Demo for query storing
Change-Id: I947bcac841992c3f6cfd01ab337c265b0d01cb70
diff --git a/node_modules/is-string/index.js b/node_modules/is-string/index.js
new file mode 100644
index 0000000..95b7050
--- /dev/null
+++ b/node_modules/is-string/index.js
@@ -0,0 +1,24 @@
+'use strict';
+
+var strValue = String.prototype.valueOf;
+var tryStringObject = function tryStringObject(value) {
+ try {
+ strValue.call(value);
+ return true;
+ } catch (e) {
+ return false;
+ }
+};
+var toStr = Object.prototype.toString;
+var strClass = '[object String]';
+var hasToStringTag = typeof Symbol === 'function' && typeof Symbol.toStringTag === 'symbol';
+
+module.exports = function isString(value) {
+ if (typeof value === 'string') {
+ return true;
+ }
+ if (typeof value !== 'object') {
+ return false;
+ }
+ return hasToStringTag ? tryStringObject(value) : toStr.call(value) === strClass;
+};