Tuesday, May 1, 2018

.reduce in TypeScript

This has this TypeScript example (complete with the missing let or const leading keyword) of making a mess based on all of the things in an array which gives us a six.

total = [0, 1, 2, 3].reduce((a, b) => a + b);


In JavaScript:

total = [0, 1, 2, 3].reduce(function (a, b) { return a + b; });


Addendum 6/21/2018: The a here is the counter that progressively goes up and the b is the item at hand at each pass.

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