modified

2026-06-12 08:14:39 +02:00 · 2023-11-24 22:35:41 +01:00
parent 3c0b507a93
commit 7644b2a0f7
45165 changed files with 4803356 additions and 3 deletions
@@ -0,0 +1,38 @@
+/**
+Convert a value to an array.
+
+_Supplying `null` or `undefined` results in an empty array._
+
+@example
+```
+import arrify = require('arrify');
+
+arrify('🦄');
+//=> ['🦄']
+
+arrify(['🦄']);
+//=> ['🦄']
+
+arrify(new Set(['🦄']));
+//=> ['🦄']
+
+arrify(null);
+//=> []
+
+arrify(undefined);
+//=> []
+```
+*/
+declare function arrify<ValueType>(
+	value: ValueType
+): ValueType extends (null | undefined)
+	? []
+	: ValueType extends string
+	? [string]
+	: ValueType extends ReadonlyArray<unknown> // TODO: Use 'readonly unknown[]' in the next major version
+	? ValueType
+	: ValueType extends Iterable<infer T>
+	? T[]
+	: [ValueType];
+
+export = arrify;