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cycleGenerator javascript Code Snippet in 2023

functiongeneratoradvanced

Last Updated: 31 January 2023

Creates a generator, looping over the given array indefinitely.

  • Use a non-terminating while loop, that will yield a value every time Generator.prototype.next() is called.
  • Use the module operator (%) with Array.prototype.length to get the next value's index and increment the counter after each yield statement.
const cycleGenerator = function* (arr) { let i = 0; while (true) { yield arr[i % arr.length]; i++; } };
const binaryCycle = cycleGenerator([0, 1]); binaryCycle.next(); // { value: 0, done: false } binaryCycle.next(); // { value: 1, done: false } binaryCycle.next(); // { value: 0, done: false } binaryCycle.next(); // { value: 1, done: false }

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