如何将数组转换为对象数组

Question

I am working with an array of words for example:

const words = ["hello", "world", "how", "are", "you"]

How can I transform this into an array of objects:

const words1 = [ {0: "hello"}, {1: "world"},; {2: "how"}, {3: "are"}, {4: "you"} ]

Answer 1

You can use map

 const words = ["hello", "world", "how", "are", "you"] let op = words.map((value,key) => ({[key]: value})) console.log(op)

Answer 2

Use map & return an object where key is the index and its value will be each item from the original array

 const words = ["hello", "world", "how", "are", "you"]; let result = words.map(function(item, index) { return { [index]: item } }); console.log(result)

If you are trying with normal for loop then create an empty array and push object to it. Note the way i is placed inside []

 const words = ["hello", "world", "how", "are", "you"]; let newArray = []; for (let i = 0; i < words.length; i++) { newArray.push({ [i]: words[i] }) } console.log(newArray)

Answer 3

Here you go. Run the code and you'll see the result you're looking for printed out.

NOTE: This will work in older browsers and versions of JS. Solutions with { [index] : ... } will not.

 const words = ["hello", "world", "how", "are", "you"]; var obj; for( let i=0; i < words.length; i++ ) { obj = {}; obj[i] = words[i] words[i] = obj; } document.write( JSON.stringify( words ) );