在JavaScript的每个数组元素中添加索引

Question

I have an array like this

[2003, 5010, 4006, 5007, 2003, 5010]

I am using this instruction to extract specific column and it gives the above output

// profiles is a multidimensional array
var pofileIds   =   profiles.map((el) => el.TargetProfileId)

Now i want an output like this

[{ ids : 2003}, { ids : 5010 },{ ids : 4006 },{ ids : 5007 },{ ids : 2003 }]

Or this

ids=2003&ids=5010&ids=4006&ids=5007&ids=2003

I am working on existing project and can't change this. I need to call asp.net services to return me the desired data. The application is working on web and i am working to convert it to mobile but i am bound to use same services for mobile as web.

Answer 1

When i use (el) => ... I get an error. Try like this

var arr = [2003, 5010, 4006, 5007, 2003, 5010];

var profileIds = arr.map(function (elem) {
    return { "ID": elem };
});

Answer 2

Try:

profiles.map(el => ({ ids: el.TargetProfileId }))

From Understanding ECMAScript 6 arrow functions :

Because curly braces are used to denote the function's body, an arrow function that wants to return an object literal outside of a function body must wrap the literal in parentheses.

Answer 3

Thanks for the answers you gave and for you time. By the way i have found some simple solution for this which i am posting here.

Here is my array

[2003, 5010, 4006, 5007, 2003, 5010]

First i used this instruction from user jsonscript. But i had to modify it a little

var pofileIds   =   profiles.map((el) => { return { "ids": el.TargetProfileId }})

This produces this result

[Object {ids=2003}, Object {ids=5010}, Object {ids=4006}, Object {ids=5007}, Object {ids=2003}, Object {ids=5010}]

Then using jquery $.param

pofileIds   =   pofileIds.map((el) => $.param(el) )

Output

["ids=2003", "ids=5010", "ids=4006", "ids=5007", "ids=2003", "ids=5010"]

And finally javascript join

pofileIds   =   pofileIds.join("&")

Output

ids=2003&ids=5010&ids=4006&ids=5007&ids=2003&ids=5010

Hope it helps someone.

Answer 4

With pure JS should be very easy:

var myArray= [2003, 5010, 4006, 5007, 2003, 5010],
myObject,
myResponse = [];
for (var index in myArray)
{
    myObject = new Object();
    myObject.ids = myArray[index];
    myResponse.push(myObject);
}

//Output in the console for double check
console.log (myResponse);