lazzy.ts/generators/range.js

Fast and lightweight library for lazy operations with iterable objects.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.range = void 0;
const rangeDefaults = {
    from: 0,
    to: Number.MAX_SAFE_INTEGER,
    step: 1,
};
function* range(parameters) {
    const { from, to, step } = Object.assign(Object.assign({}, rangeDefaults), parameters);
    if (step === 0) {
        return;
    }
    const condition = step < 0 ? ((n) => n >= to) : ((n) => n <= to);
    for (let n = from; condition(n); n += step) {
        if (!Number.isSafeInteger(n)) {
            return;
        }
        yield n;
    }
}
exports.range = range;
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