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perf.js
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perf.js
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;(function() {
/** Used to access the Firebug Lite panel (set by `run`) */
var fbPanel;
/** Used as a safe reference for `undefined` in pre ES5 environments */
var undefined;
/** Used as a reference to the global object */
var root = typeof global == 'object' && global || this;
/** Method and object shortcuts */
var phantom = root.phantom,
amd = root.define && define.amd,
argv = root.process && process.argv,
document = !phantom && root.document,
noop = function() {},
params = root.arguments,
system = root.system;
/** Add `console.log()` support for Narwhal, Rhino, and RingoJS */
var console = root.console || (root.console = { 'log': root.print });
/** The file path of the Lo-Dash file to test */
var filePath = (function() {
var min = 0,
result = [];
if (phantom) {
result = params = phantom.args;
} else if (system) {
min = 1;
result = params = system.args;
} else if (argv) {
min = 2;
result = params = argv;
} else if (params) {
result = params;
}
var last = result[result.length - 1];
result = (result.length > min && !/perf(?:\.js)?$/.test(last)) ? last : '../lodash.js';
if (!amd) {
try {
result = require('fs').realpathSync(result);
} catch(e) { }
try {
result = require.resolve(result);
} catch(e) { }
}
return result;
}());
/** Used to match path separators */
var rePathSeparator = /[\/\\]/;
/** Used to detect primitive types */
var rePrimitive = /^(?:boolean|number|string|undefined)$/;
/** Used to match RegExp special characters */
var reSpecialChars = /[.*+?^=!:${}()|[\]\/\\]/g;
/** The `ui` object */
var ui = root.ui || (root.ui = {
'buildPath': basename(filePath, '.js'),
'otherPath': 'underscore'
});
/** The Lo-Dash build basename */
var buildName = root.buildName = basename(ui.buildPath, '.js');
/** The other library basename */
var otherName = root.otherName = (function() {
var result = basename(ui.otherPath, '.js');
return result + (result == buildName ? ' (2)' : '');
}());
/** Used to score performance */
var score = { 'a': [], 'b': [] };
/** Used to queue benchmark suites */
var suites = [];
/** Used to resolve a value's internal [[Class]] */
var toString = Object.prototype.toString;
/** Detect if in a browser environment */
var isBrowser = isHostType(root, 'document') && isHostType(root, 'navigator');
/** Detect if in a Java environment */
var isJava = !isBrowser && /Java/.test(toString.call(root.java));
/** Use a single "load" function */
var load = (typeof require == 'function' && !amd)
? require
: (isJava && root.load) || noop;
/** Load Lo-Dash */
var lodash = root.lodash || (root.lodash = (
lodash = load(filePath) || root._,
lodash = lodash._ || lodash,
(lodash.runInContext ? lodash.runInContext(root) : lodash),
lodash.noConflict()
));
/** Load Benchmark.js */
var Benchmark = root.Benchmark || (root.Benchmark = (
Benchmark = load('../vendor/benchmark.js/benchmark.js') || root.Benchmark,
Benchmark = Benchmark.Benchmark || Benchmark,
Benchmark.runInContext(lodash.extend({}, root, { '_': lodash }))
));
/** Load Underscore */
var _ = root._ || (root._ = (
_ = load('../vendor/underscore/underscore.js') || root._,
_._ || _
));
/*--------------------------------------------------------------------------*/
/**
* Gets the basename of the given `filePath`. If the file `extension` is passed,
* it will be removed from the basename.
*
* @private
* @param {string} path The file path to inspect.
* @param {string} extension The extension to remove.
* @returns {string} Returns the basename.
*/
function basename(filePath, extension) {
var result = (filePath || '').split(rePathSeparator).pop();
return (arguments.length < 2)
? result
: result.replace(RegExp(extension.replace(reSpecialChars, '\\$&') + '$'), '');
}
/**
* Computes the geometric mean (log-average) of an array of values.
* See http://en.wikipedia.org/wiki/Geometric_mean#Relationship_with_arithmetic_mean_of_logarithms.
*
* @private
* @param {Array} array The array of values.
* @returns {number} The geometric mean.
*/
function getGeometricMean(array) {
return Math.pow(Math.E, lodash.reduce(array, function(sum, x) {
return sum + Math.log(x);
}, 0) / array.length) || 0;
}
/**
* Gets the Hz, i.e. operations per second, of `bench` adjusted for the
* margin of error.
*
* @private
* @param {Object} bench The benchmark object.
* @returns {number} Returns the adjusted Hz.
*/
function getHz(bench) {
var result = 1 / (bench.stats.mean + bench.stats.moe);
return isFinite(result) ? result : 0;
}
/**
* Host objects can return type values that are different from their actual
* data type. The objects we are concerned with usually return non-primitive
* types of "object", "function", or "unknown".
*
* @private
* @param {*} object The owner of the property.
* @param {string} property The property to check.
* @returns {boolean} Returns `true` if the property value is a non-primitive, else `false`.
*/
function isHostType(object, property) {
if (object == null) {
return false;
}
var type = typeof object[property];
return !rePrimitive.test(type) && (type != 'object' || !!object[property]);
}
/**
* Logs text to the console.
*
* @private
* @param {string} text The text to log.
*/
function log(text) {
console.log(text + '');
if (fbPanel) {
// scroll the Firebug Lite panel down
fbPanel.scrollTop = fbPanel.scrollHeight;
}
}
/**
* Runs all benchmark suites.
*
* @private (@public in the browser)
*/
function run() {
fbPanel = (fbPanel = root.document && document.getElementById('FirebugUI')) &&
(fbPanel = (fbPanel = fbPanel.contentWindow || fbPanel.contentDocument).document || fbPanel) &&
fbPanel.getElementById('fbPanel1');
log('\nSit back and relax, this may take a while.');
suites[0].run({ 'async': !isJava });
}
/*--------------------------------------------------------------------------*/
lodash.extend(Benchmark.Suite.options, {
'onStart': function() {
log('\n' + this.name + ':');
},
'onCycle': function(event) {
log(event.target);
},
'onComplete': function() {
for (var index = 0, length = this.length; index < length; index++) {
var bench = this[index];
if (bench.error) {
var errored = true;
}
}
if (errored) {
log('There was a problem, skipping...');
}
else {
var formatNumber = Benchmark.formatNumber,
fastest = this.filter('fastest'),
fastestHz = getHz(fastest[0]),
slowest = this.filter('slowest'),
slowestHz = getHz(slowest[0]),
aHz = getHz(this[0]),
bHz = getHz(this[1]);
if (fastest.length > 1) {
log('It\'s too close to call.');
aHz = bHz = slowestHz;
}
else {
var percent = ((fastestHz / slowestHz) - 1) * 100;
log(
fastest[0].name + ' is ' +
formatNumber(percent < 1 ? percent.toFixed(2) : Math.round(percent)) +
'% faster.'
);
}
// add score adjusted for margin of error
score.a.push(aHz);
score.b.push(bHz);
}
// remove current suite from queue
suites.shift();
if (suites.length) {
// run next suite
suites[0].run({ 'async': !isJava });
}
else {
var aMeanHz = getGeometricMean(score.a),
bMeanHz = getGeometricMean(score.b),
fastestMeanHz = Math.max(aMeanHz, bMeanHz),
slowestMeanHz = Math.min(aMeanHz, bMeanHz),
xFaster = fastestMeanHz / slowestMeanHz,
percentFaster = formatNumber(Math.round((xFaster - 1) * 100)),
message = 'is ' + percentFaster + '% ' + (xFaster == 1 ? '' : '(' + formatNumber(xFaster.toFixed(2)) + 'x) ') + 'faster than';
// report results
if (aMeanHz >= bMeanHz) {
log('\n' + buildName + ' ' + message + ' ' + otherName + '.');
} else {
log('\n' + otherName + ' ' + message + ' ' + buildName + '.');
}
}
}
});
/*--------------------------------------------------------------------------*/
lodash.extend(Benchmark.options, {
'async': true,
'setup': '\
var _ = global._,\
lodash = global.lodash,\
belt = this.name == buildName ? lodash : _;\
\
var date = new Date,\
limit = 20,\
regexp = /x/,\
object = {},\
objects = Array(limit),\
numbers = Array(limit),\
fourNumbers = [5, 25, 10, 30],\
nestedNumbers = [1, [2], [3, [[4]]]],\
nestedObjects = [{}, [{}], [{}, [[{}]]]],\
twoNumbers = [12, 23];\
\
for (var index = 0; index < limit; index++) {\
numbers[index] = index;\
object["key" + index] = index;\
objects[index] = { "num": index };\
}\
var strNumbers = numbers + "";\
\
if (typeof bind != "undefined") {\
var thisArg = { "name": "fred" };\
\
var func = function(greeting, punctuation) {\
return (greeting || "hi") + " " + this.name + (punctuation || ".");\
};\
\
var _boundNormal = _.bind(func, thisArg),\
_boundMultiple = _boundNormal,\
_boundPartial = _.bind(func, thisArg, "hi");\
\
var lodashBoundNormal = lodash.bind(func, thisArg),\
lodashBoundMultiple = lodashBoundNormal,\
lodashBoundPartial = lodash.bind(func, thisArg, "hi");\
\
for (index = 0; index < 10; index++) {\
_boundMultiple = _.bind(_boundMultiple, { "name": "fred" + index });\
lodashBoundMultiple = lodash.bind(lodashBoundMultiple, { "name": "fred" + index });\
}\
}\
if (typeof bindAll != "undefined") {\
var bindAllCount = -1,\
bindAllObjects = Array(this.count);\
\
var funcNames = belt.reject(belt.functions(belt).slice(0, 40), function(funcName) {\
return /^_/.test(funcName);\
});\
\
// potentially expensive\n\
for (index = 0; index < this.count; index++) {\
bindAllObjects[index] = belt.reduce(funcNames, function(object, funcName) {\
object[funcName] = belt[funcName];\
return object;\
}, {});\
}\
}\
if (typeof chaining != "undefined") {\
var _chaining = _.chain ? _(numbers).chain() : _(numbers),\
lodashChaining = lodash(numbers);\
}\
if (typeof compact != "undefined") {\
var uncompacted = numbers.slice();\
uncompacted[2] = false;\
uncompacted[6] = null;\
uncompacted[18] = "";\
}\
if (typeof compose != "undefined") {\
var compAddOne = function(n) { return n + 1; },\
compAddTwo = function(n) { return n + 2; },\
compAddThree = function(n) { return n + 3; };\
\
var _composed = _.compose(compAddThree, compAddTwo, compAddOne),\
lodashComposed = lodash.compose(compAddThree, compAddTwo, compAddOne);\
}\
if (typeof countBy != "undefined" || typeof omit != "undefined") {\
var wordToNumber = {\
"one": 1,\
"two": 2,\
"three": 3,\
"four": 4,\
"five": 5,\
"six": 6,\
"seven": 7,\
"eight": 8,\
"nine": 9,\
"ten": 10,\
"eleven": 11,\
"twelve": 12,\
"thirteen": 13,\
"fourteen": 14,\
"fifteen": 15,\
"sixteen": 16,\
"seventeen": 17,\
"eighteen": 18,\
"nineteen": 19,\
"twenty": 20,\
"twenty-one": 21,\
"twenty-two": 22,\
"twenty-three": 23,\
"twenty-four": 24,\
"twenty-five": 25,\
"twenty-six": 26,\
"twenty-seven": 27,\
"twenty-eight": 28,\
"twenty-nine": 29,\
"thirty": 30,\
"thirty-one": 31,\
"thirty-two": 32,\
"thirty-three": 33,\
"thirty-four": 34,\
"thirty-five": 35,\
"thirty-six": 36,\
"thirty-seven": 37,\
"thirty-eight": 38,\
"thirty-nine": 39,\
"forty": 40\
};\
\
var words = belt.keys(wordToNumber).slice(0, limit);\
}\
if (typeof isEqual != "undefined") {\
var objectOfPrimitives = {\
"boolean": true,\
"number": 1,\
"string": "a"\
};\
\
var objectOfObjects = {\
"boolean": new Boolean(true),\
"number": new Number(1),\
"string": new String("a")\
};\
\
var object2 = {},\
objects2 = Array(limit),\
numbers2 = Array(limit),\
nestedNumbers2 = [1, [2], [3, [[4]]]],\
nestedNumbers3 = [1, [2], [5, [[6]]]],\
simpleObject = { "a": 1 },\
simpleObject2 = { "a": 2 },\
simpleObjects = [simpleObject],\
simpleObjects2 = [simpleObject2],\
twoNumbers2 = [18, 27];\
\
for (index = 0; index < limit; index++) {\
object2["key" + index] = index;\
objects2[index] = { "num": index };\
numbers2[index] = index;\
}\
}\
if (typeof multiArrays != "undefined") {\
var twentyValues = belt.shuffle(belt.range(20)),\
fortyValues = belt.shuffle(belt.range(40)),\
hundredValues = belt.shuffle(belt.range(100)),\
hundredValues2 = belt.shuffle(belt.range(100)),\
hundredTwentyValues = belt.shuffle(belt.range(120)),\
hundredTwentyValues2 = belt.shuffle(belt.range(120)),\
twoHundredValues = belt.shuffle(belt.range(200)),\
twoHundredValues2 = belt.shuffle(belt.range(200));\
}\
if (typeof partial != "undefined") {\
var func = function(greeting, punctuation) {\
return greeting + " fred" + (punctuation || ".");\
};\
\
var _partial = _.partial(func, "hi"),\
lodashPartial = lodash.partial(func, "hi");\
}\
if (typeof template != "undefined") {\
var tplData = {\
"header1": "Header1",\
"header2": "Header2",\
"header3": "Header3",\
"header4": "Header4",\
"header5": "Header5",\
"header6": "Header6",\
"list": ["1", "2", "3", "4", "5", "6", "7", "8", "9", "10"]\
};\
\
var tpl =\
"<div>" +\
"<h1 class=\'header1\'><%= header1 %></h1>" +\
"<h2 class=\'header2\'><%= header2 %></h2>" +\
"<h3 class=\'header3\'><%= header3 %></h3>" +\
"<h4 class=\'header4\'><%= header4 %></h4>" +\
"<h5 class=\'header5\'><%= header5 %></h5>" +\
"<h6 class=\'header6\'><%= header6 %></h6>" +\
"<ul class=\'list\'>" +\
"<% for (var index = 0, length = list.length; index < length; index++) { %>" +\
"<li class=\'item\'><%= list[index] %></li>" +\
"<% } %>" +\
"</ul>" +\
"</div>";\
\
var tplVerbose =\
"<div>" +\
"<h1 class=\'header1\'><%= data.header1 %></h1>" +\
"<h2 class=\'header2\'><%= data.header2 %></h2>" +\
"<h3 class=\'header3\'><%= data.header3 %></h3>" +\
"<h4 class=\'header4\'><%= data.header4 %></h4>" +\
"<h5 class=\'header5\'><%= data.header5 %></h5>" +\
"<h6 class=\'header6\'><%= data.header6 %></h6>" +\
"<ul class=\'list\'>" +\
"<% for (var index = 0, length = data.list.length; index < length; index++) { %>" +\
"<li class=\'item\'><%= data.list[index] %></li>" +\
"<% } %>" +\
"</ul>" +\
"</div>";\
\
var settingsObject = { "variable": "data" };\
\
var _tpl = _.template(tpl),\
_tplVerbose = _.template(tplVerbose, null, settingsObject);\
\
var lodashTpl = lodash.template(tpl),\
lodashTplVerbose = lodash.template(tplVerbose, null, settingsObject);\
}\
if (typeof where != "undefined") {\
var _findWhere = _.findWhere || _.find,\
lodashFindWhere = lodash.findWhere || lodash.find,\
whereObject = { "num": 9 };\
}\
if (typeof wrap != "undefined") {\
var add = function(a, b) {\
return a + b;\
};\
\
var average = function(func, a, b) {\
return (func(a, b) / 2).toFixed(2);\
};\
\
var _wrapped = _.wrap(add, average);\
lodashWrapped = lodash.wrap(add, average);\
}\
if (typeof zip != "undefined") {\
var unzipped = [["a", "b", "c"], [1, 2, 3], [true, false, true]];\
}'
});
/*--------------------------------------------------------------------------*/
suites.push(
Benchmark.Suite('`_(...)` with a number')
.add(buildName, '\
lodash(2)'
)
.add(otherName, '\
_(2)'
)
);
suites.push(
Benchmark.Suite('`_(...)` with an array')
.add(buildName, '\
lodash(numbers)'
)
.add(otherName, '\
_(numbers)'
)
);
suites.push(
Benchmark.Suite('`_(...)` with an object (slow path)')
.add(buildName, '\
lodash(object)'
)
.add(otherName, '\
_(object)'
)
);
// avoid Underscore induced `OutOfMemoryError` in Rhino, Narwhal, and Ringo
if (!isJava) {
suites.push(
Benchmark.Suite('`_(...).tap(...)`')
.add(buildName, {
'fn': 'lodashChaining.tap(lodash.identity)',
'teardown': 'function chaining(){}'
})
.add(otherName, {
'fn': '_chaining.tap(_.identity)',
'teardown': 'function chaining(){}'
})
);
}
/*--------------------------------------------------------------------------*/
suites.push(
Benchmark.Suite('`_.bind` (slow path)')
.add(buildName, {
'fn': 'lodash.bind(func, { "name": "fred" })',
'teardown': 'function bind(){}'
})
.add(otherName, {
'fn': '_.bind(func, { "name": "fred" })',
'teardown': 'function bind(){}'
})
);
suites.push(
Benchmark.Suite('bound call with arguments')
.add(buildName, {
'fn': 'lodashBoundNormal("hi", "!")',
'teardown': 'function bind(){}'
})
.add(otherName, {
'fn': '_boundNormal("hi", "!")',
'teardown': 'function bind(){}'
})
);
suites.push(
Benchmark.Suite('bound and partially applied call with arguments')
.add(buildName, {
'fn': 'lodashBoundPartial("!")',
'teardown': 'function bind(){}'
})
.add(otherName, {
'fn': '_boundPartial("!")',
'teardown': 'function bind(){}'
})
);
suites.push(
Benchmark.Suite('bound multiple times')
.add(buildName, {
'fn': 'lodashBoundMultiple()',
'teardown': 'function bind(){}'
})
.add(otherName, {
'fn': '_boundMultiple()',
'teardown': 'function bind(){}'
})
);
/*--------------------------------------------------------------------------*/
suites.push(
Benchmark.Suite('`_.bindAll` iterating arguments')
.add(buildName, {
'fn': 'lodash.bindAll.apply(lodash, [bindAllObjects[++bindAllCount]].concat(funcNames))',
'teardown': 'function bindAll(){}'
})
.add(otherName, {
'fn': '_.bindAll.apply(_, [bindAllObjects[++bindAllCount]].concat(funcNames))',
'teardown': 'function bindAll(){}'
})
);
suites.push(
Benchmark.Suite('`_.bindAll` iterating the `object`')
.add(buildName, {
'fn': 'lodash.bindAll(bindAllObjects[++bindAllCount])',
'teardown': 'function bindAll(){}'
})
.add(otherName, {
'fn': '_.bindAll(bindAllObjects[++bindAllCount])',
'teardown': 'function bindAll(){}'
})
);
/*--------------------------------------------------------------------------*/
suites.push(
Benchmark.Suite('`_.clone` with an object')
.add(buildName, '\
lodash.clone(object)'
)
.add(otherName, '\
_.clone(object)'
)
);
/*--------------------------------------------------------------------------*/
suites.push(
Benchmark.Suite('`_.compact`')
.add(buildName, {
'fn': 'lodash.compact(uncompacted)',
'teardown': 'function compact(){}'
})
.add(otherName, {
'fn': '_.compact(uncompacted)',
'teardown': 'function compact(){}'
})
);
/*--------------------------------------------------------------------------*/
suites.push(
Benchmark.Suite('`_.compose`')
.add(buildName, {
'fn': 'lodash.compose(compAddThree, compAddTwo, compAddOne)',
'teardown': 'function compose(){}'
})
.add(otherName, {
'fn': '_.compose(compAddThree, compAddTwo, compAddOne)',
'teardown': 'function compose(){}'
})
);
suites.push(
Benchmark.Suite('composed call')
.add(buildName, {
'fn': 'lodashComposed(0)',
'teardown': 'function compose(){}'
})
.add(otherName, {
'fn': '_composed(0)',
'teardown': 'function compose(){}'
})
);
/*--------------------------------------------------------------------------*/
suites.push(
Benchmark.Suite('`_.contains` iterating an array')
.add(buildName, '\
lodash.contains(numbers, limit - 1)'
)
.add(otherName, '\
_.contains(numbers, limit - 1)'
)
);
suites.push(
Benchmark.Suite('`_.contains` iterating an object')
.add(buildName, '\
lodash.contains(object, limit - 1)'
)
.add(otherName, '\
_.contains(object, limit - 1)'
)
);
if (lodash.contains('ab', 'ab') && _.contains('ab', 'ab')) {
suites.push(
Benchmark.Suite('`_.contains` iterating a string')
.add(buildName, '\
lodash.contains(strNumbers, "," + (limit - 1))'
)
.add(otherName, '\
_.contains(strNumbers, "," + (limit - 1))'
)
);
}
/*--------------------------------------------------------------------------*/
suites.push(
Benchmark.Suite('`_.countBy` with `callback` iterating an array')
.add(buildName, '\
lodash.countBy(numbers, function(num) { return num >> 1; })'
)
.add(otherName, '\
_.countBy(numbers, function(num) { return num >> 1; })'
)
);
suites.push(
Benchmark.Suite('`_.countBy` with `property` name iterating an array')
.add(buildName, {
'fn': 'lodash.countBy(words, "length")',
'teardown': 'function countBy(){}'
})
.add(otherName, {
'fn': '_.countBy(words, "length")',
'teardown': 'function countBy(){}'
})
);
suites.push(
Benchmark.Suite('`_.countBy` with `callback` iterating an object')
.add(buildName, {
'fn': 'lodash.countBy(wordToNumber, function(num) { return num >> 1; })',
'teardown': 'function countBy(){}'
})
.add(otherName, {
'fn': '_.countBy(wordToNumber, function(num) { return num >> 1; })',
'teardown': 'function countBy(){}'
})
);
/*--------------------------------------------------------------------------*/
suites.push(
Benchmark.Suite('`_.defaults`')
.add(buildName, '\
lodash.defaults({ "key2": 2, "key6": 6, "key18": 18 }, object)'
)
.add(otherName, '\
_.defaults({ "key2": 2, "key6": 6, "key18": 18 }, object)'
)
);
/*--------------------------------------------------------------------------*/
suites.push(
Benchmark.Suite('`_.difference`')
.add(buildName, '\
lodash.difference(numbers, twoNumbers, fourNumbers)'
)
.add(otherName, '\
_.difference(numbers, twoNumbers, fourNumbers)'
)
);
suites.push(
Benchmark.Suite('`_.difference` iterating 200 elements')
.add(buildName, {
'fn': 'lodash.difference(twoHundredValues, twoHundredValues2)',
'teardown': 'function multiArrays(){}'
})
.add(otherName, {
'fn': '_.difference(twoHundredValues, twoHundredValues2)',
'teardown': 'function multiArrays(){}'
})
);
suites.push(
Benchmark.Suite('`_.difference` iterating 20 and 40 elements')
.add(buildName, {
'fn': 'lodash.difference(twentyValues, fortyValues)',
'teardown': 'function multiArrays(){}'
})
.add(otherName, {
'fn': '_.difference(twentyValues, fortyValues)',
'teardown': 'function multiArrays(){}'
})
);
/*--------------------------------------------------------------------------*/
suites.push(
Benchmark.Suite('`_.each` iterating an array')
.add(buildName, '\
var result = [];\
lodash.each(numbers, function(num) {\
result.push(num * 2);\
})'
)
.add(otherName, '\
var result = [];\
_.each(numbers, function(num) {\
result.push(num * 2);\
})'
)
);
suites.push(
Benchmark.Suite('`_.each` iterating an array with `thisArg` (slow path)')
.add(buildName, '\
var result = [];\
lodash.each(numbers, function(num, index) {\
result.push(num + this["key" + index]);\
}, object)'
)
.add(otherName, '\
var result = [];\
_.each(numbers, function(num, index) {\
result.push(num + this["key" + index]);\
}, object)'
)
);
suites.push(
Benchmark.Suite('`_.each` iterating an object')
.add(buildName, '\
var result = [];\
lodash.each(object, function(num) {\
result.push(num * 2);\
})'
)
.add(otherName, '\
var result = [];\
_.each(object, function(num) {\
result.push(num * 2);\
})'
)
);
/*--------------------------------------------------------------------------*/
suites.push(
Benchmark.Suite('`_.every` iterating an array')
.add(buildName, '\
lodash.every(numbers, function(num) {\
return num < limit;\
})'
)
.add(otherName, '\
_.every(numbers, function(num) {\
return num < limit;\
})'
)
);
suites.push(
Benchmark.Suite('`_.every` iterating an object')
.add(buildName, '\
lodash.every(object, function(num) {\
return num < limit;\
})'
)
.add(otherName, '\
_.every(object, function(num) {\
return num < limit;\
})'
)
);
/*--------------------------------------------------------------------------*/
suites.push(
Benchmark.Suite('`_.extend`')
.add(buildName, '\
lodash.extend({}, object)'
)
.add(otherName, '\
_.extend({}, object)'
)
);
/*--------------------------------------------------------------------------*/
suites.push(
Benchmark.Suite('`_.filter` iterating an array')
.add(buildName, '\
lodash.filter(numbers, function(num) {\
return num % 2;\
})'
)
.add(otherName, '\
_.filter(numbers, function(num) {\
return num % 2;\
})'
)
);
suites.push(
Benchmark.Suite('`_.filter` iterating an array with `thisArg` (slow path)')
.add(buildName, '\
lodash.filter(numbers, function(num, index) {\
return this["key" + index] % 2;\
}, object)'
)
.add(otherName, '\
_.filter(numbers, function(num, index) {\
return this["key" + index] % 2;\
}, object)'
)
);
suites.push(
Benchmark.Suite('`_.filter` iterating an object')
.add(buildName, '\
lodash.filter(object, function(num) {\
return num % 2\
})'
)
.add(otherName, '\
_.filter(object, function(num) {\
return num % 2\
})'
)
);
/*--------------------------------------------------------------------------*/
suites.push(
Benchmark.Suite('`_.find` iterating an array')
.add(buildName, '\
lodash.find(numbers, function(num) {\
return num === (limit - 1);\
})'
)
.add(otherName, '\
_.find(numbers, function(num) {\
return num === (limit - 1);\
})'
)
);
suites.push(
Benchmark.Suite('`_.find` iterating an object')
.add(buildName, '\
lodash.find(object, function(value, key) {\
return /\D9$/.test(key);\
})'
)
.add(otherName, '\
_.find(object, function(value, key) {\
return /\D9$/.test(key);\
})'
)
);
// avoid Underscore induced `OutOfMemoryError` in Rhino, Narwhal, and Ringo
if (!isJava) {
suites.push(
Benchmark.Suite('`_.find` with `properties`')
.add(buildName, {
'fn': 'lodashFindWhere(objects, whereObject)',
'teardown': 'function where(){}'
})
.add(otherName, {
'fn': '_findWhere(objects, whereObject)',
'teardown': 'function where(){}'
})
);
}