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Return an iterator's length.
import iterLength from 'https://cdn.jsdelivr.net/gh/stdlib-js/iter-length@esm/index.mjs';Consumes an entire iterator and returns the number of iterated values (i.e., the iterator length).
import array2iterator from 'https://cdn.jsdelivr.net/gh/stdlib-js/array-to-iterator@esm/index.mjs';
var arr = array2iterator( [ 0, 0, 0, 0, 1 ] );
var len = iterLength( arr );
// returns 5If a provided iterator does not return any iterated values, the function returns 0.
import iterEmpty from 'https://cdn.jsdelivr.net/gh/stdlib-js/iter-empty@esm/index.mjs';
var len = iterLength( iterEmpty() );
// returns 0<!DOCTYPE html>
<html lang="en">
<body>
<script type="module">
import randu from 'https://cdn.jsdelivr.net/gh/stdlib-js/random-iter-randu@esm/index.mjs';
import iterLength from 'https://cdn.jsdelivr.net/gh/stdlib-js/iter-length@esm/index.mjs';
// Create an iterator which generates uniformly distributed pseudorandom numbers:
var opts = {
'iter': 100
};
var iter = randu( opts );
// Determine the iterator length:
var len = iterLength( iter );
// returns 100
</script>
</body>
</html>@stdlib/iter-counter: create an iterator which iteratively returns the number of iterated values.
This package is part of stdlib, a standard library with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.
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