You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
38 lines
1.0 KiB
JavaScript
38 lines
1.0 KiB
JavaScript
6 years ago
|
var baseSlice = require('./_baseSlice'),
|
||
|
|
isIterateeCall = require('./_isIterateeCall'),
|
||
|
|
toInteger = require('./toInteger');
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Creates a slice of `array` from `start` up to, but not including, `end`.
|
||
|
|
*
|
||
|
|
* **Note:** This method is used instead of
|
||
|
|
* [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are
|
||
|
|
* returned.
|
||
|
|
*
|
||
|
|
* @static
|
||
|
|
* @memberOf _
|
||
|
|
* @since 3.0.0
|
||
|
|
* @category Array
|
||
|
|
* @param {Array} array The array to slice.
|
||
|
|
* @param {number} [start=0] The start position.
|
||
|
|
* @param {number} [end=array.length] The end position.
|
||
|
|
* @returns {Array} Returns the slice of `array`.
|
||
|
|
*/
|
||
|
|
function slice(array, start, end) {
|
||
|
|
var length = array == null ? 0 : array.length;
|
||
|
|
if (!length) {
|
||
|
|
return [];
|
||
|
|
}
|
||
|
|
if (end && typeof end != 'number' && isIterateeCall(array, start, end)) {
|
||
|
|
start = 0;
|
||
|
|
end = length;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
start = start == null ? 0 : toInteger(start);
|
||
|
|
end = end === undefined ? length : toInteger(end);
|
||
|
|
}
|
||
|
|
return baseSlice(array, start, end);
|
||
|
|
}
|
||
|
|
|
||
|
|
module.exports = slice;
|