How to update array value javascript

Question

I have an array of 3 objects of keyValue constructor in javacsript     function keyValue key  value       this Key   key      this Value   value          var array         array push new keyValue  a   1   new keyValue  b   2   new keyValue  c   3       I also have a function  Update  which takes keyValue object as parameter and updates the value of that object in the array     function Update keyValue  newKey  newValue            Now my question comes here  i got keyValue object here which i have to        update in the array i know 1 way to do this       var index   array indexOf keyValue       array index  Key   newKey      array index  Value   newValue         But I want a better way to do this if there is one

User · Answer

function Update key  value            for  var i   0  i  lt  array length  i              if  array i  Key    key                array i  Value   value               break

User · Answer

Why not use an object1   var dict      a   1   b   2   c   3      Then you can update it like so  dict a   23    or   dict  a     23    If you wan t to delete2 a particular key  it s as simple as   delete dict a    1 See Objects vs arrays in Javascript for key value pairs 2 See the delete operator

User · Answer

How about    function keyValue key  value       this Key   key      this Value   value     keyValue prototype updateTo   function newKey  newValue        this Key   newKey      this Value   newValue        array 1  updateTo  xxx    999

User · Answer

So I had a problem I needed solved  I had an array object with values  One of those values I needed to update if the value    X I needed X value to be updated to the Y value  Looking over examples here none of them worked for what I needed or wanted  I finally figured out a simple solution to the problem and was actually surprised it worked  Now normally I like to put the full code solution into these answers but due to its complexity I wont do that here  If anyone finds they cant make this solution work or need more code let me know and I will attempt to update this at some later date to help  For the most part if the array object has named values this solution should work               scope model ticketsArr forEach function  Ticket                    if  Ticket AppointmentType     CRASH TECH SUPPORT                         Ticket AppointmentType    360 SUPPORT                                      Full example below                                                           var Students               ID  1  FName   quot Ajay quot   LName   quot Test1 quot   Age  20              ID  2  FName   quot Jack quot   LName   quot Test2 quot   Age  21              ID  3  FName   quot John quot   LName   quot Test3 quot   age  22              ID  4  FName   quot Steve quot   LName   quot Test4 quot   Age  22              Students forEach function  Student            if  Student LName     Test1                 Student LName    Smith                    if  Student LName     Test2                 Student LName    Black                         Students forEach function  Student            document write Student FName    quot   quot    Student LName    quot  lt BR gt  quot

User · Answer

If you want to reassign an element in an array  you can do the following   var blah     Jan    Fed    Apr     console log blah    function reassign array  index  newValue        array index    newValue      return array     reassign blah   2    Mar

User · Answer

But i want to know a better way to do this  if there is one      Yes  since you seem to already have the original object  there s no reason to fetch it  again from the Array     function Update keyValue  newKey  newValue          keyValue Key   newKey      keyValue Value   newValue

[javascript] How to update array value javascript?

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