Tutorial by Topics: between

In many applications, records from MongoDB need to be serialized in JSON format. If your records have fields of type date, datetime, objectId, binary, code, etc. you will encounter TypeError: not JSON serializable exceptions when using json.dumps. This topic shows how to overcome this.

In web pages contain number of frame, selenium consider Frame is seprate window so access the content present into frame need to switch into frame. Many time we need Web structure where we have frame with in frame to navigate within frame windows Selenium provide swithTo() method.

This is for the readers who come from relational background and want to learn elasticsearch. This topic shows the use cases for which Relational databases are not a suitable option.