Public Methods

<static> findClosest(value, arr) → {number}

Snaps a value to the nearest value in an array. The result will always be in the range [first_value, last_value].

Parameters

Name	Type	Description
value	number	The search value
arr	number[]	The input array which must be sorted.

Returns

number -

The nearest value found.

Source code: utils/ArrayUtils.js, line 174

<static> getRandomItem(objects, startIndex, length) → {object}

Fetch a random entry from the given array.

Will return null if there are no array items that fall within the specified range or if there is no item for the randomly choosen index.

Parameters

Name	Type	Description
objects	any[]	An array of objects.
startIndex	integer	Optional offset off the front of the array. Default value is 0, or the beginning of the array.
length	integer	Optional restriction on the number of values you want to randomly select from.

Returns

object -

The random object that was selected.

Source code: utils/ArrayUtils.js, line 27

<static> removeRandomItem(objects, startIndex, length) → {object}

Removes a random object from the given array and returns it.

Will return null if there are no array items that fall within the specified range or if there is no item for the randomly choosen index.

Parameters

Name	Type	Description
objects	any[]	An array of objects.
startIndex	integer	Optional offset off the front of the array. Default value is 0, or the beginning of the array.
length	integer	Optional restriction on the number of values you want to randomly select from.

Returns

object -

The random object that was removed.

Source code: utils/ArrayUtils.js, line 53

<static> rotate(array) → {any}

Moves the element from the start of the array to the end, shifting all items in the process. The "rotation" happens to the left.

Parameters

Name	Type	Description
array	any[]	The array to shift/rotate. The array is modified.

Returns

any -

The shifted value.

Source code: utils/ArrayUtils.js, line 197

<static> rotateMatrix(matrix, direction) → {Array.<Array.<any>>}

Rotates the given matrix (array of arrays).

Based on the routine from ">http://jsfiddle.net/MrPolywhirl/NH42z/}.

Parameters

Name	Type	Description
matrix	Array.<Array.<any>>	The array to rotate; this matrix may be altered.
direction	number | string	The amount to rotate: the roation in degrees (90, -90, 270, -270, 180) or a string command ('rotateLeft', 'rotateRight' or 'rotate180').

Returns

Array.<Array.<any>> -

The rotated matrix. The source matrix should be discarded for the returned matrix.

Source code: utils/ArrayUtils.js, line 134

<static> shuffle(array) → {any[]}

A standard Fisher-Yates Array shuffle implementation which modifies the array in place.

Parameters

Name	Type	Description
array	any[]	The array to shuffle.

Returns

any[] -

The original array, now shuffled.

Source code: utils/ArrayUtils.js, line 82

<static> transposeMatrix(array) → {Array.<Array.<any>>}

Transposes the elements of the given matrix (array of arrays).

Parameters

Name	Type	Description
array	Array.<Array.<any>>	The matrix to transpose.

Returns

Array.<Array.<any>> -

A new transposed matrix

Source code: utils/ArrayUtils.js, line 103