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Remove compiling from _.every, _.filter, and _.some and add related benchmarks.

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Former-commit-id: 545195dc7085c1294ad8709f44fddb0c3c6a0545
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John-David Dalton
2012-10-19 00:53:48 -07:00
parent 5f5f1b1e09
commit 425b976cc0
5 changed files with 151 additions and 82 deletions
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44
lodash.js
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@@ -419,8 +419,7 @@
);
/**
* Reusable iterator options shared by `every`, `filter`, forEach`, `forIn`,
* `forOwn`, `map`, and `some`.
* Reusable iterator options shared by `forEach`, `forIn`,`forOwn`, and `map`.
*/
var forEachIteratorOptions = {
'args': 'collection, callback, thisArg',
@@ -428,12 +427,6 @@
'inLoop': 'if (callback(value, index, collection) === false) return result'
};
/** Reusable iterator options for `every` and `some` */
var everyIteratorOptions = {
'init': 'true',
'inLoop': 'if (!callback(value, index, collection)) return !result'
};
/** Reusable iterator options for `bindAll`, `defaults`, and `extend` */
var extendIteratorOptions = {
'useHas': false,
@@ -1926,7 +1919,14 @@
* _.every([true, 1, null, 'yes'], Boolean);
* // => false
*/
var every = createIterator(forEachIteratorOptions, everyIteratorOptions);
function every(collection, callback, thisArg) {
var result = true;
callback = createCallback(callback, thisArg);
forEach(collection, function(value, index, collection) {
return (result = callback(value, index, collection));
});
return !!result;
}
/**
* Examines each element in a `collection`, returning an array of all elements
@@ -1946,10 +1946,16 @@
* var evens = _.filter([1, 2, 3, 4, 5, 6], function(num) { return num % 2 == 0; });
* // => [2, 4, 6]
*/
var filter = createIterator(forEachIteratorOptions, {
'init': '[]',
'inLoop': 'callback(value, index, collection) && result.push(value)'
});
function filter(collection, callback, thisArg) {
var result = [];
callback = createCallback(callback, thisArg);
forEach(collection, function(value, index, collection) {
if (callback(value, index, collection)) {
result.push(value);
}
});
return result;
}
/**
* Examines each element in a `collection`, returning the first one the `callback`
@@ -2391,10 +2397,14 @@
* _.some([null, 0, 'yes', false]);
* // => true
*/
var some = createIterator(forEachIteratorOptions, everyIteratorOptions, {
'init': 'false',
'inLoop': everyIteratorOptions.inLoop.replace('!', '')
});
function some(collection, callback, thisArg) {
var result;
callback = createCallback(callback, thisArg);
forEach(collection, function(value, index, collection) {
return !(result = callback(value, index, collection));
});
return !!result;
}
/**
* Creates an array, stable sorted in ascending order by the results of