Array Module

Empties an array, setting it's count to 0 but does not free the backing capacity. Returns the modified array.

Concatenates a variable number of arrays (and tuples) into the first argument, which must be an array. If any of the parts are arrays or tuples, their elements will be inserted into the array. Otherwise, each part in `parts` will be appended to `arr` in order. Return the modified array `arr`.

Ensures that the memory backing the array is large enough for `capacity` items at the given rate of growth. `capacity` and `growth` must be integers. If the backing capacity is already enough, then this function does nothing. Otherwise, the backing memory will be reallocated so that there is enough space.

Replace all elements of an array with `value` (defaulting to nil) without changing the length of the array. Returns the modified array.

Insert all `xs` into array `arr` at index `at`. `at` should be an integer between 0 and the length of the array. A negative value for `at` will index backwards from the end of the array, such that inserting at -1 appends to the array. Returns the array.

Creates a new empty array with a pre-allocated capacity. The same as `(array)` but can be more efficient if the maximum size of an array is known.

(def arr (array/new 100)) # -> @[]

# Now we can fill up the array without triggering a resize
(for i 0 100
  (put arr i i))

Creates a new array of `count` elements, all set to `value`, which defaults to nil. Returns the new array.

Returns the last element of the array. Does not modify the array.

Remove the last element of the array and return it. If the array is empty, will return nil. Modifies the input array.

Insert an element in the end of an array. Modifies the input array and returns it.

Remove up to `n` elements starting at index `at` in array `arr`. `at` can index from the end of the array with a negative index, and `n` must be a non-negative integer. By default, `n` is 1. Returns the array.

Takes a slice of array or tuple from `start` to `end`. The range is half open, [start, end). Indexes can also be negative, indicating indexing from the end of the array. By default, `start` is 0 and `end` is the length of the array. Note that index -1 is synonymous with index `(length arrtup)` to allow a full negative slice range. Returns a new array.

Set the backing capacity of an array to its current length. Returns the modified array.