Linked Questions
16 questions linked to/from Using jQuery to compare two arrays of Javascript objects
0 votes
2 answers
2k views
jQuery check if form data are equal [duplicate]
Possible Duplicate: Using jQuery to compare two arrays I have to send the form data via ajax to server on say every 30 second. Now I want it to be checked at client end and ajax been hit only in case ...
1 vote
2 answers
310 views
javascript function for comparing arrays [duplicate]
Possible Duplicate: Using jQuery to compare two arrays I need a Javascript or jQuery function to determine if an array contains all the values of another array. The second array can have more ...
5157 votes
67 answers
3.1m views
What is the most efficient way to deep clone an object in JavaScript?
What is the most efficient way to clone a JavaScript object? I've seen obj = eval(uneval(o)); being used, but that's non-standard and only supported by Firefox. I've done things like obj = JSON.parse(...
70 votes
10 answers
265k views
How to Compare two Arrays are Equal using Javascript? [duplicate]
I want position of the array is to be also same and value also same. var array1 = [4,8,9,10]; var array2 = [4,8,9,10]; I tried like this var array3 = array1 === array2 // returns false
67 votes
11 answers
190k views
How to check whether multiple values exist within an Javascript array
So, I'm using Jquery and have two arrays both with multiple values and I want to check whether all the values in the first array exist in the second. For instance, example 1... Array A contains the ...
11 votes
7 answers
23k views
Is there a way to check if two arrays have the same elements?
Let say I have 2 arrays firstArray = [1, 2, 3, 4, 5]; secondArray = [5, 4, 3, 2, 1]; I want to know if they contain the same elements, while order is not important. I know I can write a function to ...
2 votes
6 answers
9k views
Removing duplicate strings using javascript
I have an array of 800 sentences. I want to remove all duplicates (sentences that have the same exact words, but in different order) from the array. So for example "this is a sentence" and "is this a ...
7 votes
4 answers
3k views
In Javascript, why is [1, 2] == [1, 2] or ({a : 1}) == ({a : 1}) false? [duplicate]
The following is done in Firebug: >>> [1, 2] == [1, 2] false >>> ({a : 1}) == ({a : 1}) false I thought Javscript has some rule that says, if an Object or Array has the same ...
2 votes
2 answers
3k views
inArray, indexOf in a 2-dimensional array
i have an 2-dimensional array. for example var bruecken = [[1,2],[3,4]]; now i am trying to test, if a subarray exists: console.log(jQuery.inArray([1,2], bruecken)); or console.log(bruecken.indexOf(...
0 votes
2 answers
3k views
Compare Two arrays for equality if they have nested objects in Jquery
I have two array with 5 objects each. Before I proceed, I want to check whether these two arrays are equal or not. I tried looking for the answers but unfortunately couldnt find anything for nested ...
0 votes
2 answers
506 views
how to check if elements are sorted
<div id='panelb'> <div class='item'>Ćao</div> <div class='item'>Bella</div> <div class='item'>Mare</div> </div> I sort the above divs using ...
0 votes
2 answers
432 views
jQuery need a simple way to compare arrays then display an alert for equal and other for false
Is there a simple way of comparing two arrays, then having an alert (or some other function later on) pop up if the arrays are equal, and one when it is not? Here is my array var answerKey = ["four",...
-1 votes
3 answers
166 views
How to find the match case using for loop in array
I have two arrays var arr1 = [ {'id':'1','name':'test1','value':'star','role':['monitor']}, {'id':'2','name':'test2','value':'player','role':['monitor','Supervisor']}, {'id':'3','name':'...
0 votes
2 answers
177 views
Comparing multiple objects in two arrays
I have two sets of objects that I am currently pushing to two different arrays and I'm trying to compare both sets of arrays for number of objects and that the value from the key value pairs are ...
1 vote
1 answer
141 views
Checking for duplicate nested arrays
I have an array that will be populated with information each time the user clicks a button. The information being pushed to this array is within an array itself. so something along the lines of this:...