async - npm Package Compare versions

Comparing version 2.0.0 to 2.0.1

auto.js

@@ -145,3 +145,3 @@ 'use strict';
             (0, _arrayEach2.default)(getDependents(currentTask), function (dependent) {
-                if (! --uncheckedDependencies[dependent]) {
+                if (--uncheckedDependencies[dependent] === 0) {
                     readyToCheck.push(dependent);
@@ -148,0 +148,0 @@ }

CHANGELOG.md

@@ -0,1 +1,5 @@
+# v2.0.1
+
+- Significantly optimized all iteration based collection methods such as `each`, `map`, `filter`, etc (#1245, #1246, #1247).
+
 # v2.0.0
@@ -2,0 +6,0 @@

dist/async.min.js

@@ -1,2 +0,2 @@
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each.js

@@ -6,10 +6,11 @@ 'use strict';
 });
+exports.default = eachLimit;
 
-var _eachLimit = require('./eachLimit');
+var _eachOf = require('./eachOf');
 
-var _eachLimit2 = _interopRequireDefault(_eachLimit);
+var _eachOf2 = _interopRequireDefault(_eachOf);
 
-var _doLimit = require('./internal/doLimit');
+var _withoutIndex = require('./internal/withoutIndex');
 
-var _doLimit2 = _interopRequireDefault(_doLimit);
+var _withoutIndex2 = _interopRequireDefault(_withoutIndex);
 
@@ -77,3 +78,5 @@ function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
  */
-exports.default = (0, _doLimit2.default)(_eachLimit2.default, Infinity);
+function eachLimit(coll, iteratee, callback) {
+  (0, _eachOf2.default)(coll, (0, _withoutIndex2.default)(iteratee), callback);
+}
 module.exports = exports['default'];

eachOf.js

 'use strict';
 
 Object.defineProperty(exports, "__esModule", {
-  value: true
+    value: true
 });
 
+exports.default = function (coll, iteratee, callback) {
+    var eachOfImplementation = (0, _isArrayLike2.default)(coll) ? eachOfArrayLike : eachOfGeneric;
+    eachOfImplementation(coll, iteratee, callback);
+};
+
+var _isArrayLike = require('lodash/isArrayLike');
+
+var _isArrayLike2 = _interopRequireDefault(_isArrayLike);
+
 var _eachOfLimit = require('./eachOfLimit');
@@ -15,4 +24,42 @@
 
+var _noop = require('lodash/noop');
+
+var _noop2 = _interopRequireDefault(_noop);
+
+var _once = require('lodash/once');
+
+var _once2 = _interopRequireDefault(_once);
+
+var _onlyOnce = require('./internal/onlyOnce');
+
+var _onlyOnce2 = _interopRequireDefault(_onlyOnce);
+
 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
 
+// eachOf implementation optimized for array-likes
+function eachOfArrayLike(coll, iteratee, callback) {
+    callback = (0, _once2.default)(callback || _noop2.default);
+    var index = 0,
+        completed = 0,
+        length = coll.length;
+    if (length === 0) {
+        callback(null);
+    }
+
+    function iteratorCallback(err) {
+        if (err) {
+            callback(err);
+        } else if (++completed === length) {
+            callback(null);
+        }
+    }
+
+    for (; index < length; index++) {
+        iteratee(coll[index], index, (0, _onlyOnce2.default)(iteratorCallback));
+    }
+}
+
+// a generic version of eachOf which can handle array, object, and iterator cases.
+var eachOfGeneric = (0, _doLimit2.default)(_eachOfLimit2.default, Infinity);
+
 /**
@@ -59,3 +106,2 @@ * Like [`each`]{@link module:Collections.each}, except that it passes the key (or index) as the second argument
  */
-exports.default = (0, _doLimit2.default)(_eachOfLimit2.default, Infinity);
 module.exports = exports['default'];

every.js

@@ -7,10 +7,14 @@ 'use strict';
 
-var _everyLimit = require('./everyLimit');
+var _createTester = require('./internal/createTester');
 
-var _everyLimit2 = _interopRequireDefault(_everyLimit);
+var _createTester2 = _interopRequireDefault(_createTester);
 
-var _doLimit = require('./internal/doLimit');
+var _eachOf = require('./eachOf');
 
-var _doLimit2 = _interopRequireDefault(_doLimit);
+var _eachOf2 = _interopRequireDefault(_eachOf);
 
+var _notId = require('./internal/notId');
+
+var _notId2 = _interopRequireDefault(_notId);
+
 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
@@ -46,3 +50,3 @@
  */
-exports.default = (0, _doLimit2.default)(_everyLimit2.default, Infinity);
+exports.default = (0, _createTester2.default)(_eachOf2.default, _notId2.default, _notId2.default);
 module.exports = exports['default'];

filter.js

@@ -7,9 +7,9 @@ 'use strict';
 
-var _filterLimit = require('./filterLimit');
+var _filter = require('./internal/filter');
 
-var _filterLimit2 = _interopRequireDefault(_filterLimit);
+var _filter2 = _interopRequireDefault(_filter);
 
-var _doLimit = require('./internal/doLimit');
+var _doParallel = require('./internal/doParallel');
 
-var _doLimit2 = _interopRequireDefault(_doLimit);
+var _doParallel2 = _interopRequireDefault(_doParallel);
 
@@ -45,3 +45,3 @@ function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
  */
-exports.default = (0, _doLimit2.default)(_filterLimit2.default, Infinity);
+exports.default = (0, _doParallel2.default)(_filter2.default);
 module.exports = exports['default'];

internal/eachOfLimit.js

@@ -29,17 +29,23 @@ 'use strict';
         callback = (0, _once2.default)(callback || _noop2.default);
-        obj = obj || [];
-        var nextElem = (0, _iterator2.default)(obj);
-        if (limit <= 0) {
+        if (limit <= 0 || !obj) {
             return callback(null);
         }
+        var nextElem = (0, _iterator2.default)(obj);
         var done = false;
         var running = 0;
-        var errored = false;
 
-        (function replenish() {
-            if (done && running <= 0) {
+        function iterateeCallback(err) {
+            running -= 1;
+            if (err) {
+                done = true;
+                callback(err);
+            } else if (done && running <= 0) {
                 return callback(null);
+            } else {
+                replenish();
             }
+        }
 
-            while (running < limit && !errored) {
+        function replenish() {
+            while (running < limit && !done) {
                 var elem = nextElem();
@@ -54,16 +60,9 @@ if (elem === null) {
                 running += 1;
-                /* eslint {no-loop-func: 0} */
-                iteratee(elem.value, elem.key, (0, _onlyOnce2.default)(function (err) {
-                    running -= 1;
-                    if (err) {
-                        callback(err);
-                        errored = true;
-                    } else {
-                        replenish();
-                    }
-                }));
+                iteratee(elem.value, elem.key, (0, _onlyOnce2.default)(iterateeCallback));
             }
-        })();
+        }
+
+        replenish();
     };
 }
 module.exports = exports['default'];

internal/iterator.js

@@ -22,31 +22,38 @@ 'use strict';
 
-function iterator(coll) {
+function createArrayIterator(coll) {
     var i = -1;
-    var len;
-    if ((0, _isArrayLike2.default)(coll)) {
-        len = coll.length;
-        return function next() {
-            i++;
-            return i < len ? { value: coll[i], key: i } : null;
-        };
-    }
+    var len = coll.length;
+    return function next() {
+        return ++i < len ? { value: coll[i], key: i } : null;
+    };
+}
 
-    var iterate = (0, _getIterator2.default)(coll);
-    if (iterate) {
-        return function next() {
-            var item = iterate.next();
-            if (item.done) return null;
-            i++;
-            return { value: item.value, key: i };
-        };
-    }
-
-    var okeys = (0, _keys2.default)(coll);
-    len = okeys.length;
+function createES2015Iterator(iterator) {
+    var i = -1;
     return function next() {
+        var item = iterator.next();
+        if (item.done) return null;
         i++;
-        var key = okeys[i];
-        return i < len ? { value: coll[key], key: key } : null;
+        return { value: item.value, key: i };
     };
 }
+
+function createObjectIterator(obj) {
+    var okeys = (0, _keys2.default)(obj);
+    var i = -1;
+    var len = okeys.length;
+    return function next() {
+        var key = okeys[++i];
+        return i < len ? { value: obj[key], key: key } : null;
+    };
+}
+
+function iterator(coll) {
+    if ((0, _isArrayLike2.default)(coll)) {
+        return createArrayIterator(coll);
+    }
+
+    var iterator = (0, _getIterator2.default)(coll);
+    return iterator ? createES2015Iterator(iterator) : createObjectIterator(coll);
+}
 module.exports = exports['default'];

internal/queue.js

@@ -45,3 +45,3 @@ 'use strict';
 
-    function _insert(data, pos, callback) {
+    function _insert(data, insertAtFront, callback) {
         if (callback != null && typeof callback !== 'function') {
@@ -66,3 +66,3 @@ throw new Error('task callback must be a function');
 
-            if (pos) {
+            if (insertAtFront) {
                 q._tasks.unshift(item);
@@ -69,0 +69,0 @@ } else {

map.js

@@ -7,9 +7,9 @@ 'use strict';
 
-var _mapLimit = require('./mapLimit');
+var _doParallel = require('./internal/doParallel');
 
-var _mapLimit2 = _interopRequireDefault(_mapLimit);
+var _doParallel2 = _interopRequireDefault(_doParallel);
 
-var _doLimit = require('./internal/doLimit');
+var _map = require('./internal/map');
 
-var _doLimit2 = _interopRequireDefault(_doLimit);
+var _map2 = _interopRequireDefault(_map);
 
@@ -54,3 +54,3 @@ function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
  */
-exports.default = (0, _doLimit2.default)(_mapLimit2.default, Infinity);
+exports.default = (0, _doParallel2.default)(_map2.default);
 module.exports = exports['default'];

package.json

 {
   "name": "async",
   "description": "Higher-order functions and common patterns for asynchronous code",
-  "version": "2.0.0",
+  "version": "2.0.1",
   "main": "dist/async.js",
@@ -6,0 +6,0 @@ "author": "Caolan McMahon",

parallel.js

@@ -6,10 +6,11 @@ 'use strict';
 });
+exports.default = parallelLimit;
 
-var _parallelLimit = require('./parallelLimit');
+var _eachOf = require('./eachOf');
 
-var _parallelLimit2 = _interopRequireDefault(_parallelLimit);
+var _eachOf2 = _interopRequireDefault(_eachOf);
 
-var _doLimit = require('./internal/doLimit');
+var _parallel = require('./internal/parallel');
 
-var _doLimit2 = _interopRequireDefault(_doLimit);
+var _parallel2 = _interopRequireDefault(_parallel);
 
@@ -84,3 +85,5 @@ function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
  */
-exports.default = (0, _doLimit2.default)(_parallelLimit2.default, Infinity);
+function parallelLimit(tasks, callback) {
+  (0, _parallel2.default)(_eachOf2.default, tasks, callback);
+}
 module.exports = exports['default'];

queue.js

@@ -27,4 +27,4 @@ 'use strict';
  * waiting to be processed. Invoke with `queue.length()`.
- * @property {Function} started - a function returning whether or not any
- * items have been pushed and processed by the queue. Invoke with `queue.started()`.
+ * @property {boolean} started - a boolean indicating whether or not any
+ * items have been pushed and processed by the queue.
  * @property {Function} running - a function returning the number of items
@@ -31,0 +31,0 @@ * currently being processed. Invoke with `queue.running()`.

reject.js

@@ -7,9 +7,9 @@ 'use strict';
 
-var _rejectLimit = require('./rejectLimit');
+var _reject = require('./internal/reject');
 
-var _rejectLimit2 = _interopRequireDefault(_rejectLimit);
+var _reject2 = _interopRequireDefault(_reject);
 
-var _doLimit = require('./internal/doLimit');
+var _doParallel = require('./internal/doParallel');
 
-var _doLimit2 = _interopRequireDefault(_doLimit);
+var _doParallel2 = _interopRequireDefault(_doParallel);
 
@@ -44,3 +44,3 @@ function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
  */
-exports.default = (0, _doLimit2.default)(_rejectLimit2.default, Infinity);
+exports.default = (0, _doParallel2.default)(_reject2.default);
 module.exports = exports['default'];

some.js

@@ -7,10 +7,14 @@ 'use strict';
 
-var _someLimit = require('./someLimit');
+var _createTester = require('./internal/createTester');
 
-var _someLimit2 = _interopRequireDefault(_someLimit);
+var _createTester2 = _interopRequireDefault(_createTester);
 
-var _doLimit = require('./internal/doLimit');
+var _eachOf = require('./eachOf');
 
-var _doLimit2 = _interopRequireDefault(_doLimit);
+var _eachOf2 = _interopRequireDefault(_eachOf);
 
+var _identity = require('lodash/identity');
+
+var _identity2 = _interopRequireDefault(_identity);
+
 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
@@ -48,3 +52,3 @@
  */
-exports.default = (0, _doLimit2.default)(_someLimit2.default, Infinity);
+exports.default = (0, _createTester2.default)(_eachOf2.default, Boolean, _identity2.default);
 module.exports = exports['default'];

No alert changes

Improved metrics

Total package byte prevSize

425605

increased by3.65%

Lines of code

9873

increased by1.4%

No dependency changes