how to check if the text exists in text box jquery
I need to check if the text exists in the input box,if checking text is not exist thend append new data
I have tried with below code
$(document).ready(function(){
$("#item_inv_desc").change(function(){
var item_inv_desc = $('select[name=item_inv_desc]').val();
if (item_inv_desc == 7)
{
var invoice_number = "123456789";
//I need check if text "CRN" exists in text box
var data=$('#invoice_number:contains("CRN")')
if(data)
{
//if text "CRN" exist no need to append data
}
else
{
//if not exist
$("#invoice_number").val(invoice_number+"CRN");
}
}
});
})
//Html
<input type="text" id="invoice_number" value="">
I am having problem when try to insert append value it adds extra CRN number to invoice number,I need to avoid duplicating,
Try includes() with the val() of the text box:
var data = $('#invoice_number').val().includes("CRN")
or, for older browsers, use indexOf():
var data = $('#invoice_number').val().indexOf("CRN") !== -1
Working Demo:
$(document).ready(function() {
$("#invoice_number").change(function() {
var invoice_number = "123456789";
var data = $('#invoice_number').val().includes("CRN");
if (data) {
} else {
$("#invoice_number").val(invoice_number + "CRN");
}
});
})
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type="text" id="invoice_number" value="">
You can use regex to remove all the digits and get the text only from the value of the input text. If you want that on button click then add that block of code inside the click function:
var data = $('#invoice_number').val();
var res = data.replace(/[0-9]/g, '');
console.log(res);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type="text" id="invoice_number" value="123456789CRN">
#Manjunath
var data=$('#invoice_numbe:contains("CRN")')
"r" is missing when you are checking below
var data=$('#invoice_numbe:contains("CRN")')
and use
var data=$('#invoice_number').val().indexOf("CRN");
if(data>-1){
// donot add CRN
}
Related
Using jquery to get the value of a textbox.
BUT
i need to enter the id of the textbox, then use that value to get the value of the textbox using jquery.
var tt = $("#fieldname").val()
that works
now how do i enter the fieldname at runtime, and get jquery to execute the val command as if it was hard coded?
There are a few ways that you could do this. One way is to listen to one of the keyboard or change events on the textbox you enter the id into, to help determine when the input has changed. So for example
$("#inputText").on("keyup", function(keyupEvent){
var textboxId = $("#inputText").val();
var textboxIdValue = $("#" + textboxId).val();
});
Or another way could be to use a click event with similar kind of logic, so for example
$("#clickMe").on("click", function(){
var textboxId = $("#inputText").val();
var textboxIdValue = $("#" + textboxId).val();
})
An example for the use case of both can be seen here https://fiddle.jshell.net/xpvt214o/114584/
Here is an example for you to get started with:
<body>
<p>Type "one" or "two" below</p>
<input id="search" />
<input id="one" value="This input is #one" />
<input id="two" value="And this is #two" />
<p id="result">No input specified</p>
</body>
And the corresponding jQuery code:
// Cache jQuery elements for performance and readability
var $search = $("#search");
var $result = $("#result");
$search.on("change", function() {
var search_value = $search.val();
if (search_value.length) {
search_value = "#" + search_value.toLowerCase().trim(); // Sanitise user input
if ($(search_value).length) {
$result.text($(search_value).val());
} else {
$result.text("Input not found");
}
} else {
$result.text("No input specified");
}
});
This will show the value of the specified input, if it exists.
You can see it in action here: https://jsfiddle.net/jeevantakhar/xpvt214o/114558/
I have two inputs which I want to have the same input values when one is typed in. It kind of works but not all the time.
I will leave the code here:
$('#google-querynav').keypress(function() {
var text = $(this).val();
$('#google-querystat').attr('value', text);
})
$('#google-querystat').keypress(function() {
var text = $(this).val();
$('#google-querynav').attr('value', text);
})
Thanks for the help
You need to use change and keyup event to do this work. Also you can use val() method to change value of input instead of attr("value").
$('#google-querynav').on("change keyup", function() {
var text = $(this).val();
$('#google-querystat').val(text);
})
$('#google-querystat').on("change keyup",function() {
var text = $(this).val();
$('#google-querynav').val(text);
})
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type="text" id="google-querynav"/>
<input type="text" id="google-querystat"/>
You can use shorter code to do this
$('#google-querynav, #google-querystat').on("keyup change", function() {
var text = $(this).val();
$('#google-querynav, #google-querystat').val(text);
})
Test it in jsfiddle
Use keyup instead of keypress. And use val instead of attr
$('#google-querynav').on('keyup change', function() {
var text = $(this).val();
$('#google-querystat').val(text);
})
$('#google-querystat').on('keyup change', function() {
var text = $(this).val();
$('#google-querynav').val(text);
})
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input id="google-querynav">
<input id="google-querystat">
I want that the user can see the value of a variable by writing it's name in a textarea, simpliefied:
var money = "300$";
var input = "money"; //user wants to see money variable
alert(input); //This would alert "money"
Is it even possible to output (in this example) "300$"?
Thanks for help!
Instead of seprate variables, use an object as an associative array.
var variables = {
'money': '300$'
}
var input = 'money';
alert(variables[input]);
You can use an object and then define a variable on the go as properties on that object:
var obj = {}, input;
obj.money = "300$";
input = "money";
alert(obj[input]);
obj.anotherMoney = "400$";
input = "anotherMoney";
alert(obj[input]);
A simple way,you can still try this one :
var money = "300$";
var input = "money"; //user wants to see money variable
alert(eval(input)); //This would alert "money"
Here is an answer who use the textarea as asked.
JSFiddle http://jsfiddle.net/7ZHcL/
HTML
<form action="demo.html" id="myForm">
<p>
<label>Variable name:</label>
<textarea id="varWanted" name="varWanted" cols="30" rows="1"></textarea>
</p>
<input type="submit" value="Submit" />
</form>
<div id="result"></div>
JQuery
$(function () {
// Handler for .ready() called.
var variables = {
'money': '300$',
'date_now': new Date()
}
//Detect all textarea's text variation
$("#varWanted").on("propertychange keyup input paste", function () {
//If the text is also a key in 'variables', then it display the value
if ($(this).val() in variables) {
$("#result").html('"' + $(this).val() + '" = ' + variables[$(this).val()]);
} else {
//Otherwise, display a message to inform that the input is not a key
$("#result").html('"' + $(this).val() + '" is not in the "variables" object');
}
})
});
I have four input boxes. If the user fills the first box and clicks a button then it should autofill the remaining input boxes with the value user input in the first box. Can it be done using javascript? Or I should say prefill the textboxes with the last data entered by the user?
On button click, call this function
function fillValuesInTextBoxes()
{
var text = document.getElementById("firsttextbox").value;
document.getElementById("secondtextbox").value = text;
document.getElementById("thirdtextbox").value = text;
document.getElementById("fourthtextbox").value = text;
}
Yes, it's possible. For example:
<form id="sampleForm">
<input type="text" id="fromInput" />
<input type="text" class="autofiller"/>
<input type="text" class="autofiller"/>
<input type="text" class="autofiller"/>
<input type="button"value="Fill" id="filler" >
<input type="button"value="Fill without jQuery" id="filler2" onClick="fillValuesNoJQuery()">
</form>
with the javascript
function fillValues() {
var value = $("#fromInput").val();
var fields= $(".autofiller");
fields.each(function (i) {
$(this).val(value);
});
}
$("#filler").click(fillValues);
assuming you have jQuery aviable.
You can see it working here: http://jsfiddle.net/ramsesoriginal/yYRkM/
Although I would like to note that you shouldn't include jQuery just for this functionality... if you already have it, it's great, but else just go with a:
fillValuesNoJQuery = function () {
var value = document.getElementById("fromInput").value;
var oForm = document.getElementById("sampleForm");
var i = 0;
while (el = oForm.elements[i++]) if (el.className == 'autofiller') el.value= value ;
}
You can see that in action too: http://jsfiddle.net/ramsesoriginal/yYRkM/
or if input:checkbox
document.getElementById("checkbox-identifier").checked=true; //or ="checked"
I have several textfields which will populate a text area.
I managed to populate it with a javascript function. On the onblur event of a textfield, the value of the textfield is passed and the textarea is field with this value.
However, my problem is the following:
If I modify a previously filled textfield, the textarea will simply append it again.
What I need is some functionality that if:
1: If I give focus to the textfield which is already been filled and I don't modify it, it will not be appended (I implemented this with an if statement and substring.
2: If I modify a previously filled textfield, the text area DOES NOT append it again at the end of the string BUT it replaces the part of the textarea with just that text field new value.
Take for instance the following 2 textfields:
<input type="text" id="txtName" name="txtName" />
<input type="text" id="txtSurname" name="txtSurname" />
If I fill up these textfields with John and Doe respectively, the textarea value will become:
txtName=John,txtSurname="Doe"
I managed to implement this.
What I need is that if I edit txtName from John to Alex, the textarea value will be as follows:
txtName=Alex,txtSurname=Doe
and not like is currently being displayed, i.e.
txtName=John,txtSurname=Doe,txtName=Alex
Should I achieve this by using an array which will store all the textfields values?
Any help would be greatly appreciated.
Many thanks in advance.
the following code should work for you. I have wrapped the textboxes inside a div. and also registered a onkeyup event on both the textboxes.
The javascript code iterates through each textboxe inside the div, and prints its name and value in the textarea.
HTML
<div id="textBoxContainer">
<input type="text" id="txtName" onkeyup="UpdateTextArea();" name="txtName" />
<input type="text" id="txtSurname" onkeyup="UpdateTextArea();" name="txtSurname" />
</div>
<textarea id="textAreaResult"></textarea>
Javascript
<script type="text/javascript">
function UpdateTextArea() {
var textBoxContainerDiv = document.getElementById("textBoxContainer");
var textboxes = textBoxContainerDiv.getElementsByTagName("input");
var finalResult = "";
var textAreaFinalResult = document.getElementById("textAreaResult");
for (var i = 0; i < textboxes.length; i++) {
finalResult = finalResult + textboxes[i].id + "=" + textboxes[i].value + ",";
}
textAreaFinalResult.value = finalResult;
}
</script>
Hope this Helps! :)
For the record, I feel like this code is an ugly hack, but it should do the trick...
var fieldName = "txtName"; //your field name
var newValue = "Alex"; //your new value
var value = document.getElementById("my-textarea").value;
value = "," + value; //add a comma so we can ensure we don't replace the wrong value where the fieldname is a substring of another fieldname
if(value.indexOf("," + fieldName + "=") > 0) //see if a value is already defined
{
var index = value.indexOf("," + fieldName + "=") + fieldName.length + 2;
var start = value.substring(0, index); //get the portion before the value
var end = value.substring(index); //get everything else
if(end.indexOf(",") > 0)
{
end = end.substring(end.indexOf(",")); //remove the value by reducing the end to the location of the next comma
}else{
end = ""; //if there isn't another comma it was the last value in the list, so set the new end to nothing
}
value = start + newValue + end;
value = value.substring(1); //remove the starting comma we gave it
document.getElementById("my-textarea").value = value;
}else{
//append it to the end as you are already doing
}