Dynamically Add Variable Name Value Pairs to JSON Object

Question

I have a json object full of ips like  var ips        I then add ip objects to this object like so  ips ipID         I then need to add dynamic variable name value pairs to each ip so I am using code like this  var name  var value  var temp       tmp name    value   My question is  how can I add these name value pairs  tmp to my ipID objects so that my outcome turns out like  ipID     name   value  anotherName   anotherValue

User · Answer

You can achieve this using Lodash   assign function    x000D   x000D  var ipID       x000D    assign ipID    name    value      anotherName    anotherValue     x000D  console log ipID   x000D   lt script src  https   cdn jsdelivr net npm lodash 4 17 10 lodash min js  gt  lt  script gt  x000D   x000D   x000D

User · Answer

when using javascript objects  you can also just use  dot notation  to add an item   which JSLint prefers   var myArray     name    john       will initiate a key-value array with one item  name  and the value  john  myArray lastName    smith     will add a key named lastName with the value  smith    Object  name   john   lastName   smith     Here is a screenshot from testing in the Chrome console

User · Answer

if my understanding of your initial JSON is correct  either of these solutions might help you loop through all ip ids  amp  assign each one  a new object      initial JSON var ips    ipId1      ipId2           Solution1 Object keys ips  forEach function key      ips key     name   value   anotherName   another value            Solution 2 Object keys ips  forEach function key      Object assign ips key   name   value   anotherName   another value           To confirm   console log JSON stringify ips  null  2      The above statement spits        ipId1          name   value        anotherName   another value          ipId2          name   value        anotherName   another value

User · Answer

in Javascript       var myObject      name     john               name     john         myObject gender    male             name     john    gender   male

User · Answer

That s not JSON  It s just Javascript objects  and has nothing at all to do with JSON   You can use brackets to set the properties dynamically  Example   var obj       obj  name     value  obj  anotherName     anotherValue    This gives exactly the same as creating the object with an object literal like this   var obj     name   value  anotherName   anotherValue      If you have already added the object to the ips collection  you use one pair of brackets to access the object in the collection  and another pair to access the propery in the object   ips ipId        ips ipId   name     value  ips ipId   anotherName     anotherValue    Notice similarity with the code above  but that you are just using ips ipId  instead of obj   You can also get a reference to the object back from the collection  and use that to access the object while it remains in the collection   ips ipId        var obj   ips ipId   obj  name     value  obj  anotherName     anotherValue    You can use string variables to specify the names of the properties   var name    name   obj name    value  name    anotherName   obj name    anotherValue    It s value of the variable  the string  that identifies the property  so while you use obj name  for both properties in the code above  it s the string in the variable at the moment that you access it that determines what property will be accessed

User · Answer

With ECMAScript 6 there is a better way   You can use computed property names in object property definitions  for example   var name1    John    var value1    42    var name2    Sarah    var value2    35    var ipID                    name1    value1                 name2    value2                 This is equivalent to the following  where you have variables for the property names   var ipID                   John   42                 Sarah   35

User · Answer

From what the other answers have proposed  I believe this might help   var object   ips ipId   var name    Joe   var anothername    Fred   var value    Thingy   var anothervalue    Fingy   object name    value  object anothername    anothervalue    However  this is not tested  just an assumption based on the constant repetition of   object  string     value    object    string  value

User · Answer

I m assuming each entry in  ips  can have multiple name value pairs - so it s nested  You can achieve this data structure as such    var ips       function addIpId ipID  name  value        if   ips ipID   ip ipID            var entries   ip ipID          you could add a check to ensure the name-value par s not already defined here     var entries name    value

User · Answer

enter code here  Create Object from JSON String    x000D   x000D  var txt      cart    sType  1   produto     pType  1   pName   produto original    valor   10 00    pType  1   pName   produto selecionado    valor   11 00        var obj   JSON parse txt   obj cart produto 0   pName    nome alterado   obj cart produto obj cart produto length    pType  9   pName   produto adicionado    valor   19 00    console log obj    console log JSON stringify obj          compondo objeto JSON var txt      cart    sType  1   product     pType  1   pName   product genuine1    pValue   10 00    pType  1   pName   product genuine2    pValue   11 00           criando o objeto var obj   JSON parse txt    console log    log do objeto original    console log obj       alterando o valor de uma  key   no caso a pName do produto 0  obj cart product 0   pName    nome alterado       adicionando uma nova array obj cart product obj cart product length    pType  9   pName   produto adicionado    pValue   19 00    console log    log do objeto alterado    console log obj    console log    log do objeto alterado em txt    console log JSON stringify obj        no html document getElementById  print   innerText   JSON stringify obj   x000D   lt html gt   lt body gt    lt h2 gt Manipulando um objeto lt  h2 gt   lt p id  print  gt  lt  p gt   lt  body gt   lt  html gt  x000D   x000D   x000D

[javascript] Dynamically Add Variable Name Value Pairs to JSON Object

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