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Subhajit Sahu edited this page Feb 3, 2021
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21 revisions
Find the length of an iterable.
Similar: index, indexRange, size, isEmpty.
function length(x, i, I)
// x: an iterable
// i: start index [0]
// I: end index [END]const xiterable = require('extra-iterable');
var x = [2, 4, 6, 8];
xiterable.length(x);
// → 4
xiterable.length(x, 1);
// → 3
xiterable.length(x, 1, 3);
// → 2