ut2/lib/internals/baseSlice.js

一个现代 JavaScript 实用工具库。[点击查看在线文档]。

'use strict';

function baseSlice(array, start, end) {
    var index = -1, length = array.length;
    if (start < 0) {
        start = -start > length ? 0 : length + start;
    }
    end = end > length ? length : end;
    if (end < 0) {
        end += length;
    }
    length = start > end ? 0 : (end - start) >>> 0;
    start >>>= 0;
    var result = Array(length);
    while (++index < length) {
        result[index] = array[index + start];
    }
    return result;
}

module.exports = baseSlice;