Add any, anyBy, all, allBy, none, noneBy

snippets/all.md

@@ -0,0 +1,13 @@
+### all
+
+Returns `true` if all elements in a collection are truthy, `false` otherwise.
+
+Use `Array.every(Boolean)` to test if all elements in the collection are truthy.
+
+```js
+const all = arr => arr.every(Boolean);
+```
+
+```js
+all([1,2,3]); // true
+```

snippets/allBy.md

@@ -0,0 +1,13 @@
+### allBy
+
+Returns `true` if the provided predicate function returns `true` for all elements in a collection, `false` otherwise.
+
+Use `Array.every()` to test if all elements in the collection return `true` based on `fn`.
+
+```js
+const allBy = (arr, fn) => arr.every(fn);
+```
+
+```js
+allBy([4,2,3], x => x > 1); // true
+```

snippets/any.md

@@ -0,0 +1,13 @@
+### any
+
+Returns `true` if at least one element in a collection is truthy, `false` otherwise.
+
+Use `Array.some(Boolean)` to test if any elements in the collection are truthy.
+
+```js
+const any = arr => arr.some(Boolean);
+```
+
+```js
+any([0,0,1,0]); // true
+```

snippets/anyBy.md

@@ -0,0 +1,13 @@
+### anyBy
+
+Returns `true` if the provided predicate function returns `true` for at least one element in a collection, `false` otherwise.
+
+Use `Array.some()` to test if any elements in the collection return `true` based on `fn`.
+
+```js
+const anyBy = (arr, fn) => arr.some(fn);
+```
+
+```js
+anyBy([0,1,2,0], x => x >= 2); // true
+```

snippets/none.md

@@ -0,0 +1,13 @@
+### none
+
+Returns `true` if no elements in a collection are truthy, `false` otherwise.
+
+Use `!Array.some(Boolean)` to test if any elements in the collection are truthy.
+
+```js
+const none = arr => !arr.some(Boolean);
+```
+
+```js
+none([0,0,0]); // true
+```

snippets/noneBy.md

@@ -0,0 +1,13 @@
+### noneBy
+
+Returns `true` if the provided predicate function returns `false` for all elements in a collection, `false` otherwise.
+
+Use `Array.some()` to test if any elements in the collection return `true` based on `fn`.
+
+```js
+const noneBy = (arr, fn) => !arr.some(fn);
+```
+
+```js
+noneBy([0,1,3,0], x => x == 2); // true
+```

tag_database

@@ -1,4 +1,8 @@
+all:array
+allBy:array,function
 anagrams:string,recursion
+any:array
+anyBy:array,function
 arrayToHtmlList:browser,array
 ary:adapter,function
 atob:node,string,utility
@@ -154,6 +158,8 @@ merge:object,array
 minBy:math,array,function
 minN:array,math
 negate:function
+none:array
+noneBy:array,function
 nthArg:utility,function
 nthElement:array
 objectFromPairs:object,array

test/all/all.js

@@ -0,0 +1,2 @@
+const all = arr => arr.every(Boolean);
+module.exports = all;

test/all/all.test.js

@@ -0,0 +1,19 @@
+const test = require('tape');
+const all = require('./all.js');
+
+test('Testing all', (t) => {
+  //For more information on all the methods supported by tape
+  //Please go to https://github.com/substack/tape
+  t.true(typeof all === 'function', 'all is a Function');
+  t.true(all([4,1,2,3]), 'Returns true for arrays with no falsey values');
+  t.false(all([0,1]), 'Returns false for arrays with 0');
+  t.false(all([NaN,1]), 'Returns false for arrays with NaN');
+  t.false(all([undefined,1]), 'Returns false for arrays with undefined');
+  t.false(all([null,1]), 'Returns false for arrays with null');
+  t.false(all(['',1]), 'Returns false for arrays with empty strings');
+  //t.deepEqual(all(args..), 'Expected');
+  //t.equal(all(args..), 'Expected');
+  //t.false(all(args..), 'Expected');
+  //t.throws(all(args..), 'Expected');
+  t.end();
+});

test/allBy/allBy.js

@@ -0,0 +1,2 @@
+const allBy = (arr, fn) => arr.every(fn);
+module.exports = allBy;

test/allBy/allBy.test.js

@@ -0,0 +1,15 @@
+const test = require('tape');
+const allBy = require('./allBy.js');
+
+test('Testing allBy', (t) => {
+  //For more information on all the methods supported by tape
+  //Please go to https://github.com/substack/tape
+  t.true(typeof allBy === 'function', 'allBy is a Function');
+  t.true(allBy([4,1,2,3], x => x >= 1), 'Returns true with predicate function');
+  t.false(allBy([0,1], x => x >= 1), 'Returns false with a predicate function');
+  //t.deepEqual(allBy(args..), 'Expected');
+  //t.equal(allBy(args..), 'Expected');
+  //t.false(allBy(args..), 'Expected');
+  //t.throws(allBy(args..), 'Expected');
+  t.end();
+});

test/any/any.js

@@ -0,0 +1,2 @@
+const any = arr => arr.some(Boolean);
+module.exports = any;

test/any/any.test.js

@@ -0,0 +1,16 @@
+const test = require('tape');
+const any = require('./any.js');
+
+test('Testing any', (t) => {
+  //For more information on all the methods supported by tape
+  //Please go to https://github.com/substack/tape
+  t.true(typeof any === 'function', 'any is a Function');
+  t.true(any([0,1,2,3]), 'Returns true for arrays with at least one truthy value');
+  t.false(any([0,0]), 'Returns false for arrays with no truthy values');
+  t.false(any([NaN,0,undefined,null,'']), 'Returns false for arrays with no truthy values');
+  //t.deepEqual(any(args..), 'Expected');
+  //t.equal(any(args..), 'Expected');
+  //t.false(any(args..), 'Expected');
+  //t.throws(any(args..), 'Expected');
+  t.end();
+});

test/anyBy/anyBy.js

@@ -0,0 +1,2 @@
+const anyBy = (arr, fn) => arr.some(fn);
+module.exports = anyBy;

test/anyBy/anyBy.test.js

@@ -0,0 +1,15 @@
+const test = require('tape');
+const anyBy = require('./anyBy.js');
+
+test('Testing anyBy', (t) => {
+  //For more information on all the methods supported by tape
+  //Please go to https://github.com/substack/tape
+  t.true(typeof anyBy === 'function', 'anyBy is a Function');
+  t.true(anyBy([4,1,0,3], x => x >= 1), 'Returns true with predicate function');
+  t.false(anyBy([0,1], x => x < 0), 'Returns false with a predicate function');
+  //t.deepEqual(anyBy(args..), 'Expected');
+  //t.equal(anyBy(args..), 'Expected');
+  //t.false(anyBy(args..), 'Expected');
+  //t.throws(anyBy(args..), 'Expected');
+  t.end();
+});

test/none/none.js

@@ -0,0 +1,2 @@
+const none = arr => !arr.some(Boolean);
+module.exports = none;

test/none/none.test.js

@@ -0,0 +1,15 @@
+const test = require('tape');
+const none = require('./none.js');
+
+test('Testing none', (t) => {
+  //For more information on all the methods supported by tape
+  //Please go to https://github.com/substack/tape
+  t.true(typeof none === 'function', 'none is a Function');
+  t.true(none([0,undefined,NaN,null,'']), 'Returns true for arrays with no truthy values');
+  t.false(none([0,1]), 'Returns false for arrays with at least one truthy value');
+  //t.deepEqual(none(args..), 'Expected');
+  //t.equal(none(args..), 'Expected');
+  //t.false(none(args..), 'Expected');
+  //t.throws(none(args..), 'Expected');
+  t.end();
+});

test/noneBy/noneBy.js

@@ -0,0 +1,2 @@
+const noneBy = (arr, fn) => !arr.some(fn);
+module.exports = noneBy;

test/noneBy/noneBy.test.js

@@ -0,0 +1,15 @@
+const test = require('tape');
+const noneBy = require('./noneBy.js');
+
+test('Testing noneBy', (t) => {
+  //For more information on all the methods supported by tape
+  //Please go to https://github.com/substack/tape
+  t.true(typeof noneBy === 'function', 'noneBy is a Function');
+  t.true(noneBy([4,1,0,3], x => x < 0), 'Returns true with a predicate function');
+  t.false(noneBy([0,1,2], x => x == 1), 'Returns false with predicate function');
+  //t.deepEqual(noneBy(args..), 'Expected');
+  //t.equal(noneBy(args..), 'Expected');
+  //t.false(noneBy(args..), 'Expected');
+  //t.throws(noneBy(args..), 'Expected');
+  t.end();
+});