Describe MikeBuzzetti here. javascritp examples
${__javaScript(Math.floor(Math.random() * 200),temp)}
Get a random number between 0 and 200, store it in temp (return temp)
${__javaScript(rndStocks =Math.floor(Math.random()*('${numberStocks}'));$numberStocks='${numberStocks}' - rndStocks; ,numberOfSellStocks)}
Get a random number between 0 and jmeter varialbe numberStocks then subtract that number from numberStocks returns rndStocks in numberOfSellStocks