Arrays

Array builtins in Tish.

Array.isArray

Method	Description
`Array.isArray(v)`	True if v is an array

Mutating methods

Method	Description
`.push(val, ...)`	Add to end, returns new length
`.pop()`	Remove and return last element
`.shift()`	Remove and return first element
`.unshift(val, ...)`	Add to beginning, returns new length
`.reverse()`	Reverse in place
`.sort()`	Sort in place (default: string order)
`.splice(start, deleteCount?, ...items)`	Remove/insert elements
`.flat(depth?)`	Flatten nested arrays

Non-mutating methods

Method	Description
`.indexOf(val)`	Index of element, or -1
`.includes(val)`	True if element exists
`.join(sep?)`	Join with separator (default ",")
`.slice(start, end?)`	Extract portion
`.concat(arr, ...)`	Combine arrays

Higher-order methods

Method	Description
`.map(fn)`	Transform each element
`.filter(fn)`	Keep elements where fn returns truthy
`.reduce(fn, init)`	Accumulate to single value
`.find(fn)`	First matching element
`.findIndex(fn)`	Index of first match
`.forEach(fn)`	Execute fn for each element
`.some(fn)`	True if any element passes
`.every(fn)`	True if all elements pass
`.flatMap(fn)`	Map then flatten

Sort variants

Method	Description
`.sort()`	Default (string) order
`.sort(fn)`	Custom comparator (return negative, 0, or positive)
`.sort()` (numeric)	Use comparator for numeric sort