Develop Reference

remove duplicate entry from html input boxes in JavaScript/jQuery

I have a fiddle which checks for any duplicate entry entered in html input boxes.
It works in a way that if any duplicate entry is entered in a newly added row or the rows which are already there then the alert message "duplicate" is displayed.
I have used the following script in order to make that happen.
$('input[name*="code"]').each(function() {
$(this).change(function(){
let value = $(this).val();
let count = 0;
$('input[name*="code"]').each(function() {
if ($(this).val() != '' && $(this).val() == value) {
count++;
if (count > 1) { alert('duplicate'); }
}
});
});
$(this).addClass('e');
});
$('#addRow').on('click', function(){
$('input[name*="code"]:not(.e').each(function() {
$(this).change(function(){
let value = $(this).val();
let count = 0;
$('input[name*="code"]').each(function() {
if ($(this).val() != '' && $(this).val() == value) {
count++;
if (count > 1) alert('duplicate');
}
});
});
$(this).addClass('e');
});
});
What I am trying to achieve now is when any duplicate entry is entered in html input boxes then it should get disappeared automatically and the text "Please enter different text" left to the row should be displayed, something like this
http://jsfiddle.net/zHJSF/
This is what I have tried but it doesn't seem to work.
$('input[name*="code"]').each(function() {
$(this).change(function(){
let value = $(this).val();
let count = 0;
$('input[name*="code"]').each(function() {
if ($(this).val() != '' && $(this).val() == value) {
count++;
if (count > 1) {
alert('duplicate');
($(this).val()).stop(false,true).after(' <span style="color:red;" class="error">Please enter different text</span>');
$('.error').delay(600).fadeOut();
$(this).val('');
}
}
});
});
$(this).addClass('e');
});
$('#addRow').on('click', function(){
$('input[name*="code"]:not(.e').each(function() {
$(this).change(function(){
let value = $(this).val();
let count = 0;
$('input[name*="code"]').each(function() {
if ($(this).val() != '' && $(this).val() == value) {
count++;
if (count > 1) {
alert('duplicate');
($(this).val()).stop(false,true).after(' <span style="color:red;" class="error">Please enter different text</span>');
$('.error').delay(600).fadeOut();
$(this).val('');
}
}
});
});
$(this).addClass('e');
});
});
Problem Statement:
I am wondering what changes I should make in the script above so that it get rid of any duplicate entry entered in the html input boxes.

EDIT
This should work. It will get the input values and put them into an array, then check if the value exists in the array.
javascript
$('input[name*="code"]').each(function() {
$(this).change(function(){
let element = this;
var array = $('input[name*="code"]').map(function() {
if (this != element)
return $(this).val()
return null;
}).get();
if (array.includes($(this).val())) {
$(this).val("");
$(this).attr("placeholder", "Please enter different text");
$(this).addClass("error");
} else if ($(this).hasClass("error")) {
$(this).removeClass("error");
}
});
$(this).addClass('e');
});
css
.error {
border: 1px solid red;
}

Adding Comma seperator to the input field number displays as NAN

The commas are getting added correctly, but I'm getting this error message in the console:
"The specified value "NaN" is not a valid number"
I tried by making it as type="number", still the same warning.
jQuery(function() {
var extra = 0;
var $input = jQuery(".total_crm_records");
$input.on("keyup", function(event) {
// When user select text in the document, also abort.
var selection = window.getSelection().toString();
if (selection !== '') {
return;
}
// When the arrow keys are pressed, abort.
if ($.inArray(event.keyCode, [38, 40, 37, 39]) !== -1) {
if (event.keyCode == 38) {
extra = 1000;
} else if (event.keyCode == 40) {
extra = -1000;
} else {
return;
}
}
var $this = jQuery(this);
// Get the value.
var input = $this.val();
var input = input.replace(/[\D\s\._\-]+/g, "");
input = input ? parseInt(input, 10) : 0;
input += extra;
extra = 0;
$this.val(function() {
return (input === 0) ? "" : input.toLocaleString("en-US");
});
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.0.0/jquery.min.js"></script>
Input field : <input type="text" data-type="number" maxlength="20" class="total_crm_records">

html Input type number with Thousand Separator

i want to add thousand separator on keyup event in input type number
but this work just in 6 character, if more than 6 character, value on input has reseted
this my short code
<input type="number" id="tanpa-rupiah" step="any">
var dengan_rupiah = document.getElementById('dengan-rupiah');
dengan_rupiah.addEventListener('keyup', function(e)
{
dengan_rupiah.value = formatRupiah(this.value, 'Rp. ');
});
function formatRupiah(bilangan, prefix)
{
var number_string = bilangan.replace(/[^,\d]/g, '').toString(),
split = number_string.split(','),
sisa = split[0].length % 3,
rupiah = split[0].substr(0, sisa),
ribuan = split[0].substr(sisa).match(/\d{1,3}/gi);
if (ribuan) {
separator = sisa ? '.' : '';
rupiah += separator + ribuan.join('.');
}
rupiah = split[1] != undefined ? rupiah + ',' + split[1] : rupiah;
return prefix == undefined ? rupiah : (rupiah ? 'Rp. ' + rupiah : '');
}
this my fiddle https://jsfiddle.net/C2heg/4619/

This might suit you. On keydown prevent the default action if it is not a number key. On keyup, parse the value and update it. Use the data- attributes to store and get the original value.
var elem = document.getElementById("num");
elem.addEventListener("keydown",function(event){
var key = event.which;
if((key<48 || key>57) && key != 8) event.preventDefault();
});
elem.addEventListener("keyup",function(event){
var value = this.value.replace(/,/g,"");
this.dataset.currentValue=parseInt(value);
var caret = value.length-1;
while((caret-3)>-1)
{
caret -= 3;
value = value.split('');
value.splice(caret+1,0,",");
value = value.join('');
}
this.value = value;
});
function showValue()
{
console.log(document.getElementById("num").dataset.currentValue);
}
<input type="text" id="num" maxlength="30">
<button onclick="showValue()">Get Value</button>

Ok I have posted answer below. I have added limit of 20 numbers. You can change it as per your need.
You can use Number.toLocaleString() for this purpose.
Below is working example:
// When ready.
$(function() {
var extra = 0;
var $input = $("#amount");
$input.on("keyup", function(event) {
// When user select text in the document, also abort.
var selection = window.getSelection().toString();
if (selection !== '') {
return;
}
// When the arrow keys are pressed, abort.
if ($.inArray(event.keyCode, [38, 40, 37, 39]) !== -1) {
if (event.keyCode == 38) {
extra = 1000;
} else if (event.keyCode == 40) {
extra = -1000;
} else {
return;
}
}
var $this = $(this);
// Get the value.
var input = $this.val();
var input = input.replace(/[\D\s\._\-]+/g, "");
input = input ? parseInt(input, 10) : 0;
input += extra;
extra = 0;
$this.val(function() {
return (input === 0) ? "" : input.toLocaleString("en-US");
});
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input id="amount" name="amount" type="text" maxlength="20" />

change your the input type equal to "text" then its work
<input type="text" id="tanpa-rupiah" step="any">
checkout jsfiddle

Textbox allow only decimal numbers with dot using jquery

I have one textbox.It should be allow only decimal numbers and after dot only allow two digit(example 34545.43). how we can do it using jquery i have searched in google and stackoverflow but not satisfied answer because some script is not working in chrome and firefox. I tried but it is not working properly.So need help how to do it.http://jsfiddle.net/S9G8C/1685/
Js:
$('.allow_decimal').keyup(function (evt) {
var self = $(this);
self.val(self.val().replace(/[^0-9\.]/g, ''));
if ((evt.which != 46 || self.val().indexOf('.') != -1) && (evt.which < 48 || evt.which > 57)) {
evt.preventDefault();
}
});

This jQuery function will round the value on blur event of textbox
$.fn.getNum = function() {
var val = $.trim($(this).val());
if(val.indexOf(',') > -1) {
val = val.replace(',', '.');
}
var num = parseFloat(val);
var num = num.toFixed(2);
if(isNaN(num)) {
num = '';
}
return num;
}
$(function() { //This function will work on onblur event
$('#txt').blur(function() {
$(this).val($(this).getNum());
});
});
Number: <input type="text" id="txt" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
You can directly remove the 3rd digit when the user enters that.
var txt = document.getElementById('txtId');
txt.addEventListener('keyup', myFunc);
function myFunc(e) {
var val = this.value;
var re = /^([0-9]+[\.]?[0-9]?[0-9]?|[0-9]+)$/g;
var re1 = /^([0-9]+[\.]?[0-9]?[0-9]?|[0-9]+)/g;
if (re.test(val)) {
//do something here
} else {
val = re1.exec(val);
if (val) {
this.value = val[0];
} else {
this.value = "";
}
}
}
<input id="txtId" type="text"></input>

Sum with jquery not working

I have a lot of labels as shown on a page. I want to sum the values and store them in final_cpa.
HTML :
<label class="tmpcpa">32.1</label>
JS :
function calculate_final_cpa() {
var final_cpa = 0;
var allfilled = false;
$('.tmpcpa').each(function () {
if ($(this).val() != 0) {
final_cpa += parseInt($(this).text()) || 0;
allfilled = true;
} else {
allfilled = false;
}
});
console.log(final_cpa);
console.log(allfilled);
}
var run = setInterval(calculate_final_cpa, 500);
However final_cpa is always 0 and allfilled remains false.

That because label don't have a value attribute so the .val() function will always return an empty string, you have to use .text() instead to get the text content inside the label element :
if ($(this).val() != 0) {
Should be :
if ($(this).text() != 0) {
NOTE : as Rayon mentioned in the comment below text() will always return string so better to change the zero in condition to string '0'.
Hope this helps.
function calculate_final_cpa() {
var final_cpa = 0;
var allfilled = false;
$('.tmpcpa').each(function () {
if ($(this).text() != '0') {
final_cpa += parseInt($(this).text()) || 0;
allfilled = true;
} else {
allfilled = false;
}
});
console.log(final_cpa);
console.log(allfilled);
}
calculate_final_cpa();
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<label class="tmpcpa">32.1</label>

Check $(this).text() != "" instead of $(this).val() != 0 as You can not use .val() for getting label text. .text() will give you text of label
if ($(this).text() != "" && $(this).text() != "0") {
....
}

First thing, you need to use .text() instead of .val() to get the text inside a label. Also, if you are expecting your result to contain decimal digits, you need to use parseFloat():
function calculate_final_cpa() {
var final_cpa = 0;
var allfilled = false;
$('.tmpcpa').each(function () {
if ($(this).text() != 0) {
final_cpa += parseFloat($(this).text()) || 0;
allfilled = true;
} else {
allfilled = false;
}
});
console.log(final_cpa);
console.log(allfilled);
}
calculate_final_cpa();
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.0.0/jquery.min.js"></script>
<label class="tmpcpa">32.1</label>
<br />
<label class="tmpcpa">32.1</label>

Change
if ($(this).val() != 0)
to
if (parseInt($(this).text()) != 0)

Beside your code had an error, you should check the content of the table before parsing them. And because you use decimals in your example, you should switch from parseInt to parseFloat too.
And your allfilled varibale makes no sense, because if the last element of .tmpcpa was empty, it will be false again. So i removed it.
function calculate_final_cpa() {
var final_cpa = 0;
$('.tmpcpa').each(function () {
var content = $(this).text();
final_cpa += IsNumeric(content) ? parseFloat(content) : 0;
});
console.log(final_cpa);
}

Test it with .text instead of val() as label has no value property
Use Unary plus(+)/Number operator instead of parseInt as parseInt will ignore floating point
Use length of lable-elements to test whether all the label has values !== 0
function calculate_final_cpa() {
var final_cpa = 0;
var countOfFilled = 0;
$('.tmpcpa').each(function() {
if ($(this).text() !== '0') {
final_cpa += +($(this).text()) || 0;
++countOfFilled;
}
});
console.log('Total: ' + final_cpa);
console.log('All filled ' + $('.tmpcpa').length === countOfFilled);
}
calculate_final_cpa();
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<label class="tmpcpa">32.1</label>
<label class="tmpcpa">32.1</label>
<label class="tmpcpa">0</label>