const color=['black',"brown","red","orange","yellow","green","blue","violet","grey","white"]
const colorMap={'black':0,"brown":1,"red":2,"orange":3,"yellow":4,"green":5,"blue":6,"violet":7,"grey":8,"white":9}

const decodedValue1 = (code1) => Number(String(color.indexOf(code1[0]))+String(color.indexOf(code1[1])))
const decodedValue2 = (code1) => color.indexOf(code1[0])*10 +color.indexOf(code1[1])
const decodedValue3 = (code1) => color[code1[0]]*10 +color[code1[1]]

Teardown JS

Test cases

Test #1

Title *

Async

Code *decodedValue1(['white', 'green'])

Test #2

Title *

Async

Code *decodedValue2(['white', 'green'])

Test #3

Title *

Async

Code *decodedValue3(['white', 'green'])

Test case details

Preparation Code

Test cases

Test #1

Test #2

Test #3