Merge The Two Arrays Into A Third Array
Mar 28, 2009
I've been given two arrays:
arr1 = [1,8,9,12]
arr2 = [2,3,10,11,13]
My task was to merge the two arrays into a third array. Done, no problem, merged then sorted a new array. I understand there is a way to merge the two without using "merge" then "sort" functions. My reference material doesn't go into it, and I can't find an example of how this would work. I think there would be a way to do it using a for loop and then "push", but I could be way off.
Can anyone tell me how they could see merging two without using the merge then sort? And what would be the advantage to doing it this alternate way as opposed to using merge? Is there a case where it would be preferable? I'm so new at this that I can't fathom doing anything other than merge.
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Jul 16, 2010
for example if I have two arrys
arr1[10,20,30]
arr2[40,50,60]
how to merge them to get arr1[10,20,30,40,50,60]
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Jul 4, 2011
I am trying to merge the values of 2 arrays.
array 1 = 1, 2, 3, 4, 5
array 2 = a, b, c, d, e
Resulting in:
array 3 = 1-a, 2-b, 3-c, 4-d, 5-e etc
both arrays that will be used originally will always of the same length. Both arrays will contain numbers
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Jul 21, 2011
is this correct
var mid = math.floor((0 + array.length)/2)
from here you could use array.slice to divide the array into two equal sized arrays?
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Mar 27, 2010
(the "code" below is pseudo code, just to get the idea across)
Here's what I currently have:
var bill = new array[20];
var sam = new array[20];
var nancy = new array[20];
var Oscar = new array[20];
I'm assigning objects to them (ie Oscar[5] = new objLabel() This seems like a kluge, however. Here's what I'd like (again, pseudo-code)
var Objects = {bill:null; sam:null; nancy:null; Oscar:null};
var theObject = new Array of Objects[20];
// yes: i know that's wrong... and that's the part I'm having trouble with
so that I can do something like:
[Code]....
Just seems to me that keeping a single array of multiple objects is likely to be less error-prone than multiple arrays of single objects... But I don't have the syntax right... or can it be done in JS? If it's doable, would someone be kind enough to show me how to declare and access that example?
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Nov 8, 2010
I was having some trouble with 2D arrays (or array of arrays). Essentially, the array has 100 rows, with two columns. The first column of every row holds a name, and the second holds a sales amount. With the use of a do while loop, the user can continuously add up to 100 names and sales amounts. After all the information the user wishes to add is stored into the 2D array I'm attempting to pass that very same 2D array as a parameter to a function called printRow as can be seen in the code below: Note: the function call and the actual function are found in two separate javascripts.
[Code]...
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Jan 8, 2011
I have a choice when creating a new API that I would like other peoples opinions on. Do I use a single Array or Multiple arrays such as: array[1][1] = "ID[56]NAME[Hello World]START[10]"; OR
ID[1][1] = 56;
Name[1][1] = "Hello World";
Start[1][1] = 20;
The API is used for animations so is very heavy work, but would using around 15 multidimensional arrays be too much and a single one be preferable???
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Apr 10, 2011
I'm have some javascript objects with arrays that should be transferred as php array.Its posted by ajax httpRequest.How can I return php array, from the javascript?
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Aug 3, 2009
I'm a JS beginner and I find looping through arrays with for/in is very easy. Yet I find lots of code examples where array length is used instead of for/in and I'm thinking to myself, why do it this (somewhat) hard(er) way?
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Mar 9, 2011
i have a form with arrays, I want to sum different arrays and display the total in a array field in the form itself.i have this code
<form>
do {
$x++;
[code]....
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Mar 18, 2009
need urgent help with javascript arrays. I need to store the checked value of the radiobutton into an array and then display the result from that array.I have created an empty array to store the input from the textbox of the form using the JS insert() function and then used show() function to display the result... but I am unable to display which option the user has selected from the radiobutton.if you look at it in the browser, and type in a name in the name textbox and click submit....it displays the result (which was stored in the inputarray) but the radiobutton doesnt work...gives.."undefined" and should give either Male or Female, depending on what the user selects.
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Jul 23, 2005
How do I "merge" the two functions below - checkFromDate() and
checkToDate() - so that I only have one function. I want to do the same
validation in both text fields, but only have one function that does all
the validation.
<html>
<head>
<script language="JavaScript">
function checkFromDate() {
var ToFrom = document.form.txtFromDate.value
// Do some other validation...
}
function checkToDate() {
var ToDate = document.form.txtToDate.value
// Do same validation as above...
}
</script>
</head>
<body>
Start Date : <input type="text" name="txtFromDate"
onBlur="checkFromDate()"> yyyy/mm/dd <br>
End Date : <input type="text" name="txtToDate" onBlur="checkToDate()">
yyyy/mm/dd
</body>
</html>
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Aug 23, 2001
I have an ezine with two different editions, a European and North American. I've decided to merge the two forms into one to simplify the sign-up procedure. However, I can't get the thing working
Here is the code for the two seperate forms, which was created automatically by the excellent Max-eMail. I've tried to merge them with a radio button like:
Code:
<input type=radio name="lists[15]" value="1LitNorthAmerica" CHECKED> North American Edition
<input type=radio name="lists[14]" value="1LitEurope">European Edition
but the values in [] are different for the countries, sex, etc. (For some reason the "[14]" and "[15]" stop the radio-button working - can't select between the two)
Could anybody be so kind as to help me merge the two forms together?
Here's the code (I haven't listed all the world's countries in the drop-down box to save space):
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Jan 15, 2010
Is it possible to merge several images into one image. Then get image that was combined into one and save it as if it were 1 image alone.
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Apr 5, 2010
I try to figure out how I can merge two onclick in one: The one is opening a "lightbox" div with a fullsize view. Now I would like to count this click with loading a site in an iframe. I am not that known in javascript, therefore my question: Is it possible?
This would load the iframe:
PHP Code:
onclick=parent.fullsize.location='[URL]';
This is the onclick statement in the lightbox.js:
PHP Code:
anchor.onclick=self._genOpener(num)}var body=d.getElementsByTagName("body")[0];
Separated the both onclick are not working. How I can put them together in one onclick? I tried this, but it is not working:
PHP Code:
anchor.onclick=self._genOpener(num)}var body=d.getElementsByTagName("body")[0] && parent.fullsize.location='[URL]';
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May 22, 2010
How to turn table A to table B? code...
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Sep 14, 2011
Currently I'm trying to do the following:
{
config : {
user : "name",
mod : true
}}
That is JSON nr 1, now I got the following
{
config : {
mod : false
}}
What I need as a result is:
{
config : {
user : "name",
mod : false
}}
If I do a $.extend(json1, json2) then I will lose my user name.
If I do a $.merge(json1, json2) I will keep my username, but my mod will not be overwritten.
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Jun 12, 2010
I have application A and application B deployed in two different app servers.B is launched in a new browser window when user clicks on a link in A .So application B starts as a popup.the problem I am facing is if I logout in B, automatically A also logouts and vice versa.this may be happening becasue of session merge, when new window is called there any way in java script or jquery to open a new browser window without passing the session information ?
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May 25, 2010
I'm trying to setup a mail merge using a gmail docs script from [url]. So far, it works pretty well, but I want to edit it to include the following:
1) The script should start with "Dear Noah" as opposed to "Dear Noah_Kaplan"
2) I want to add my canned response to the script so that it always appears at the bottom of the e-mail.
3) Lastly, I want the outgoing mail to be saved as individual drafts in my drafts folder in gmail before it's sent out. That way, I can decide if I want to add a sentence or two to personalize each individual email draft.
By the way, here's the script I want to edit:
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Oct 18, 2006
Given a drop down list such as:
Code:
<SELECT NAME=sections >
<OPTION>Merge</OPTION>
<OPTION>Nuke</OPTION>
<OPTION>Merge & Nuke</OPTION>
</SELECT>
If one selects Merge, then i want another form displayed with input fileds etc.
Can anyone show a script (i.e. javascript) that does just that or care for a example?
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Jul 23, 2005
I've noticed that IE apparently has a horrible implementation of the
array object, since traversing one with as few as 1000 items it tends
to pop up a dialog informing the user that the script is taking too
long. I tried splitting the array into a 10x100 two-dimensional array
as well as changing the array to a linked list, but neither improved
the code's efficiency sufficiently. Can anyone suggest methods for
optimizing array efficiency, or some other workaround for yet another
one of Bill Gates' blunders?
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Jul 23, 2005
I have a web document created by a script and instead of going back to
the db I choose to either create an array to iterate through or xml to
parse through.
So, my question is: What are the trade offs between using an array to
load data from or an xml structure?
My array would look like:
myarray = [[],[],[],[]]
My xml like:
<xml>
<data>
<a></a><b></b>
</data>
</xml>
I would use js to iterate or getElementByTagName to find data. I am thinking the page would load faster using xml, and then the user may not even use that functionality. In all cases I have to load the array to memory.
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May 23, 2007
I am with XHTML and CSS as much do I have to learn in JavaScript programming. I’m just beginning to understand and modify the DOM and I ran into something that I couldn’t find a solution for after some extensive search. I have this function:
if(document.getElementById && document.createElement) {
function addflags() {
var children = document.getElementById('pagelist').childNodes;
for(var i = 0; i < children.length; i++) {
children[0].className = 'bulgaria'
children[1].className = 'england'
children[2].className = 'italy'
children[3].className = 'sweden'
}
}
window.
}
The XHTML is an unordered list with 4 list items and sub lists in those list items (plus links in each li) and I want to add a country flag (set as background image in the CSS) to the direct children of the ul (the first level list items).
Now I discovered that Firefox is only reacting to odd array numbers, i.e. children[1], 3, 5, and 7 (the even numbers have "no properties") while IE is applying the classes correctly(?) as intended above (0,1,2,3).
At which point did I go wrong? Sorry if this is a real stupid question but I’m pretty new in this field and my researches didn’t bring any acceptable results.
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Oct 5, 2005
Is what I'm doing the right approach to creating an array of arrays? I have an external datafile with several employees' records. They are stored in an array with each element of the array being the complete employee record, ie: name, date of hire, etc., etc. These attributes are delimited by a :. I'm trying to separate these attributes while keeping the original array intact. That way I can access these attributes and validate whether or not an instance of the employee object will occur. There are too many records to create this from the start, so I'm trying to implement a for loop to do it for me. This is what I tried: datafile is the name of the original array of employees. emp is the array I'm trying to create .
for(var i=0;i<datafile.length;i++){
var emp = datafile[i].split(":");
//document.writeln(emp.length+"<br>");
/document.writeln(datafile[i]+"<br>");
}
//document.writeln(datafile[0]+"<br>");
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Jul 23, 2005
How do I set this to "disabled":
<select name="awards[]" multiple size="6">
<option value="1">Award 1</option>
<option value="2">Award 2</option>
<option value="3">Award 3</option>
<option value="4">Award 4</option>
</select>
I don't know how many options there will be as they are fed from a DB.
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Nov 23, 2005
Anybody got any suggestions about using two arrays. First i need to
ask the user their name and if their require a seat between 1and 5 or
between 6 and 10. I need to assign this information in two arrays.
Any suggestions. I have been working on this so far.
<script type="text/javascript">
var theArray = new Array(10);
//var sizeOfArray = parseInt(prompt("How many items will the array
have?", ""));
for(i=0; i<10; i++)
{
theArray[i] = prompt( "Please enter your name");
}
for(i=0; i<theArray.length; i++)
{
document.writeln( "theArray[" + i + " ] = " + theArray[i] + "<br />");
}
</script>
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