How can i concatenate using javascript?

Question

Here method is dynamic based on user input method value will be change

var method = 'GetActiveUserData';

How can i concatenate ? please help below expected output added

var result =  data["s:En"]["s:Body"][0].`${method}`Response[0].`${method}`Result[0]["a:datas"][0]["b:data"];

Expected output:

data["s:En"]["s:Body"][0].GetActiveUserDataResponse[0].GetActiveUserDataResult[0]["a:datas"][0]["b:data"];

Look into this question it may have your answer : Javascript dot operator inside strings — Hadi Pawar
– Hadi Pawar, Commented May 6, 2020 at 14:35

Jacob · Accepted Answer · 2020-05-06 14:47:23Z

3

Use [] on objects to access properties based on an expression:

var result = data
  ["s:En"]
  ["s:Body"][0]
  [`${method}Response`][0]
  [`${method}Result`][0]
  ["a:datas"][0]
  ["b:data"];

obj['blah'] is logically equivalent to obj.blah, so if method is GetActiveUserData, obj[`${method}Response`] is equivalent to obj.GetActiveUserDataResponse.

edited May 6, 2020 at 14:47

answered May 6, 2020 at 14:41

Jacob

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Comments

gie3d · Accepted Answer · 2020-05-06 14:46:48Z

0

Is this what you want?

Template string is available in most browser

var result =  `data["s:En"]["s:Body"][0].${method}Response[0].${method}Result[0]["a:datas"][0]["b:data"]`;

But if it doesn't work, you may try a simple string concatenate:

var result =  'data["s:En"]["s:Body"][0].' + method + 'Response[0].' + method + 'Result[0]["a:datas"][0]["b:data"]';

edited May 6, 2020 at 14:46

answered May 6, 2020 at 14:36

gie3d

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2 Comments

martin kumar Over a year ago

var rawAllocations = ata["s:En"]["s:Body"][0].${method}Response[0].${method}Result[0]["a:datas"][0]["b:data"]; ^ SyntaxError: Unexpected token {

gie3d Over a year ago

Template string should be available in most browser but if it doesn't work, you may use a simple javascript string concatenate. I'll update my answer

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