This is not working for me. Can anyone tell me what I'm doing wrong?
function showValues() {
var uIwD;
uIwD = document.getElementById(uInputs.fWD);
alert ("You entered: " + uIwD);
}
<form id="uInputs">
Enter a value in the first field, then press Submit:<br>
<input type="number" id="fWD" value="" min="0" max ="6">
Weekday (0 to 6 for Sun to Sat)<br>
<input type="number" name="fHr" value="" min="0" max ="23">
Hour (0 to 23)<br>
<input type="number" name="fMins" value="" min="0" max ="59">
Minutes (0 to 59)<br>
<input type="number" name="fSecs" value="" min="0" max ="59">
Seconds (0 to 59)<br>
<input type="number" name="fWOffset" value="-6" min="-12" max ="12">
wOffsetHours (-12 to 12)<br>
<input type="button" value="Submit" onclick="showValues()">
</form>
I enter a value of 3 in the first input field, then I click "Submit" and I get a js alert popup saying "You entered: null"
I have tried replacing name= with ID= in the first input field, and then using just that ID in GetElementbyID(), but the result is the same.
Here is a working page where you can see the result. (I tried making a fiddle for it, but when I run it in jsfiddle, I get no alert message at all. It would seem js alert pop-ups don't work in jsfiddle.)
You are accessing it wrong. id should be a string and then you can access the Childs with id's as properties.
For example to test the first input box
function showValues() {
var uIwD;
var uIwD = document.getElementById("uInputs");
alert ("You entered: " + uIwD.fWD.value);
}
</head>
<body>
<form id="uInputs">
Enter a value in the first field, then press Submit:<br>
<input type="number" id="fWD" value="" min="0" max ="6">
Weekday (0 to 6 for Sun to Sat)<br>
<input type="number" name="fHr" value="" min="0" max ="23">
Hour (0 to 23)<br>
<input type="number" name="fMins" value="" min="0" max ="59">
Minutes (0 to 59)<br>
<input type="number" name="fSecs" value="" min="0" max ="59">
Seconds (0 to 59)<br>
<input type="number" name="fWOffset" value="-6" min="-12" max ="12">
wOffsetHours (-12 to 12)<br>
<input type="button" value="Submit" onclick="showValues()">
</form>
Related
How can i have a number limit? im trying to make it so that you can only type the number 1-100 in "app-benutzer" and 1-15 in "backend-benutzer" also is there a way to display these numbers in the input field without typing them so it would show the user that you can only type the number from 1-15.
html:
<body>
App-Benutzer: <input type="number" min="1" max="100" class='appuser'></input><br>
Backendbenutzer: <input type="number" min="1" max="15" class='backenduser'></input><br>
<button class='calcit'>Berechnen</button><br>
<span class='summe'>0.00</span><br>
<script src="./app.js"></script>
</body>
js:
const btncalc = document.querySelector('.calcit');
const summetext = document.querySelector('.summe');
btncalc.addEventListener('click', function(){
var backendanzahl= document.getElementsByClassName("backenduser")[0].value;
var appanzahl= document.getElementsByClassName("appuser")[0].value;
var mytext="Anzahl der Summe:" + (+backendanzahl * 35 + +appanzahl * 7.5) ;
summetext.textContent = mytext;
});
You can achieve this only by using HTML.
This way, you can't really write anything more than what you specify in your terms.
Clarification:
Placeholder is the attribute that you use to put some text inside of your input field, but that text will disappear as soon as you click on your element.
oninput is the Event that occurs every time that value of your input element has changed. So basically, each time you write 1 number/letter/whatever, oninput event will trigger.
That's where we put our condition.
this.value - represents what we write inside of our input element.
our value (this.value) = if (this.value > 100) (? represents something like return) return 100 ( (:) is like else) else return this.value
this.value = this.value > 100 ? 100 : Math.abs(this.value)
is equivalent to
if(this.value > 100) //this.value is what we write inside of the field
return 100;
else
return this.value;
<body>
App-Benutzer: <input type="number" min="1" max="100" oninput="this.value = this.value > 100 ? 100 : Math.abs(this.value)" class='appuser' placeholder='1-100'></input><br>
Backendbenutzer: <input type="number" min="1" max="15" oninput="this.value = this.value > 15 ? 15 : Math.abs(this.value)" class='backenduser' placeholder='1-15'></input><br>
<button class='calcit'>Berechnen</button><br>
<span class='summe'>0.00</span><br>
<script src="./app.js"></script>
</body>
You can use placeholder attribute of input field to put any text you want. This text will disapear once the user starts to edit the field. In you case you may may sat a placeholder to visualise "1-15".
<body>
App-Benutzer: <input type="number" min="1" max="100" class='appuser' placeholder="Input a value from 1 to 100"></input><br>
Backendbenutzer: <input type="number" min="1" max="15" class='backenduser' placeholder="Input a value from 1 to 15"></input><br>
<button class='calcit'>Berechnen</button><br>
<span class='summe'>0.00</span><br>
<script src="./app.js"></script>
</body>
Is it possible to have a textbox where the user will input a number and in another textbox, which will automatically add 5 to the value of the first textbox and subtract 5 to the value in the third textbox?
For example:
User input: 10
2nd textbox: 15
3rd textbox: 5
Please help
You can do it like this:
<input type="text" id="input1" onkeyup="setValues(this.value);">
<input type="text" id="input2">
<input type="text" id="input3">
<script type="text/javascript">
function setValues(value){
document.getElementById('input2').value = (parseInt(value)+5);
document.getElementById('input3').value = (parseInt(value)-5);
}
</script>
you can find solution Link.
HTML Part
<input type="number" id="input1">
<input type="number" id="input2">
<input type="number" id="input3">
JS Part
$('#input1').bind('click keyup', function(event) {
$('#input2').val(parseInt(this.value)+5);
$('#input3').val(parseInt(this.value)-5);
})
I have a HTML form field to get the month from the user.
<input type="text" placeholder="MM" size="2" name="month">
I need the field to accept only 2 digits. I tried Form validation, but it allows the user to enter more than 2 digits and then display the validation message. I don't need any validation messages for the field, but the user should be restricted to enter only 2 digits max. Is there a way we can do this using jquery?
<input type="text" placeholder="MM" size="2" name="month" maxlength="2>
The maxlength attribute;
<input type="text" placeholder="MM" size="2" maxlength="2" name="month">
It limits the amount of text you can enter by straight up not allowing you to type more.
EDIT: added snippet
The easiest is using the type='number' attribute and setting max='12':
<input type='number' max='12' min='1'>
SNIPPET
input {
width: 4ex;
padding: 0 1px;
}
input:last-of-type {
width: 6.5ex;
}
<fieldset>
<legend>Enter Date</legend>
<label>Month:</label>
<input type='number' max='12' min='1'>
<label>Day:</label>
<input type='number' max='31' min='1'>
<label>Year:</label>
<input type='number' max='3000' min='2016'>
</fieldset>
This should help you out, whenever the user presses the key down it will check the lenght and then trim the extra chars if there are any:
$("input").keydown(function() {
var value = $(this).val();
if(value.length > 2) {
value = value.substring(0, 2);
$(this).val(value);
}
});
This is frustrating!
When the input type is text and I gave maxlength as 5, it is not allowing me to enter more than 5 characters
<input type="text" maxlength="5" />
If I gave input type as number and I gave maxlength as 5, it is allowing more than 5 digits?
<input type="number" maxlength="5" pattern="[0-9]*" />
Am I missing something?
PS: This is for mobile responsive site!
Instead of maxlength use max
<input type="number" min="1" max="10000" />
Update
Small jQuery plugin
(function ($) {
$.fn.maxlength = function (length) {
return this.on('keydown', function () {
var maxlength = length || parseInt($(this).attr('maxlength'), 10) ;
if (maxlength && $(this).val().length >= maxlength) {
$(this).val($(this).val().slice(0, maxlength - 1));
}
});
};
}($));
Example
try using max...
<input type="number" max="99999" />
EDIT: Showing Validation
<form id='FormValidation'>
<input id="myNum" type="number" min="1" max="99999" />
<input type="text" maxlength="5" />
<input type="submit" />
</form>
Try adding a number greater than 99999 and hitting submit, check the updated fiddle.
This jquery could help too...
$('#myNum').keyup( function(e){
var max = $('#myNum').attr('max').length;
if ($(this).val().length >= max) {
$(this).val($(this).val().substr(0, max));
}
});
replace maxlength with max
// Max Length = 5
<input type="number" max="99999" />
// length between 1 to 5
<input type="number" min="1" max="99999" />
Updated Answer. It's so simple!
<input type="number" id="nbr"/>
<input type="text" maxlength="5" />
$(document).on('keypress','#nbr', function(e){
if($(this).val().length >= 5)
{
e.preventDefault();
}
});
And you can add a max attribute that will specify the highest possible number that you may insert
<input type="number" max="999" />
if you add both a max and a min value you can specify the range of allowed values:
<input type="number" min="1" max="999" />
hi i have a textbox in html and i want a user to enter the numeric values only which will be for eg. 0,1,2,3,4,5,6,7,8,9,10 and if a user enters 11 it should show an alert box showing "only 0-10 is allowed" since i am a newbie
so far i have this script
SCRIPT language=Javascript>
function validateForm()
{
var x=document.form["tst"]["num"].value;
var y = parseInt( x , 10 )
var i=15;
if (y>i)
{
alert("Range is Between 0-10");
return false;
}
}
</script>
here is my textbox code,
<INPUT id="num" name="num" onkeypress="return validateForm()" size="2" maxlength="2" type="text" >
You could use an HTML5 input type for ease:
<input type="number" min="0" max="10">
This could potentially remove the need for ghastly modal popups.
Try to change var i=15; to var i=11;
<input type="number" name="quantity" min="0" max="10">