Using full-stack JavaScript to maximum effect
JavaScript has become a full-stack language. A native JavaScript runtime exists in all browsers. V8, the JavaScript interpreter used by Node, is the same engine powering Google's Chrome browser. And the language has gone even further than covering both the client and server layers of the software stack. JavaScript is used to query the CouchDB database, do map/reduce with MongoDB, and find data in ElasticSearch collections. The wildly popular JavaScript Object Notation (JSON) data format simply represents data as a JavaScript object.
When different languages are used within the same application, the cost of context switching goes up. If a system is composed of parts described in different languages, ...
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