How to iterate object in JavaScript

Question

I have this object  I want to iterate this object in JavaScript  How is this possible   var dictionary          data               id   0   name   ABC              id   1   name   DEF               images               id   0   name   PQR              id   1   name   xyz

User · Accepted Answer

You can do it with the below code  You first get the data array using dictionary data and assign it to the data variable  After that you can iterate it using a normal for loop  Each row will be a row object in the array   var data   dictionary data   for  var i in data         var id   data i  id       var name   data i  name      You can follow similar approach to iterate the image array

User · Answer

Using for and foreach loop    var dictionary          data     id   0   name   ABC       id   1   name   DEF           images     id   0   name   PQR       id   1   name   xyz        dictionary data forEach item   gt         console log item id         item name        for  var i   0  i  lt  dictionary data length  i           console log dictionary data i  id         dictionary data i  name

User · Answer

for index in dictionary     for var index in dictionary            do something

User · Answer

var dictionary              data     id   0   name   ABC      id   1   name   DEF              images       id   0   name   PQR    id   1   name   xyz         for  var key in dictionary        var getKey   dictionary key       getKey forEach function item            console log item name         item id

User · Answer

There s this way too  new to EcmaScript5    dictionary data forEach function item       console log item name         item id         Same approach for images

User · Answer

Use dot notation and or bracket notation to access object properties and for loops to iterate arrays   var d  i   for  i   0  i  lt  dictionary data length  i        d   dictionary data i     alert d id         d name       You can also iterate arrays using for  in loops  however  properties added to Array prototype may show through  and you may not necessarily get array elements in their correct order  or even in any consistent order

User · Answer

Something like that   var dictionary     data     id   0   name   ABC     id   1    name   DEF      images      id   0   name   PQR     id   1   name   xyz       for  item in dictionary      for  subItem in dictionary item          console log dictionary item  subItem  id        console log dictionary item  subItem  name

User · Answer

Using a generator function you could iterate over deep key-values     x000D   x000D  function   deepEntries obj     x000D      for let  key  value  of Object entries obj     x000D          if  typeof value      object    x000D              yield  key  value  x000D          else  x000D              for let entries of deepEntries value   x000D                  yield  key     entries  x000D        x000D    x000D   x000D  const dictionary     x000D       data     x000D            id   0   name   ABC    x000D            id   1   name   DEF   x000D         x000D       images     x000D            id   0   name   PQR    x000D            id   1   name   xyz   x000D        x000D    x000D   x000D  for let entries of deepEntries dictionary     x000D      const key   entries slice 0  -1  join      x000D      const value   entries entries length-1  x000D      console log key  value  x000D    x000D   x000D   x000D

User · Answer

Here s all the options you have   1  for   of  ES2015    x000D   x000D  var dictionary     x000D       data     x000D            id   0   name   ABC    x000D            id   1   name   DEF   x000D         x000D       images     x000D            id   0   name   PQR    x000D            id   1   name   xyz   x000D        x000D     x000D   x000D  for  const entry of dictionary data    x000D    console log JSON stringify entry   x000D    x000D   x000D   x000D    2  Array prototype forEach  ES5    x000D   x000D  var dictionary     x000D       data     x000D            id   0   name   ABC    x000D            id   1   name   DEF   x000D         x000D       images     x000D            id   0   name   PQR    x000D            id   1   name   xyz   x000D        x000D     x000D   x000D  dictionary data forEach function entry    x000D    console log JSON stringify entry   x000D     x000D   x000D   x000D    3  for    ES1    x000D   x000D  var dictionary     x000D       data     x000D            id   0   name   ABC    x000D            id   1   name   DEF   x000D         x000D       images     x000D            id   0   name   PQR    x000D            id   1   name   xyz   x000D        x000D     x000D   x000D  for  let i   0  i  lt  dictionary data length  i      x000D    console log JSON stringify dictionary data i    x000D    x000D   x000D   x000D

[javascript] How to iterate object in JavaScript?

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