Index Of An Array Entry

Mar 24, 2006

I'm refering to an entry in an array by it's string key, as in
foo["bar"]. Is there a way to get the numeric index of that array
without iterating through the entire array?

What I need to do is find the "next" or "previous" entry in the array,
but the keys are strings, instead of numerical indeces.

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Return Index Of Array See If It Exists And What Index Number It Is At?

Jan 26, 2009

I have the below array called "results". When I loop through all document elements I would like to check "field_name" against the "results" array and see if it exists and what index number it is at??

// Split the comma delimited response into an array
results = result.split("~");
//Loop through array and populate fields[code].....

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Mar 2, 2009

I want to create an associative array dynamically pulling the index values from an array (propertyArray); Associative array is created inside create function and then returned. But after it is returned, I cant use index names to retrieve values. It returns undefined as below code shows.

Code JavaScript:

var propertyArray=["a","b","c"];
function create(){
var array=[];

[code]....

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Feb 27, 2009

I have a value, j[i] , which Ineed to do the following with:1) split with / to make an array2) Return the last valueFor example:Continent/country/State/City..and it would return "City", and with:Continent/country/State..it would return "State"Can anyone point me in the right direction?In Perl, I would just do:

my @tmp = split ///, $val;
my $last_val = $tmp[$#tmp];

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Oct 29, 2009

I created an array, whose entries looks like this:

[41, "The bird flew into it's cage"]
[33, "He drew fire from Joe"]
[33, "Roger asked her her name"]

[code]....

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Mar 9, 2010

How do I search through an array looking for an inputted entry? Ihave this so far. Also need it to display where the object was found.
var states = new Array();
var i;
i=0;

states[0] = "Alabama";
states[1] = "Alaska";
states[2] = "Arizona";
states[3] = "Arkansas";
states[4] = "California";
states[5] = "Colorado";
states[6] = "Connecticut";
states[7] = "Delaware";
states[8] = "Florida";
states[9] = "Georgia";
states[10] = "Hawaii";
states[11] = "Idaho";
states[12] = "Illinois";
states[13] = "Indiana";
states[14] = "Iowa";
states[15] = "Kansas";
states[16] = "Kentucky";
states[17] = "Louisiana";
states[18] = "Maine";
states[19] = "Maryland";
states[20] = "Massachusetts";
states[21] = "Michigan";
states[22] = "Minnesota";
states[23] = "Mississippi";
states[24] = "Missouri";
states[25] = "Montana";
states[26] = "Nebraska";
states[27] = "Nevada";
states[28] = "New Hampshire";
states[29] = "New Jersey";
states[30] = "New Mexico";
states[31] = "New York";
states[32] = "North Carolina";
states[33] = "North Dakota";
states[34] = "Ohio";
states[35] = "Oklahoma";
states[36] = "Oregon";
states[37] = "Pennsylvania";
states[38] = "Rhode Island";
states[39] = "South Carolina";
states[40] = "South Dakota";
states[41] = "Tennessee";
states[42] = "Texas";
states[43] = "Utah";
states[44] = "Vermont";
states[45] = "Virginia";
states[46] = "Washington";
states[47] = "West Virginia";
states[48] = "Wisconsin";
states[49] = "Wyoming";

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Aug 30, 2010

So, I am attempting to select a random entry from an array, and then make it so that particular entry will not be selected again until every entry has been selected. Basically, I don't want to see any of the same entries, until all of the entries in the array have been selected.

So if this were my array....

keywords =
[
"ppc",
"games",

[Code]....

since meta was selected a second time before everything had been selected once.

I would like to see something more like

meta, advertise, gaming,ppc, welcome, home, games, advertise, ppc, since this did not select any entry multiple times before every entry had been randomly selected.( the second loop started at the second "advertise" in case you didn't catch the differences.

But as you can see from the code that I have posted above, I do not know how to do this. I have seen examples where the entries that were randomly selected, were actually deleted from the array entirely but this is not what I want to do. I just want every entry to be selected once, and then for the process to be restarted.

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Mar 16, 2009

I am trying to accomplish a fairly basic task with javascript > my lack of Js knowledge has meant i have hit something of a roadblock.I need the a function to take an array from a form, remove the parsed variable from it and repost the form with the new array.This is what I have so far...

<script language="javascript">
function remove(SID) {
var speakers = document.form_name.elements["SID[]"];

[code]....

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Aug 1, 2005

I have a textbox on one of my forms that is used to accept a time from the
user. I need to write this value to a database to trigger an event later on.

What I'd like to know is...

Are there any functions in javascript that can convert different time
formats to a known format (24 hour clock)... 5pm -> 17:00 or 5:00 to 05:00,
etc. ???

Assuming that I get the input into a 24 hour format, how can I create a full
time/date variable with todays date and the users entered time?

Finally, if the entered time is earlier than the current time, how can I
create the above date/time combination using tomorrows date?

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Function Defining Index Of Array?

Mar 24, 2010

Code: function initArray() {
this.length = initArray.arguments.length;
for (var i = 0; i < this.length; i++) {[code].....

For the above piece of code, does the function 'function initArray()' just predefine the array that is written right after so that it's first array index starts at 1 instead of 0?

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Apr 8, 2009

I have an array in which each element is a long string of various values separated by a particular character.I want to be able to search the array using the first value of each element to get the index.I cannot see how to do this so I have started to create a function for this.I want to take the original array, split out the value into another array and search the new array.I can then use the index returned to retrieve the full string from the original array.However I am having a problem when trying to set the new array and I do not know enough JS to understand what is going wrong.Here is the code:

Code:
<script type="text/javascript">
var test= new array();[code].......

I am getting the correct result in "title".I have tried setting "test[0]=title;" with an if on the first pass and then using ".push" but to no good effect.if there is a better way to achieve my objective or is this a reasonable solution

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Sep 25, 2011

How do I use array.push to add an object with a custom index in an array?I have this script but it doesnt work. Chrome's Javascript console is not outputting errors

var tempList = new Array();
$('#add').click(function(){
var split = $('#itemid').val().split('_');[code].....

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Jan 18, 2011

I have a set of array indexed input fields i.e. field[0], field[1] etc.I have a change event handler associated to them using jquery:

PHP Code:
$("[id^=field]").change(function() {
// code here

[code]....

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arr [ obj [ i ] . property1 + "_" + obj [ i ] . property2 ] = arr [ i ] ;

so whats the index of the object where .property1 = x ?

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Aug 27, 2011

I have an array "arr" that is an array of objects. Each object has the same 7 properties.I want to find the index of the object with a property that matches a certain value x in the array arr. How can i accomplish this?The array has hash tables associated with it.arr [ obj [ i ] . property1 + "_" + obj [ i ] . property2 ] = arr [ i ] ;so whats the index of the object where .property1 = x ?

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Oct 20, 2011

I have a form with multiple input fields and I'm trying to identify the specific input field that is in focus so that I can display a relevant status bar message.

I have a message array with various entries in it and I'm calling a showStatus() function with an onfocus function from the form itself e.g.

The code in the input form =
<input type="text" name="first" size="31" maxlength="20" class="entry" onfocus="showStatus()"/>
The showStatus() function so far is =

[Code].....

I'd like to access the array variable of the item that is in focus not only for the message but also for an onblur function to validate input.

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Sep 1, 2010

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Jul 8, 2010

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The string is gotten from: <%=(Recordset2.Fields.Item("neworder").Value)%>.

And, have the following:

Is it possible to use the string variable to replace the index numbers so there will be a new position of the array?

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Sep 1, 2010

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PHP Code:

<?php
echo "<form name="region">";
for ($i=1;$i<=5;$i++){
echo '<input type="text" name="code[]"  onkeyDown="check(this)">

[code]....

I tried to use this code but it does not work

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Feb 18, 2010

I want to remove items in an array by passing index values. The index values may have 1 or more values. For example, i have the following array

Code:
var arr1=new Array("aa","bb","cc","dd","ee","ff");
var index = new Array();
index[] = 3;
index[] = 5

[Code]...

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Aug 24, 2010

I have a form element that looks like this:

<input type="text" onchange=doSomething(this)>

and a function:

function doSomething(theField){
}

I know that within the function I can access properties of the field (e.g. theField.name and theField.value). But how do I access theField's index number in the form's elements[] array -- from the "this" reference that was passed to the function? I.E. if this field is elements[3], how can I get at that 3?

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Jun 21, 2011

is it possible to access the index of the json data array in the current iteration and use it in a template?

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Jan 17, 2010

There is a missing part on my program, it is when you input less than or equal to 65 and greater than 100, a prompt will appear and say "Invalid Entry" and ask you to Input again an entry until you enter a valid entry. For example on Prelim Grade, I input 50, a prompt must appear to say "Invalid Entry" and ask me to input again another entry. Another is how will I terminate the program? When I input an invalid or a valid entry, it is continuing to ask me to input again an entry.Here is my code

Code:
<html>
<head>[code]......

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Jul 24, 2011

How to get the index number of getElementsByTagName("input") array on clicked field? i.e. when i clicked a field name "f03" of first record, i want to print(alert msg) the index value as 0, for second record 1 respectively.for that i want to write javascript for onclick event.

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Jan 18, 2011

I have two textbox columnsof equal length they are accessed in the following manner:

taborder 1
taborder 2 taborder 3 taborder 4 taborder 5 taborder 6 taborder 7 taborder 8

When I leave the first textbox (taborder 1), I need to check and see if the textbox contains avalue. If it does, then I need to check and see if the second textbox (taborder 2)contains a value. If it doesNOT, then I need to loadthe second textboxwith "100" and highlight (select) the text. I am adding a blur event to all the column one textboxes as they all contain"rawCount" in the id. Here is my blur event code:

$(document).ready(function(){
$('input[id*=rawCount]').bind('blur', function (event) {
// Code to go here
});
});

What I am trying to do isadd thecode tocheck and update thecolumn two textbox in the corresponding row (same index)to the blur event of the column one textboxes without having to loop the array each time to find the current textbox array position. Since it is adding the blur event, it has to be possible.

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