@sweet-monads/either - npm Package Compare versions

Comparing version 3.2.0 to 3.3.0

package.json

 {
   "name": "@sweet-monads/either",
-  "version": "3.2.0",
+  "version": "3.3.0",
   "description": "Either monad",
@@ -32,3 +32,3 @@ "main": "./cjs/index.js",
   "dependencies": {
-    "@sweet-monads/interfaces": "^3.2.0"
+    "@sweet-monads/interfaces": "^3.3.0"
   },
@@ -35,0 +35,0 @@ "author": "JSMonk",

README.md

@@ -61,2 +61,3 @@ # @sweet-monads/either
 - [`Either#asyncChain`](#eitherasyncchain)
+- [`Either#fold`](#eitherfold)
 - [Helpers](#helpers)
@@ -501,2 +502,21 @@
 
+##### `Either#fold`
+
+```typescript
+function fold<C>(mapLeft: (value: L) => C, mapRight: (value: R) => C): C;
+```
+
+- Returns values mapped by `mapRight` if `Either` is `Right`, otherwise value mapped by `mapLeft`
+  Example:
+
+```typescript
+const v1 = right<Error, number>(2);
+const v2 = left<Error, number>(new Error());
+
+// 4
+const newVal1 = v1.fold(() => 'fail', value => value * 2);
+// "fail"
+const newVal2 = v2.fold(() => 'fail', value => value * 2);
+```
+
 #### Helpers
@@ -516,3 +536,3 @@
 
-right(2).unwrap((; // number
+right(2).unwrap(); // number
 left(new TypeError()).unwrap(x => x); // throws TypeError provied in arguments
@@ -519,0 +539,0 @@

New alerts

Major refactor

Supply chain risk

Package has recently undergone a major refactor. It may be unstable or indicate significant internal changes. Use caution when updating to versions that include significant changes.

Found 1 instance in 1 package

Improved metrics

Number of lines in readme file

547

increased by3.8%

Worsened metrics

Total package byte prevSize

33005

decreased by-37.1%

Number of package files

4

decreased by-55.56%

Lines of code

313

decreased by-56.1%

Number of medium supply chain risk alerts

1

increased byInfinity%

Dependency changes

• Updated@sweet-monads/interfaces@^3.3.0