Benchmark: Move To First 2 - MeasureThat.net

Script Preparation code:

var wallets = [
  {
    currency: {
      id: "USD"
    }
  },
  {
    currency: {
      id: "IDR"
    }
  },
  {
    currency: {
      id: "SGD"
    }
  },
]

Tests:

Old Code
const moveCurrencyToFirst = (wallets, currencyId) => { const currencyIdx = wallets.findIndex( (wallet) => wallet.currency.id === currencyId ); const tempWallets = [...wallets]; if (currencyIdx !== -1) { const currWallet = wallets[currencyIdx]; tempWallets.splice(currencyIdx); tempWallets.unshift(currWallet); } return tempWallets; }; console.log(moveCurrencyToFirst(wallets, "SGD"))
New Code
const moveCurrencyToFirst = (wallets, currencyId) => { if(!wallets.length) return []; return wallets.reduce((result, wallet) => { if(wallet.currency.id === currencyId) { return [wallet, ...result] } return [...result, wallet] }, []) }; console.log(moveCurrencyToFirst(wallets, "SGD"))

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Old Code
New Code

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 15 days ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36

Browser/OS: Chrome 126 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
Old Code	287450.4 Ops/sec
New Code	282583.7 Ops/sec

Move To First 2 (version: 0)

Comparing performance of: Old Code vs New Code

Created: 15 days ago by: Guest

Jump to the latest result

Old Code

New Code

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A