rc-js-util/bin/esm/array/impl/array-for-each-range.js

A collection of TS and C++ utilities to help writing performant and correct applications, achieved through strict typing and (removable) invariant checking.

import { _Debug } from "../../debug/_debug.js";
/**
 * @public
 * Like {@link arrayForEach} with integer range as input.
 *
 * @param from - The value to start from (inclusive).
 * @param to - The value to finish with (inclusive).
 * @param callback - Called for each value in the range.
 *
 * @remarks
 * Where `from` and `to` are equal a length 1 array is returned, NaN input is not supported.
 *
 * See {@link arrayForEachRange}.
 */
export function arrayForEachRange(from, to, callback) {
    _BUILD.DEBUG && _Debug.runBlock(() => {
        _Debug.assert(!isNaN(from) && !isNaN(to), "NaN range not supported");
    });
    const range = to - from;
    const increment = Math.sign(range);
    for (let i = 0; i < Math.abs(range) + 1; ++i) {
        callback(from, i);
        from += increment;
    }
}
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