Run results for: JSON stringification versus simple map

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/147.0.0.0 Safari/537.36

Browser: Chrome 147

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 3 months ago

JSON.stringify

1.8M/s

map.map

1.2M/s

View exact numbers

Test name	Executions per second
✓ JSON.stringify	1,777,706 Ops/sec
map.map	1,182,336 Ops/sec

Script Preparation code:

var xs = [ 
  [' ','0','1','2','3','4','5','6','7','8','9'],
  ['A','a','B','b','C','c','D','d','E','e',';'],
  ['Â','â','F','f','G','g','H','h','Ê','ê',':'],
  ['À','à','I','i','J','j','K','k','È','è','.'],
  ['L','l','Î','î','M','m','N','n','É','é','?'],
  ['O','o','Ï','ï','P','p','Q','q','R','r','!'],
  ['Ô','ô','S','s','T','t','U','u','V','v','“'],
  ['W','w','X','x','Y','y','Ù','ù','Z','z','”'],
  ['@','&','#','[','(','/',')',']','+','=','-'],
];

Tests:

map.map
xs.map(a => a.join('')).join('')
JSON.stringify
JSON.stringify(xs)

Run results for: JSON stringification versus simple map

https://stackoverflow.com/a/55147377/1243641

map.map

JSON.stringify