javascript:为数组中的每个字符串创建自动子字符串

Question

是否可以在 javascript 中为数组中的每个字符串创建自动子字符串？ 例如:

var test = 
[
 "banana",
 "apple",
 "pear",
 "cologne"
];

var conclusion = prompt("choose one")

// something that would get the following result:

if( conclusion === banana)

{

print("b");

print("ba");

print ("ban");

// ...

print("banana");

// and the same for the rest of the strings in the Array.

Answer 1

这是一个简短的解决方案，我让你自己理解作为作业:

var test ="banana";
test.split("").forEach((x,i,arr) => console.log(arr.slice(0,i+1).join("")));