made element api to return the web element at the provided index

lib/api/_loaders/element-global.js

@@ -68,6 +68,7 @@ class ElementGlobal {
     this.abortOnFailure = this.settings.globals.abortOnElementLocateError;
     this.timeout = this.settings.globals.waitForConditionTimeout;
     this.retryInterval = this.settings.globals.waitForConditionPollInterval;
+    this.index = 0;
     this.init();
   }
 
@@ -89,7 +90,30 @@ class ElementGlobal {
 
     const byLocator = Locator.create(locator);
 
-    this.element = await this.transport.driver.wait(until.elementLocated(byLocator), this.timeout, null, this.retryInterval);
+    this.element = await this.transport.driver.wait(until.elementsLocated(byLocator), this.timeout, null, this.retryInterval);
+
+    this.index = locator.__index;
+
+    if (this.element.length === 0) {
+      throw new Error(`Element ${locator} was not found.`);
+    }
+
+    if (!this.index){
+      this.element = this.element[0];
+
+      return;
+    }
+
+    if (typeof(locator.__index) != 'number'){
+      throw new Error('Index should be of type number');
+    }
+
+    if (this.element.lenght < this.index){
+      throw new Error('Index is out of bounds.');
+    }
+
+    this.element = this.element[this.index];
+
   }
 
   static isElementObject(element) {
@@ -163,7 +187,7 @@ class ElementGlobal {
         value = {
           value: locator,
           using: this.client.locateStrategy
-        };  
+        };
       } else {
         value = locator;
       }
@@ -242,7 +266,6 @@ class ElementGlobal {
         if (commandName === 'findElement' && args.length === 0) {
           return this.element;
         }
-
         args = this.computeArguments(args, commandName);
         let value;
         let error;
@@ -269,7 +292,7 @@ class ElementGlobal {
           });
         }
 
-        const lastArg = args[args.length-1];
+        const lastArg = args[args.length - 1];
         if (isFunction(lastArg)) {
           if (error) {
             return lastArg.call(this.api, {

test/apidemos/elements/elementGlobalTest.js

@@ -56,8 +56,8 @@ describe('get text using element-global', function () {
   test('test for element properties as argument', async function () {
     const weblogin = element({selector: '#weblogin', index: 1});
     const id = await weblogin.getId();
-
-    assert.strictEqual(id, '5cc459b8-36a8-3042-8b4a-258883ea642b');
+    
+    assert.strictEqual(id, '3783b042-7001-0740-a2c0-afdaac732e9f');
   });
 
 });