How To Set A JS object property name from a variable

Question

I am in need to set a JS object property name dynamically   for i 1  i lt 3  i          var key    i  name        data             key    name1             Result should be   data         1name   name1      2name   name1

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It does not matter where the variable comes from  Main thing we have one     Set the variable name between square brackets            var optionName    nameA   var JsonVar      optionName     some value

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You ll have to use    notation to set keys dynamically   var jsonVariable       for i 1  i lt 3  i               var jsonKey    i  name    jsonVariable jsonKey     name1        Now in ES6 you can use object literal syntax to create object keys dynamically  just wrap the variable in     var key    i    name   data          key     name1

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var jsonVariable       for var i 1  i  lt  3  i        jsonVariable i    name      name    i

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With ECMAScript 6  you can use variable property names with the object literal syntax  like this   var keyName    myKey   var obj                    keyName   1              obj myKey   1   This syntax is available in the following newer browsers      Edge 12   No IE support   FF34   Chrome 44   Opera 31   Safari 7 1     https   kangax github io compat-table es6    You can add support to older browsers by using a transpiler such as babel  It is easy to transpile an entire project if you are using a module bundler such as rollup or webpack

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Along the lines of Sainath S R s comment above  I was able to set a js object property name from a variable in Google Apps Script  which does not support ES6 yet  by defining the object then defining another key value outside of the object   var salesperson        var mailchimpInterests               aGroupId   true          mailchimpInterests salesperson    true

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Use a variable as an object key  let key    myKey    let data     key     name1       See How to iterete on your object here

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jsonVariable      for i 1  i lt 3  i                 var jsonKey    i  name      jsonVariable jsonKey     name1      this will be similar to       jsonVariable         1name    name1      2name    name1

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This is the way to dynamically set the value  var jsonVariable       for  var i   1  i  lt  3  i          var jsonKey   i    name       jsonVariable jsonKey     name    i

[javascript] How To Set A JS object property name from a variable

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