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initially i tried that but mongo throws an error , if i use $ it takes first matched element . { MongoError: cannot use the part (body of body.viewed.main) to traverse the element ({body: [ { type: "in", message: "yes", _id: ObjectId('587e2be40456010a3f4e3b8a'), createDate: new Date(1484663780842), hidden: false, viewed: { sub: false, main: false } }, { type: "in", message: "yes", _id: ObjectId('587e2be40456010a3f4e3c8a'), createDate: new Date(1484663780842), hidden: false, viewed: { sub: false, main: false } } ]})
api/database layer : I might go with nodejs + aws services or elixir/erlangVM. Database : I might go with mongodb/sql . And elastic search for fulltext searching application Layer : i might go with python or GO. web frontend : React js or phoenix elixir mobile : react native or traditional ios/android devlopemnt
Well it actually depends on what you want to build.I asked this question myself, I am a Javascript developer working in nodejs,react,angular etc. I answered this question myself by thinking what I want to build/learn in coming year . Finally I came with below list. Python : python is a great language for machine learning if you want to build some recommendation system etc. Basically all machine learning stuff from NLP to Neural networks. Javascript : Since I know js I can build a web app TO mobile app with javascript. React js is one the most popular languages of 2015-2016.So if you don't know js and want to build mobile/web apps go for it .From career point also it makes sense because js is on FIRE elixir-erlangVM : I love functional programming .And elixir is new functional lang with great syntax i guess most ruby developers will love it . I want to learn elixir because it runs on erlangVM by far the most robust ,fault tolerence,high availablity .Have a look at whatsapp stats https://blog.whatsapp.com/196/1-million-is-so-2011 . GO : Google's open source project has become very popular recently. You can expect the community to talk more Go in 2017.
Hi Vishnu, According to me JavaScript is not optimal choice for machine learning , I personally prefer "python" for machine learning over "JavaScript" . python,R,MAT LAB have some very good packages for ML Algorithm&Visualization . The support of such packages is quite behind in JavaScript.
There is no error , 400 bad request is coming in response , If i send a request with above options in postman i am getting 200 OK status But through request module its giving 400 bad request and i tried setting json : true and JSON.stringify(response). 400 '<html><body><h1>400 Bad request</h1>\nYour browser sent an invalid request.\n</body></html>\n'