_modules/es6-map/is-native-implemented.js
@@ -0,0 +1,9 @@
+// Exports true if environment provides native `Map` implementation,
+// whatever that is.
+
+'use strict';
+
+module.exports = (function () {
+ if (typeof Map === 'undefined') return false;
+ return (Object.prototype.toString.call(new Map()) === '[object Map]');
+}());