Run results for: pick by substring key and concatenate

Test name	Executions per second
✓ substring & string result	4,394,866 Ops/sec
substring & string result using concatenate	4,244,565 Ops/sec
substring & array result	3,784,534 Ops/sec
string builder & string result	2,090,240 Ops/sec
string builder & array result	2,045,732 Ops/sec

substring & array result

const object = {'key1': 'value1', 'key2': 'value2', 'key1 variant': 'value1 variant'}
const result = []
const key='key1 variant'
    for (let i = 0; i <= key?.length; i++) {
      if (key[i] === ' ' || i === key.length) {
        const current = key.substring(0, i)
        if (object[current]) {
          result.push(object[current])
        }
      }
    }
 const final = result.join(' ')

string builder & array result

const object = {'key1': 'value1', 'key2': 'value2', 'key1 variant': 'value1 variant'}
const result = []
const key='key1 variant'
let current = ''
    for (let i = 0; i <= key?.length; i++) {
      current += key[i]
      if (key[i] === ' ' || i === key.length) {
        if (object[current]) {
          result.push(object[current])
        }
      }
    }
 const final = result.join(' ')

substring & string result

const object = {'key1': 'value1', 'key2': 'value2', 'key1 variant': 'value1 variant'}
let result = ''
const key='key1 variant'
    for (let i = 0; i <= key?.length; i++) {
      if (key[i] === ' ' || i === key.length) {
        const current = key.substring(0, i)
        if (object[current]) {
          result += ' ' + object[current]
        }
      }
    }

string builder & string result

const object = {'key1': 'value1', 'key2': 'value2', 'key1 variant': 'value1 variant'}
let result = ''
const key='key1 variant'
let current = ''
    for (let i = 0; i <= key?.length; i++) {
      current += key[i]
      if (key[i] === ' ' || i === key.length) {
        if (object[current]) {
          result += ' ' + object[current]
        }
      }
    }

substring & string result using concatenate

const object = {'key1': 'value1', 'key2': 'value2', 'key1 variant': 'value1 variant'}
let result = ''
const key='key1 variant'
    for (let i = 0; i <= key?.length; i++) {
      if (key[i] === ' ' || i === key.length) {
        const current = key.substring(0, i)
        if (object[current]) {
          result = result.concat(' ', object[current])
        }
      }
    }