why is my jquery selecting all text values - javascript

So I want to be able to fetch a number from a table cell and multiply it by an input on focusout, however the selector is grabbing all the table cells with the name front in the front. here is the code:
jquery
$(document).ready(function(){
$(".percent").focusout(function(){
var val2 = $(this).val();
if (val2==="") {
val2=0;
}
var crew2 = $(this).attr("name"),
front = $(".front, td[name='front"+crew2+"']").text();
console.log(crew2);
console.log(front);
});
});
html:
<tr>
<td class='front' name='frontI210'>$176.00</td>
<td><input type='text' class='percent' name='I210' style='' size='4' /></td>
<td>=</td>
<td class='total' id='I210'></td>
</tr>
<tr>
<td class='front' name='frontI250'>$225.00</td>
<td><input type='text' class='percent' name='I250' style='' size='4' /></td>
<td>=</td>
<td class='total' id='I250'></td>
</tr>
and console.log(front) is returning all the text of fronti210 and fronti250 as such:
$176.00$225.00
I want to only receive the information from the table cell that matches the input field name i just finished with, how do i do that?

$(".front, td[name='front"+crew2+"']") searchers for all elements with class front as well as all td elements with the name frontXXX. The comma is the multiple selector [docs].
Either only search for td elements with that name:
var front = $("td[name='front"+crew2+"']").text();
or use DOM traversal:
var front = $(this).closest('tr').children('.front').text();

$(".front, td[name='front"+crew2+"']").text();
//this___^ is the culprit.
The comma is basically saying I want all elements with the class front and all td elements with the specified name.
What you want is probably:
$("td[name='front"+crew2+"'].front").text();
Thought I haven't tested that, and the syntax may be off slightly.

Related

How to extract value from table with mixture of html elements

I have a table which contains a combination of plain text, input textboxes, selects, and spans. I need to iterate through the table row by row and pull out the value in each cell. Within my table all <tr> have a particular css class.
$(".gridBody").each(function(rowindex){
$(this).find("td").each(function(cellIndex){
var cell = $(this).first()
})
In my debugger I can see what kind of object is being returned by $(this).first() but I can't find out how to get into its attributes. I have tried using jqueries html parser to turn it back into a dom element, but instead of getting, for example, a textbox, I get something like [[html inputtextbox]]. Most of the methods that work on regular dom elements are not working for me.
If I use $(this)[0].innerText it returns the correct value when the contents of the cell are plain text, but not when they are a form of input or nested in a span element. What I would really like to be able to do is get a regular html dom element back that I can then check the type of with $.is() and then vary much logic from there.
How do I get the first child element in a table cell as an html dom element that I can manipulate with jquery like any other dom element?
var collected = $("#myTable td").find("input, textarea, span").map(function(){
return this.value || this.textContent;
}).get();
console.log( collected ); // an array holding values or text
http://jsbin.com/zewixe/2/edit?html,css,js,console,output
If you want only the immediate children than use the right > selector
(">input, >textarea, >span")
Heres how I would do it:
<table>
<tr>
<td>
<h1>Some stuff.</h1>
</td>
</tr>
<tr>
<td>
<input type="text" value="1"/>
</td>
<td>
<input type="text" value="2"/>
</td>
</tr>
<tr>
<td>
<input type="text" value="3"/>
</td>
</tr>
<tr>
<td>
<input type="text" value="4"/>
</td>
</tr>
</table>
$(function() {
function getFormData(selector){
'use strict';
var formTypes = {
text: 'text',
radio: 'radio',
select: 'select'
},
values = [];
$(selector).children().each(function(idx, childNode) {
if (childNode.getAttribute('type') && formTypes[childNode.getAttribute('type')]) values.push(childNode.value);
});
return values;
}
alert(
getFormData('table tr td.someClass')
);
})();
http://codepen.io/nicholasabrams/pen/RaKGjZ

How to get the <tr> of a clicked element in a table

I have a table with several <tr>s and each one has several <td>s. The content of these columns can be another html element (for example a textbox) or just text.
My question: how I can get the rest of the siblings of one clicked element inside this column? I mean, how I can know to which <tr> this element belongs, to <tr> #3 or <tr> #5?I don't have a index per <tr> to control
Example:
If I click the textbox of column #1 in row #5, I want that the content of column #2 in row #5 change. I don't know how to do it because my <tr> doesn't have an index.
Using jQuery, add this to the event handler. This will provide you with a collection of table cells:
var columns = $(this).closest('tr').children();
// .eq() is 0-based, so this would retrieve the fourth column
columns.eq(3);
You can find the index of a row using the index() function.
$('input').click(function(){
var index = $(this).parents('tr').index();
alert('you click an input on row #' + index);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table>
<tr>
<td><input type="text"></td>
<td></td>
</tr>
<tr>
<td><input type="text"></td>
<td></td>
</tr>
<tr>
<td><input type="text"></td>
<td></td>
</tr>
</table>
Use closest to get the parent TR element.
$('your_element').click(function(){
var tr = $(this).closest('tr');
var element1 = $(tr).find('element_to_find');
});
You can also use the :eq operator to find the td.
$('your_element').click(function() {
var tr = $(this).closest('tr');
var col3 = $("td:eq(2)", tr);
}

Get values of one column and pass it to another

I have a table and if I click a button i want to take the value from charge_outstanding_NUM and set charge_receipt_NUM to it. I need a reusable script because I will not know how many rows will get posted through.
<table>
<thead>
<tr>
<th>ID</th>
<th>Value</th>
<th>Outstanding</th>
<th>Reciept</th>
</tr>
</thead>
<tbody>
<tr>
<td>001</td>
<td>150.00</td>
<td id="charge_outstanding_1">150.00</td>
<td><input type="text" name="charge_receipt_1" id="charge_receipt_1" value=""></td>
</tr>
<tr>
<td>002</td>
<td>10.00</td>
<td id="charge_outstanding_2">10.00</td>
<td><input type="text" name="charge_receipt_2" id="charge_receipt_2" value=""></td>
</tr>
<tr>
<td>003</td>
<td>250.00</td>
<td id="charge_outstanding_3">250.00</td>
<td><input type="text" name="charge_receipt_3" id="charge_receipt_3" value=""></td>
</tr>
</tbody>
</table>
My jquery isn't working and I am not sure why. I click the button then loop through each col that starts with 'charge_outstanding_' then take the value and assign it to the closest input which is within the same row.
$('#pay_in_full').click(function(){
$("[id^=charge_outstanding_]").each(function(){
charge = $(this).val();
$(this).closest('input').val(charge);
});
});
working JSfiddle: http://jsfiddle.net/F5NvW/2/
Issue with your code: charge = $(this).val(); you are finding td which has no value, you need .html() for this
$(document).on("click", "#pay_in_full", function() {
$("[id^=charge_outstanding_]").each(function(){
var charge = $(this).html();
$(this).next().find('input').val(charge);
});
});
Suggestion: use class name with each <td> like this
Jsfiddle: http://jsfiddle.net/F5NvW/
Note: less error prone..
$(document).on("click", "#pay_in_full", function() {
$(".outstanding").each(function(){
var charge = $(this).html();
$(this).next().find('.paidAmount').val(charge);
});
});
.Closest will search for the ancestor elements, In your case the target input is the children of the next sibling of the selected element. So you have to use .find() or .children() to select that.
Try,
$('#pay_in_full').click(function(){
$("[id^='charge_outstanding_']").each(function(){
charge = parseInt($(this).text());
$(this).next().find('input').val(charge);
});
});
Additionally, You are selecting a td element, so you have to use .text() to get its text not .val()
DEMO

Select closest control element regardless of type (Input, Select etc.) for Validation

Let me explain:
I have a table form and some fields are required and I am trying to create custom validation.
example:
<table>
<tr>
<td class="required">Description</td>
<td>
<input id="input1" />
</td>
<td>Phone</td>
<td>
<input id="input2" />
</td>
</tr>
<tr>
<td class="required">Location</td>
<td>
<select id="select1"/>
</td>
<td>Email</td>
<td>
<input id="input3"/>
</td>
</tr>
</table>
What I wanna do is find all elements with class required
which is pretty easy using:
var requiredElements = document.querySelectorAll(".required");
And then I want to find their closest control element and check if it's value is empty. The problem is I don't know if it's gonna be input or select. I was thinking of using the .closest() function but it could lead to unwanted results if two different inputs are equally close to a required (like in the example above).
Any help would be much appreciated.
You can select a control regardless of type with jQuery by using any one of a number of selectors and combining it with one or more additional selectors.
In the code snippet you provide, the controls you want to select (input1 and select1) are child elements of a table cell element that is a sibling of the cell with the class "required", so we can build a selection thus:
$(".required + td").child
which breaks down as:
Find the elements with the "required" class applied to them.
This will give us the 2 table cells:
<td class="required">Description</td>
and
<td class="required">Location</td>
For each element returned by 1. use the "next adjacent" selector + with td to get the next table cell:
<td><input id="input1" /></td>
and
<td><select id="select1" /></td>
For each element returned by 2. get the child element:
<input id="input1" />
and
<select id="select1" />
There is also a jsFiddle to illustrate actions on the targets (change border to dark red).
Edit
This works because the layout in your snippet consistently places the elements you want to target in the same position relative to the element with your selection criteria. You must have some consistent way of finding elements that are not marked with a class/id otherwise you can't achieve your objective.
Although I like Raad's answer I'd like to post this answer to say what I did to solve my problem.
First of all I added a custom attribute labelFor to every label td with value equal to the id of it's corresponding input as follows:
<table>
<tr>
<td class="required" labelFor="input1">Description</td>
<td>
<input id="input1" />
</td>
<td labelFor="input2">Phone</td>
<td>
<input id="input2" />
</td>
</tr>
<tr>
<td class="required" labelFor="select1">Location</td>
<td>
<select id="select1"/>
</td>
<td labelFor="input3">Email</td>
<td>
<input id="input3"/>
</td>
</tr>
</table>
Then I used the following Validation function:
function validateForm () {
var self = this;
var validationPassed = true;
//First I will gather every .required element in an Array
var requiredTags = document.querySelectorAll(".required");
//Then I will loop through the array
for (var i = 0; i < requiredTags.length; i++) {
//Get value of attribute "labelFor" which would be the controlId that this label refers to
var controlId = $(requiredTags[i]).attr("labelFor");
//Then I use this to check if that control's value is empty.
if ($("#" + controlId).val() == ('' || null)) {
validationPassed = false;
}
}
if (!validationPassed) {
alert("Please fill all the required fields");
}
return validationPassed;
}
This way I check if all required fields are not empty and return true, or return false and an alert to warn user.
I find that the problem Raad described in his Edit is the main reason why this approach could be more useful. You don't have to worry if your input element is always in the same position relatively to your label td element.

JQuery add class with name of closest label

I have a table that needs some custom theming. It has a lot of text inputs and they all need custom widths. I figured it would be nice to simply add custom CSS classes based on the label name of each field. I am part of the way there but for some reason I am picking up all the label names for any given label in the table, not simply the closest one as I desire.
Here is my JQuery:
$('td.label-text', this).each(function() {
// add class with name of the label text
$('td.input-text').addClass($(this).text().replace(/[^a-z]/gi,'').toLowerCase() + ' ').closest("td.label-text");
});
Here is some sample HTML output:
<tr>
<td class="label-text">Rule Name*:</td>
<td class="input-text effectivedate rulename employeeid createrulefor ipaddress active searchby">
<input type="text" name="ruleName" value="">
</td>
</tr>
<tr>
<td class="label-text">Employee ID:</td>
<td class="input-text effectivedate rulename employeeid createrulefor ipaddress active searchby">
<input type="text" name="employeeId" value="" id="empnotext">
</td>
</tr>
As you can see all label names get added to every td .input-text class, not the nearest (closest) one. I am sure I am doing something wrong but not sure what.
I am also wondering if a class can be added based on the input name
You have to use this inside the loop. Currently, you're selecting all elements with selector td.input-text (at each iteration). Fiddle: http://jsfiddle.net/WCTyz/2/
$('td.input-text input', this).each(function() {
// add class with name of the label text
var $this = $(this);
var addclass = $this.parents("tr:first").children("td:first")
.text().replace(/[^a-z]/gi,'').toLowerCase();
$this.addclass(addClass);
});
Also, the addClass method automatically deals with separating spaces. You don't have to manually postfix your class name by a space.
Explanation of selector:
td.input-text input For each <td class="input-text"> ???? <input> ??? </td> :
Get class name:
.parents("tr:first") Select the current row
.children("td:first") Select the first cell
.text() Get the textual value

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