feat: add allTrue and allFalse

andres-lowrie · Jun 2, 2023 · 5f65f47 · 5f65f47
1 parent 0ac5965
commit 5f65f47
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Showing 3 changed files with 29 additions and 1 deletion.
diff --git a/index.js b/index.js
@@ -190,6 +190,12 @@ exports._isEmpty = a => exports.make(exports.isEmpty, a)
 exports.isNotEmpty = a => !exports.isEmpty(a)
 exports._isNotEmpty = a => exports.make(exports.isNotEmpty, a)
 
+exports.allTrue = arr => arr.every(exports.isTrue)
+exports._allTrue = (...args) => exports.make(exports.allTrue, ...args)
+
+exports.allFalse = arr => arr.every(exports.isFalse)
+exports._allFalse = (...args) => exports.make(exports.allFalse, ...args)
+
 // Lazy things
 exports.any = (pred, arr) => {
   for (let i = 0; i < arr.length; i++) {
@@ -200,9 +206,12 @@ exports.any = (pred, arr) => {
   }
   return false
 }
+exports._any = (...args) => exports.make(exports.any, ...args)
 
 exports.anyTrue = arr => exports.any(exports.isTrue, arr)
+exports._anyTrue = (...args) => exports.make(exports.anyTrue, ...args)
 exports.anyFalse = arr => exports.any(exports.isFalse, arr)
+exports._anyFalse = (...args) => exports.make(exports.anyFalse, ...args)
 
 // Loops/Collections
 exports.forEach = (a, f) => {
@@ -211,3 +220,4 @@ exports.forEach = (a, f) => {
   }
   return exports.forEach(exports.pairs(a), f)
 }
+exports._forEach = (...args) => exports.make(exports.forEach, ...args)
diff --git a/package.json b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@andres-lowrie/declarative",
-  "version": "1.0.2",
+  "version": "1.0.3",
   "description": "Set of functions for more declarative programming",
   "main": "index.js",
   "directories": {

diff --git a/tests/main.js b/tests/main.js
@@ -572,6 +572,24 @@ const cases = [
     assert.strictEqual(true, mod._isNotEmpty([1])())
     assert.strictEqual(true, mod._isNotEmpty({ a: 1 })())
   }),
+  test('allTrue: It should return true only if all items are true', () => {
+    assert.strictEqual(true, mod.allTrue([true, 1 === 1]))
+    assert.strictEqual(false, mod.allTrue([false, 1 === 0]))
+  }),
+  test('_allTrue', () => {
+    assert.strictEqual(true, mod._allTrue([true, 1 === 1])())
+    assert.strictEqual(false, mod._allTrue([false, 1 === 0])())
+  }),
+  test('allFalse: It should return true only if all items are false', () => {
+    assert.strictEqual(false, mod.allFalse([true, 1 === 1]))
+    assert.strictEqual(true, mod.allFalse([false, 1 === 0]))
+    assert.strictEqual(false, mod.allFalse([false, 1 === 1]))
+  }),
+  test('_allFalse', () => {
+    assert.strictEqual(false, mod._allFalse([true, 1 === 1])())
+    assert.strictEqual(true, mod._allFalse([false, 1 === 0])())
+    assert.strictEqual(false, mod._allFalse([false, 1 === 1])())
+  }),
 
   // Lazy things
   test('any: It should return first function in array that passes the predicate', () => {