👨‍💻 v_is_empty_value

Simple checker for Empty/NotEmpty values. Checking Numbers, Null, NaN, Strings, Objects, Arrays...Will also detect instance of Date() object and return "not-empty" value for it.

General Information

It provides 4 functions to check if a value is empty or not. These are named as follows:

• isEmpty(v) : Checks if a value is empty. Returns true if the value is empty, else false.
• isNotEmpty(v) : Checks if a value is not empty. Returns true if the value is not empty, else false.
• isEmptyNested(v) : Checks if a nested value is empty.
  • It will check nested values in Objects and Arrays.
  • It will use recursion to check nested values.
  • Uses isEmpty(v) to check if a value is empty under the hood.
  • Returns true if the nested value is empty, else false.
• isNotEmptyNested(v) : Checks if a nested value is not empty. Returns true if the nested value is not empty, else false.

  NOTE: This basically does the opposite of isEmptyNested(v).

Base Example

// import { isEmpty, isNotEmpty, isEmptyNested, isNotEmptyNested } from 'v_is_empty_value'
const { isEmpty, isNotEmpty, isEmptyNested, isNotEmptyNested } = require('v_is_empty_value')

isEmpty(v) // Checks if a value is empty.

isNotEmpty(v) // Checks if a value is not empty.

isEmptyNested(v) // Checks if a nested value is empty.

isNotEmptyNested(v) // Checks if a nested value is not empty.

☑ Things it confirms Empty

• Undefined / Empty

console.log(isEmpty()) // prints "true"
console.log(isNotEmpty()) // prints "false"

• Empty String

console.log(isEmpty('')) // prints "true"
console.log(isNotEmpty('')) // prints "false"

• null

console.log(isEmpty(null)) // prints "true"
console.log(isNotEmpty(null)) // prints "false"

• Undefined

console.log(isEmpty(undefined)) // prints "true"
console.log(isNotEmpty(undefined)) // prints "false"

• Empty Object

console.log(isEmpty({})) // prints "true"
console.log(isNotEmpty({})) // prints "false"

• Empty Array

console.log(isEmpty([])) // prints "true"
console.log(isNotEmpty([])) // prints "false"

☑ Few things it confirms NOT Empty

• String with some length/value.

isEmpty('demo_password_123456') // prints "false"
isNotEmpty('demo_password_123456') // prints "true"

• NaN

console.log(isEmpty(NaN)) // prints "false"
console.log(isNotEmpty(NaN)) // prints "true"

• Date instance.

isEmpty(new Date()) // prints "false"
isNotEmpty(new Date()) // prints "true"

• Error instance.

isEmpty(new Error()) // prints "false"
isNotEmpty(new Error()) // prints "true"

• Promise instance.

isEmpty(new Promise((resolve, reject) => resolve(true))) // prints "false"
isNotEmpty(new Promise((resolve, reject) => resolve(true))) // prints "true"

• Number instance.

console.log(Number()) // prints "0"
console.log(isEmpty(Number())) // prints "false"
console.log(isNotEmpty(Number())) // prints "true"

Note: It will return false for 0 and -0 as well.

• Nested Object : confirms not empty even though it has empty values.

const nestedEmptyObject = {
  demo: null,
  yea: undefined,
  iKnowMan: {
    wtf: null,
    moreNull: null
  }
}

// NOTE: Returns "false" just because "iKnowMan" is an object.
console.log(isEmpty(nestedEmptyObject)) // prints "false"
console.log(isNotEmpty(nestedEmptyObject)) // prints "true"

// NOTE: Better use "isEmptyNested(v)" to check nested values.
console.log(isEmptyNested(nestedEmptyObject)) // prints "true"
console.log(isNotEmptyNested(nestedEmptyObject)) // prints "false"

📜 More Info:
Check the test cases for more examples.

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🚀 Performance Benchmark

This will basically run the functions mentioned for 25mil. times and will print the time taken for each function to complete.

📋 Test setup:

• AMD Ryzen 7 2700X Eight-Core Processor 3.70 GHz
• 16 GB 3000 MHz DDR4
• Patriot P300 256GB M.2 NVMe
• Windows 10 Pro 64-bit
• Node.js v20.10.0

📊 Current performance:

• isEmpty(v) : ~ 40,000 ops/ms [ 40 mil. ops/sec ]
• isNotEmpty(v) : ~ 32,000 ops/ms [ 32 mil. ops/sec ]
• isEmptyNested(v) : ~ 30,000 ops/ms [ 30 mil. ops/sec ]
• isNotEmptyNested(v) : ~ 31,000 ops/ms [ 31 mil. ops/sec ]

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