mnylen

Simple implementation of debounced fetching in GraphQL to allow merging of multiple rest / database requests into one. Although this example uses GraphQL, the debouncedFetch / fetchProgramPlaycount implementations could probably be used in any context to achieve the same result.

This approach was first described by @leebyron at graphql/graphql-js#19 (comment)

For example this allows turning ten requests for playcounts from this GraphQL query into just one:

{
  latestPrograms(first: 10) {
    name,

playcount

kmpm

/// Original C++ implementation found at http://www.wilmott.com/messageview.cfm?catid=10&threadid=38771
/// C# implementation found at http://weblogs.asp.net/esanchez/archive/2010/07/29/a-quick-and-dirty-implementation-of-excel-norminv-function-in-c.aspx
/*
 *     Compute the quantile function for the normal distribution.
 *
 *     For small to moderate probabilities, algorithm referenced
 *     below is used to obtain an initial approximation which is
 *     polished with a final Newton step.
 *
 *     For very large arguments, an algorithm of Wichura is used.