Friday, August 28, 2015

Difference between Map and Filter


  • You can prettify your JSON output by passing null and the number of spaces to indent.
  • Another useful high order function you can use is reduce which combines the elements of an array to a single value.
  • The logic that each function (map, filter reduce) calls to manipulate the original array of data is called a closure. Note that there is no formal function declaration and no function name for a closure.

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