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docs/library/array.md

@@ -5,13 +5,15 @@ weight: 30
 type: "docs"
 ---
 
-The `array` function and its methods handle array creation and manipulation.
+The `array` function is an intrinsic (always available, no `use()` needed). It is **polymorphic** — its behavior depends on the type of the first argument.
 
-## Creation
+## From a Number
+
+Create an array of a given size.
 
 ### array(number)
 
-Create an array of specified size, filled with `null`.
+All elements initialized to `null`.
 
 ```javascript
 array(3)  // [null, null, null]
@@ -19,24 +21,36 @@ array(3)  // [null, null, null]
 
 ### array(number, initial)
 
-Create an array with initial values.
+All elements initialized to a value. If initial is a function, it is called for each element (passed the index if arity >= 1).
 
 ```javascript
 array(3, 0)           // [0, 0, 0]
 array(3, i => i * 2)  // [0, 2, 4]
 ```
 
+## From an Array
+
+Copy, map, concat, or slice.
+
 ### array(array)
 
-Copy an array.
+Copy an array (mutable).
 
 ```javascript
 var copy = array(original)
 ```
 
+### array(array, function)
+
+Map — call function with each element, collect results.
+
+```javascript
+array([1, 2, 3], x => x * 2)  // [2, 4, 6]
+```
+
 ### array(array, from, to)
 
-Slice an array.
+Slice — extract a sub-array. Negative indices count from end.
 
 ```javascript
 array([1, 2, 3, 4, 5], 1, 4)  // [2, 3, 4]
@@ -45,31 +59,36 @@ array([1, 2, 3], -2)          // [2, 3]
 
 ### array(array, another)
 
-Concatenate arrays.
+Concatenate two arrays.
 
 ```javascript
 array([1, 2], [3, 4])  // [1, 2, 3, 4]
 ```
 
-### array(object)
+## From a Record
 
-Get keys of an object.
+### array(record)
+
+Get the keys of a record as an array of text.
 
 ```javascript
 array({a: 1, b: 2})  // ["a", "b"]
 ```
 
+## From Text
+
 ### array(text)
 
-Split text into grapheme clusters.
+Split text into individual characters (grapheme clusters). This is the standard way to iterate over characters in a string.
 
 ```javascript
 array("hello")  // ["h", "e", "l", "l", "o"]
+array("ƿit")    // ["ƿ", "i", "t"]
 ```
 
 ### array(text, separator)
 
-Split text by separator.
+Split text by a separator string.
 
 ```javascript
 array("a,b,c", ",")  // ["a", "b", "c"]
@@ -77,7 +96,7 @@ array("a,b,c", ",")  // ["a", "b", "c"]
 
 ### array(text, length)
 
-Split text into chunks.
+Dice text into chunks of a given length.
 
 ```javascript
 array("abcdef", 2)  // ["ab", "cd", "ef"]
@@ -91,13 +110,13 @@ Iterate over elements.
 
 ```javascript
 array.for([1, 2, 3], function(el, i) {
-  log.console(i, el)
+  print(i, el)
 })
 
 // With early exit
 array.for([1, 2, 3, 4], function(el) {
   if (el > 2) return true
-  log.console(el)
+  print(el)
 }, false, true)  // prints 1, 2
 ```