Run results for: if loop vs while + switch/case loop vs function + switch/case loop

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.80 Safari/537.36

Browser: Chrome 98

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
if loop	19639.0 Ops/sec
while + switch/case loop	16510.5 Ops/sec

Script Preparation code:

var IDLE = 0;
var CONSOLE_LOG = 1;
var CONSOLE_WARN = 2;
var CONSOLE_ERROR = 3;
var CONSOLE_INFO = 4;
var COMPLETE = 5;
var currentState = IDLE;
var string = 'Hello World!';

function functionSwitchLoop() {
    switch(currentState) {
      case IDLE:
        currentState = CONSOLE_LOG;
        return functionSwitchLoop();
      case CONSOLE_LOG:
        console.log(string);
        currentState = CONSOLE_WARN;
        return functionSwitchLoop();
      case CONSOLE_WARN:
        console.warn(string);
        currentState = CONSOLE_ERROR;
        return functionSwitchLoop();
      case CONSOLE_ERROR:
        console.error(string);
        currentState = CONSOLE_INFO;
        return functionSwitchLoop();
      case CONSOLE_INFO:
        console.info(string);
        return currentState = COMPLETE;
    };
};

Tests:

if loop
if(currentState === IDLE) { currentState = CONSOLE_LOG; }; if(currentState === CONSOLE_LOG) { console.log(string); currentState = CONSOLE_WARN; }; if(currentState === CONSOLE_WARN) { console.warn(string); currentState = CONSOLE_ERROR; }; if(currentState === CONSOLE_ERROR) { console.error(string); currentState = CONSOLE_INFO; }; if(currentState === CONSOLE_INFO) { console.info(string); currentState = COMPLETE; }; if(currentState === COMPLETE) currentState = IDLE;
while + switch/case loop
while(currentState != COMPLETE) { switch(currentState) { case IDLE: currentState = CONSOLE_LOG; break; case CONSOLE_LOG: console.log(string); currentState = CONSOLE_WARN; break; case CONSOLE_WARN: console.warn(string); currentState = CONSOLE_ERROR; break; case CONSOLE_ERROR: console.error(string); currentState = CONSOLE_INFO; break; default: console.info(string); currentState = COMPLETE; }; }; currentState = IDLE;
function + switch/case loop
functionSwitchLoop(); currentState = IDLE;