Benchmark: Compare lodash isEmpty and length comparison on arrays, stings and custom function isEmpty

Compare lodash isEmpty and length comparison on arrays, stings and custom function isEmpty (version: 0)

Comparing performance of: isEmpty empty array vs length empty array vs custom isEmpty empty array vs isEmpty array of strings vs length array of strings vs custom isEmpty array of strings vs isEmpty array of objects vs length empty array of objects vs custom isEmpty array of objects vs isEmpty empty string vs length empty string vs custom isEmpty empty string vs isEmpty filled string vs length filled string vs custom isEmpty filled string

Created: 2 years ago by: Guest

Jump to the latest result

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js"></script>

Script Preparation code:

// empty array
window.foo1 = [];

// array of strings
window.foo2 = ['a', 'b', 'c', 'd', 'e'];

// array of objects
window.foo3 = [{ a: 1, b: 2, c: { a: 1, b: 2, c: { a: 1, b: 2 } } }, { a: 1, b: 2, c: { a: 1, b: 2, c: { a: 1, b: 2 } } }, { a: 1, b: 2, c: { a: 1, b: 2, c: { a: 1, b: 2 } } }];

// empty string
window.foo4 = '';

// filled string
window.foo5 = 'Comparing performance of: isEmpty empty strings vs length empty strings isEmpty filled string vs length filled string';

function isEmpty(value){
  return  value === undefined ||
          value === null ||
          (typeof value === "object" && Object.keys(value).length === 0) ||
          (typeof value === "string" && value.trim().length === 0)
}

Tests:

isEmpty empty array
_.isEmpty(window.foo1);
length empty array
window.foo1.length === 0;
custom isEmpty empty array
isEmpty(window.foo1);
isEmpty array of strings
_.isEmpty(window.foo2);
length array of strings
window.foo2.length === 0;
custom isEmpty array of strings
isEmpty(window.foo2);
isEmpty array of objects
_.isEmpty(window.foo3);
length empty array of objects
window.foo3.length === 0;
custom isEmpty array of objects
isEmpty(window.foo3);
isEmpty empty string
_.isEmpty(window.foo4);
length empty string
window.foo4.length === 0;
custom isEmpty empty string
isEmpty(window.foo4);
isEmpty filled string
_.isEmpty(window.foo5);
length filled string
window.foo5.length === 0;
custom isEmpty filled string
isEmpty(window.foo5);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
isEmpty empty array
length empty array
custom isEmpty empty array
isEmpty array of strings
length array of strings
custom isEmpty array of strings
isEmpty array of objects
length empty array of objects
custom isEmpty array of objects
isEmpty empty string
length empty string
custom isEmpty empty string
isEmpty filled string
length filled string
custom isEmpty filled string

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 3 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser/OS: Chrome 120 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
isEmpty empty array	6354874.0 Ops/sec
length empty array	14495110.0 Ops/sec
custom isEmpty empty array	4729560.0 Ops/sec
isEmpty array of strings	6369231.0 Ops/sec
length array of strings	14567480.0 Ops/sec
custom isEmpty array of strings	3882635.0 Ops/sec
isEmpty array of objects	5012964.0 Ops/sec
length empty array of objects	9877771.0 Ops/sec
custom isEmpty array of objects	2957263.0 Ops/sec
isEmpty empty string	6725451.0 Ops/sec
length empty string	10294570.0 Ops/sec
custom isEmpty empty string	5055660.0 Ops/sec
isEmpty filled string	6575069.0 Ops/sec
length filled string	12300210.0 Ops/sec
custom isEmpty filled string	4943220.0 Ops/sec

Compare lodash isEmpty and length comparison on arrays, stings and custom function isEmpty (version: 0)

Created: 2 years ago by: Guest

Jump to the latest result

isEmpty empty array

length empty array

custom isEmpty empty array

isEmpty array of strings

length array of strings

custom isEmpty array of strings

isEmpty array of objects

length empty array of objects

custom isEmpty array of objects

isEmpty empty string

length empty string

custom isEmpty empty string

isEmpty filled string

length filled string

custom isEmpty filled string

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A