将数字值分配给字符串数组

Question

I am trying to find a way to make an array with strings have values such as [1, 2, 3, 4,...] and so on.I believe I saw a way to do it utilizing 'indexOf + 1' thanks for any help.

function sortGrades(lst){
var grades = ["VB", "V0", "V0+","V1", "V2", "V3", "V4", "V5", "V6", "V7", 
"V8",` "V9", "V10", "V11", "V12", "V13", "V14", "V15", "V16", "V17"];

 }

Answer 1

Perhaps something like this?

grades.map(function(v,i) { return i + 1; });
// Or cleaner but ES5:
grades.map((v,i) => i+1)

Even though I might have misunderstood your question.

Answer 2

You can simply using map :

 var grades = ["VB", "V0", "V0+","V1", "V2", "V3", "V4", "V5", "V6", "V7", "V8", "V9", "V10", "V11", "V12", "V13", "V14", "V15", "V16", "V17"]; var numericGrades = grades.map((grade, index) => index + 1); console.log(numericGrades);