mout/array/slice.js

Modular Utilities

"use strict";
exports.__esModule = true;
/**
 * Create slice of source array or array-like object
 */
function slice(arr, start, end) {
    var len = arr.length;
    if (start == null) {
        start = 0;
    }
    else if (start < 0) {
        start = Math.max(len + start, 0);
    }
    else {
        start = Math.min(start, len);
    }
    if (end == null) {
        end = len;
    }
    else if (end < 0) {
        end = Math.max(len + end, 0);
    }
    else {
        end = Math.min(end, len);
    }
    var result = [];
    while (start < end) {
        result.push(arr[start++]);
    }
    return result;
}
exports["default"] = slice;