javascript - edit array elements and capitalize the letters -

i have array

var myarr = [ "color - black", "color - blue", "color - red" ] 

i want replace " - " ":" , capitalize first letter

var myarr = [ "color: black", "color: blue", "color: red" ] 

i try don't know how capitalize first letter

for(var i=0; < myarr.length; i++) {             myarr[i] = myarr[i].replace(/ - /g, ":");         } 

try this:

var myarr = [ "color - black", "color - blue", "color - red" ]    for(var i=0; < myarr.length; i++) {    myarr[i] = myarr[i][0].touppercase() + myarr[i].replace(/ -/g, ":").substring(1);  }    console.log(myarr);