How To Delete All Elements From Array
Feb 15, 2012I have an array in javascript which has n elements. The number n is not known. How to delete all the elements from the array?
View 1 RepliesI have an array in javascript which has n elements. The number n is not known. How to delete all the elements from the array?
View 1 RepliesThis is my code to add and delete dynamic rows and auto calculate the amount field by multiplying qty and rate.
[Code]...
I am trying to completely remove everything from a table. I want to delete all of the rows which I am able to do. But when I delete all of the rows and add rows in again there is whitespace at the top of the table and I can't figure out why it is there. Here is my code:
<html>
<head>
<style type="text/css">
td {
font-size: 200%;
}
</style>
[Code]....
When I have an array like this[code]...
How can I delete key1 from the test array if I don't know its position in the array?
I have an javascript array and i want to search for an element inside the array and then delete that value from the array . How can i do that? I can use splice to remove an element based on index but how can i search and find the index?
I used array.indexOf('str') but it worked only on firefox but not IE..
I want to enable the ability to always delete <li> elements when they're clicked. I can't add id's or onclick functions to each <li> because each one is made using document.createElement("li"); So my question is, how can I make a script that easily allows users to delete a <li> element just by clicking on it.
View 6 Replies View RelatedIs it possible to "properly" delete a single element from an array /object?This seems strange:
javascript Code:
Original
- javascript Code
alert(searchlist.length); // 4
[code]....
Do I have to overwrite the old object with a manually created new object?
What is the correct syntax for an nested array where each array element has 3 elements, a number and two text strings?
Code:
array = ['1, Old Man, Old Man','2 Black Sheep, Black Sheep',....]
should the text strings be in double quotes("")?
Code:
array = ['1, "Old Man", "Old Man"','2 "Black Sheep", "Black Sheep"',....]
This one is throwing me off! Either I am making a stupid mistake or I'm doing it totally wrong I have an array, and I am trying to select unique values from it and assign it to another array. Here is the code:
Code:
var flag;
for (i=0;i<=pdfs.length-1;i++)
{
flag = 1;
for (j=0;j<=pdfs2.length-1;j++)
[Code]...
The problem is that the if (pdfs2[j] == pdfs[i]) statement ends up never being true. There are URL's to pdf files in the array. On the other side, if there is a much easier way to select unique values from an array, please feel free to point it out.
I'd like to reorganize the third, fourth, fifth and sixth, as well as any
elements thereafter in an array in random order:
var a = new Array('first','second','third','fourth','fifth','s ixth','etc')
In other words, the first, second and third element should remain in
position 0, 1 and 2, while the fourth, fifth and sixth, etc. should appear
in random order.
jquery and a button delete, for remove rows of database.The problem is that I do not know how must input checkbox by clickable with click delete button sent to php code?my jquery code:
PHP Code:
$("#tableeven tr")
.mouseover(function()
[code]....
I try to make something where you add elements, and can delete elements later by calling a simple function. I simplyfied it right here: It works only to add the paragraphs, but the delete function doesn't work. Tried already to debug with an alert message after each rule... but the problem is with this rule I guess:
[Code]...
Is it possible to have one of nine elements of an array, each containing code that will fill in a square in a tic-tac-toe game, randomly chosen then the code executed?
View 3 Replies View RelatedI tried the following code based on a post I saw [URL[ somewhere else about summing all the elements of an array together. When I tried it though I couldn't seem to get it working. what I did wrong or tell me a different way to sum array elements together?
<script type="text/javascript">
Array.prototype.sum = function() {
for (var i = 0, L = this.length, sum = 0; i < L; sum += this[i++]);
return sum;
[Code]...
This is my code to add and delete dynamic rows and auto calculate the amount field by multiplying qty and rate.
<form name="staff_reg" action="<?php echo $_SERVER['PHP_SELF']."?".$_SERVER['QUERY_STRING']; ?>" method="post" enctype="multipart/form-data">
<table width="100%" border="0" cellspacing="0" cellpadding="2">
[code]...
I would like to know that how can I show the value of all the elements in array "amount" in total field?
how to do you add elements to an array? am looking at section dealing
with arrays in JS Bible, can't find how you add to an array.. in the
last few years I've been doing much more Java than JS, am used to Java,
where you can't add elements to an array, but use a Vector instead.. and
it's very easy to add to it (use add() method..) how to you add
elements to an array in JavaScript..
I looked up array obj, don't see method to add to array.
I do a search and get the following in xml:
<user>
<exec>
<entry>Value1</entry>
<entry>Value2</entry>
<entry>Value3</entry>
<entry>Value4</entry>
<exec/>
<user/>
How is the easiest way to find the number of entries in the array and
how can iterate over each value to test if the given value matches
another variable?
I have an array as such:
Code:
var Array = ("1|This Item","2|That Item","1|Here Again",'2|Once More");
I need to be able to count how many elements have the 1 and how many have the 2.I know that I can do the loop
Code:
for (var E in Array) {
(var a, var b) = E.split("|");
if (a == 1) {CtA++;} elsif (a==2) {CtB++;}
}
I am creating an array based on form elements. I then am trying to create an IF (and nested IF) statement to check if the fields are empty and then with the nested IF statement use certain fields to create mathematical functions.
So far I have this:
function QuantityMWh(form) {
var formchk = document.forms[0]
for (i = 0; i < formchk.elements.length; i++) {
if (formchk.elements[1].value == "" && formchk.elements[2].value == "") {
[Code]....
It's only checking the first field and not the second, and vice versa. i.e. if only one field has text then it passes.
I have this simple code to put elements into an array
[Code]....
I am trying to add the elements in an array together and display the result, I am using a user prompt to obtain the elements for the array, this works fine but when I come to add the elements together and display the result all I get is a row of the elements not their sum. The user inputs are all integers (the program adds the prices of items together so they are all numbers,amounts). If the user enters 10, 15,15,20 the result I get is 10151520 not 60.
View 8 Replies View Relatedhow can I get the number of elements in an array
Code JavaScript:
function get_active_link(myul, myclass, menuItems){
var menu_unidades_yolo = document.getElementById(myul);
[code]....
First of all I need to define an array of 3 elements. Each element is associated with a different first name. Then I shall realize a first function to add a name in the table. The function takes as parameter the table previously created and return it containing an additional element whose value is the name that the visitor wants to add. I must use the dialog box prompt so that the user can specify the name he wishes to add in the table.
I shall also perform a second function which will display the name that is included in the different array elements. This function will also take the table in parameters and proceed with setting the display name with a dialog box alert type that contains all of the name separated by ";".
[Code]....
I have a form that has an array of input values:
I do this so I can loop through the values in php... now...that's the easy part... the hard part comes to this:
Next to each of those boxes is a search button that allows the user to open up a popup window that they can search for an item, and select the item. Once they select the item it should populate that particular input box with the selected item. I can easily do this with a uniquely named input box, but can't seem to figure out how to do it with an array of input boxes...
I have a little problem (maybe I'm just to tired to get it -.-). I'm trying to access elements which are descendants of another element. I do it by using
containers = $('.likeReceiver .powermail_radio_inner'); When counting the elements with .length it says, there are three elements. So far everything is working.However, each time I try to access the elements all I get is a message which says "Undefined".
[Code]...
I have a fieldset with a bunch of input's inside.
I am wanting to put all of these elements inside the fieldset into an array.
Then once I have that array use a for loop to iterate through each of the elements values and display them with alert.
This is what I have tried, but am expecting to be a fair bit off the mark.
Code: