All inputs from page
I have this html page which is dynamical created, which contains some divs. Every div-question(0,1,2, etc) contain an input based on which answer type the user chose. I want to validate every single inputs from page and:
If value of one input type number,text,date is != "" alert("something")
else send the value in an array;
If checkbox/radio is not checked alert("something");
I tried something like this:
let nrDiv = document.getElementsByClassName("div-question");
let existInput = nrDiv[0].querySelector("input[type='text']");
let numberInput = nrDiv[0].querySelector("input[type='number']");
if (document.body.contains(existInput)) {
for (let i=0; i < nrDiv.length ;i++) {
let container = document.getElementsByClassName("div-questions" + i + "");
let userInputAnswer = container[0].querySelector("input[type='text']");
if (userInputAnswer.value == "") {
alert("Adaugati un raspuns!")
return;
}
if (userInputAnswer.value != ""){
let answer = {
question: questions[i].textQuestion,
answer: userInputAnswer.value
}
answers.push(answer);
}
}
}
It's working but if I come with another for loop, for input type="number" is not working anymore. I'm getting value null. So if I come with this:
if (document.body.contains(numberInput)) {
for (let i=0; i < nrDiv.length ;i++) {
let container = document.getElementsByClassName("div-questions" + i + "");
let userInputAnswer = container.querySelector("input[type='number']");
if (userInputAnswer.value == "") {
alert("Adaugati un raspuns!")
return;
}
if (userInputAnswer.value != ""){
let answer = {
question: questions[i].textQuestion,
answer: userInputAnswer.value
}
answers.push(answer);
}
}
}
And for the checkbox and radio inputs I don't have any idea. I want something like this:
If all inputs are not empty and minimum one checkbox/radio is checked, send the answer and question in an array else alert("error");
I feel like this is simple once you add the required attribute and/or a pattern.
This is a simple POC:
<form action="">
<input type="text" required>
<input type="number" required>
<input type="checkbox" required>
<input type="radio" required>
<input type="date" required>
<button type="submit">Submit</button>
</form>
Notice that when you click the submit button, it does the verification you want, in this case != "".
Related
I created a form with some input fields and the user needs to fill at least one field and if the user doesn't select any then the error will be shown. I achieve that goal but I need to show my custom require message as invalid. Because of the oninvalid on every input, My code is not working properly but I want this message to show so how can I remove oninvalid from the rest of the input fields rather than the filled one?
<form>
<input name="youtube" oninvalid="this.setCustomValidity('Please fill out at least one social media field')" required/>
<input name="vimeo" oninvalid="this.setCustomValidity('Please fill out at least one social media field')" required/>
<input name="pinterest" oninvalid="this.setCustomValidity('Please fill out at least one social media field')" required/>
<input type="submit" name="submit" value="Submit" id="ls-submit">
</form>
document.addEventListener('DOMContentLoaded', function () {
const inputs = Array.from(document.querySelectorAll('input[name=youtube], input[name=vimeo], input[name=pinterest]'));
const inputListener = e => inputs.filter(i => i !== e.target).forEach(i => i.required = !e.target.value.length, i => i.oninvalid = !e.target.value.length);
inputs.forEach(i => i.addEventListener('input', inputListener));
});
I really don't have an idea what to do. We can also use alert as an error message and I tried that too but didn't get any success.
You could remove oninvalid and required from all inputs and check it instead with javascript:
var inputs = document.querySelectorAll('input');
document.querySelector('button').addEventListener('click', function() {
var valid = false;
for(i = 0; i < inputs.length; i++) {
if ( inputs[i].value != "" ) {
valid = true;
break;
}
}
if (valid) {
document.querySelector("form").submit();
}
else {
alert('Please fill out at least one social media field');
}
});
Working example (with 'alert' instead of 'setCustomValidity'):
var inputs = document.querySelectorAll('input');
document.querySelector('button').addEventListener('click', function() {
for(i = 0; i < inputs.length; i++) {
var valid = false;
if ( inputs[i].value != "" ) {
valid = true;
break;
}
}
if (valid) {
document.querySelector("form").submit();
}
else {
alert('Please fill out at least one social media field');
}
});
<form action="https://stackoverflow.com" method="GET">
<input name="youtube" value="">
<input name="vimeo" value="">
<input name="pinterest" value="">
<button type="button">submit</button>
</form>
Im trying to write a validation for 2 groups of fields. I have 6 inputs, 3 for text name and 3 more for id number... the validation should do this "if input name="RE_SignedByID" has an input type name="RE_SignedByName", then other inputs name="RE_SignedByID", should NOT contain the same name="RE_SignedByName" More easy explanation... one ID number should have only one Person Name (Id number is unique for one person name). What can I use for that? Should I map() all the inputs?
Those are my inputs:
<div id="signedBy" class="clearfix">
<label>Signer, person ID & name</label>
<span id="signedByID" class="ids half">
<input type="text" name="RE_SignedByID" placeholder="personID, person1" data-validate="" tabindex="101" required>
<input type="text" name="RE_SignedByID" placeholder="personID, person2" data-validate="" tabindex="103">
<input type="text" name="RE_SignedByID" placeholder="personID, person3" data-validate="" tabindex="105">
</span>
<span class="names half">
<input type="text" name="RE_SignedByName" placeholder="name, person1" tabindex="102" required>
<input type="text" name="RE_SignedByName" placeholder="name, person2" tabindex="104">
<input type="text" name="RE_SignedByName" placeholder="name, person3" tabindex="106">
</span>
</div>
I guess it should also be an "on change" function? or can I make the validation on click? Some ideas...? Im actually compleatley lost here...
Thanks in advance!!!
Maybe use different class names for all 3 of them to make them unique?
<input class="name1">
<input class="name2">
<input class="name3">
I'm not sure what you mean but if you want to make the input types unique and not call them all when you write class="names half", then you should give them all unique class names.
So from my understanding you don't want multiple fields to have the same value.
My approach would be this:
let inputTimeout = null; //set an empty timeout object
let vars = [null, null, null, null]; // create an array containing as many nulls as you have inputs
$('.nameInput').on('keyup', function(){
let self = $(this);
clearTimeout(inputTimeout); //clear the timeout
inputTimeout = setTimeout(function(){ //set a timeout to check whether there is a dupe after the user has stopped typing
if (vars.indexOf(self.val()) == -1){ //check if the vals array contains the newly entered string
vars[self.attr('data-inputnum')] = self.val(); //insert the value into the array
}else{
//handle duplicates here
}
}, 500); //500ms is a sensible value for end of user input, change it if users complain that your app is too fast/slow
});
You then just have to edit your HTML a bit so that all name inputs have a class in common (i used .nameInput) and have a data-inputnum attr.
This would look something like this:
<input type="text" name="RE_SignedByName" placeholder="name, person1" tabindex="102" class='nameInput' data-whichinput='0'/>
<input type="text" name="RE_SignedByName" placeholder="name, person2" tabindex="103" class='nameInput' data-whichinput='1'/>
<!--and so on-->
Of course, never rely on JavaScript verification alone, always also check inside your backend. However this would be out of scope for this answer.
Hi Thanks all for the help, made me realize a couple of things till I got the answer. This is my working code:
var valSignedID = $("[name=SignedByID]").map(function() {
return this.value.trim();
}).get();
var valOwnersID = $("[name=OwnersID]").map(function() {
return this.value.trim();
}).get();
valSignedID.sort();
valOwnersID.sort();
for (var i = 0; i < valSignedID.length - 1; i++) {
if (valSignedID[i] == valSignedID[i + 1] && valSignedID[i] != "") {
alert(" You can not have duplicated signers ID's");
return false;
// break;
}
}
for (var i = 0; i < valSingedName.length; i++) {
if (valSingedName[i] == valSingedName[i + 1] && valSingedName[i] != "") {
alert(valSingedName[i] + " should not have different ID");
//return false;
}
}
How can I make a form so they cannot repeat the same values in the Input?
I tried a way like:
var text1 = document.getElementById('num1').value;
var text2 = document.getElementById('num1').value;
var textform = [text1,text2];
if (
text1 == text2 ||
text2 == text1
) {
alert("repeated numbers");
return false;
}
But this is gets me into two troubles:
- If I put no value, it will say: Repated Numbers
- If I want to make this for 100 form values, it takes a lot of code
You could give all of your text elements the same class, and grab their values by class name to simplify building the array of text values.
<input type="text" class="checkDupe" id="input1" />
<input type="text" class="checkDupe" id="input2" />
Then grab their values in javascript
var checkDupes = document.getElementsByClassName('checkDupe');
var textArray = [];
for(var i = 0; i < checkDupes.length; i++){
textArray.push(checkDupes[i].value);
}
Now that we have an array of values that they entered, check to see if any of them repeat by sorting the array, and seeing if any two elements side-by-side are the same.
textArray.sort();
var dupes = false;
for(var i = 0; i < textArray.length; i++){
if(textArray[i] === textArray[i + 1]) dupes = true;
}
If we find any duplicates, let the user know.
if(dupes) alert('Repeated numbers!');
You could do something like this:
var text1 = document.getElementById('num1').value;
var text2 = document.getElementById('num2').value;
var textform = [text1, text2];
var seen = {};
textform.forEach(function(value) {
if (seen[value]) {
alert('Bad!');
}
seen[value] = true;
});
In the code above, we loop over each value in the array. The first time we encounter it, we push it into a map. Next time (if) we hit that value, it will exist in the map and it will tell us we've seen it before.
If you give all the input's a common class then you quickly loop through them.
The HTML:
<input type="text" name="num1" class="this that number"></input>
<input type="text" name="num2" class="this number"></input>
<input type="text" name="num3" class="that number"></input>
<input type="text" name="num4" class="number"></input>
<input type="text" name="num5" class=""></input> <!-- we don't want to check this one -->
<input type="text" name="num6" class="number that this"></input>
<input type="text" name="num7" class="this that number"></input>
The JavaScript:
// get all the inputs that have the class numbers
var ins = document.querySelectorAll("input.numbers");
// a tracker to track
var tracker = {};
// loop through all the inputs
for(var i = 0, numIns = ins.length; i < numIns; ++i)
{
// get the value of the input
var inValue = ins[i].value.trim();
// skip if there is no value
if(!inValue) continue;
// if the value is already tracked then let the user know they are a bad person
// and stop
if(tracker[inValue])
{
alert("You are a bad person!");
return;
}
// track the value
tracker[inValue] = true;
}
You could also enhance this to let the user know which inputs have duplicate values:
// get all the inputs that have the class numbers
var ins = document.querySelectorAll("input.numbers");
// a tracker to track
var tracker = {};
// loop through all the inputs
for(var i = 0, numIns = ins.length; i < numIns; ++i)
{
// get the value of the input
var inValue = ins[i].value.trim();
// skip if there is no value
if(!inValue) continue;
// if the value is already tracked then error them
if(tracker[inValue])
{
// mark the current input as error
ins[i].className += " error";
// mark the first found instance as an error
ins[tracker[inValue]].className += " error";
}
// save the index so we can get to it later if a duplicate is found
tracker[inValue] = i;
}
Here's a way of doing it that automatically picks up all the text inputs in your document and validates based on what you're looking for. Would be simple enough to expose the valid value and make this the validation handler (or part of one) that handles a form submission.
<meta charset="UTF-8">
<input id="num1" type="text" value="foobar1">
<input id="num2" type="text" value="foobar2">
<input id="num3" type="text" value="foobar3">
<input id="num4" type="text" value="foobar4">
<input id="num5" type="text" value="foobar5">
<button onClick="checkValues();">Validate</button>
<script>
function checkValues() {
var inputs = document.getElementsByTagName('input');
arrInputs = Array.prototype.slice.call(inputs);
var valid = true;
var valueStore = {};
arrInputs.forEach(function(input) {
if (input.type == 'text') {
var value = input.value.toUpperCase();
if (valueStore[value]) {
valid = false;
} else {
valueStore[value] = true;
}
}
});
if (valid) {
alert('Valid: No matching values');
} else {
alert('Invalid: Matching values found!');
}
}
</script>
With jquery you can iterate directly over the inputs.
<form>
<input type="text" >
<input type="text" >
<input type="text" >
<input type="text" >
<input type="text" >
<input type="text" >
<button>
TEST
</button>
</form>
function checkValues(){
var used = {};
var ok = true;
$('form input[type="text"]').each(function(){
var value = $(this).val();
if(value !== ""){
if(used[value] === true){
ok = false;
return false;
}
used[value] = true;
}
});
return ok;
}
$('button').click(function(event){
event.preventDefault();
if(!checkValues()){
alert("repeated numbers");
};
});
https://jsfiddle.net/8mafLu1c/1/
Presumably the inputs are in a form. You can access all form controls via the form's elements collection. The following will check the value of all controls, not just inputs, but can easily be restricted to certain types.
If you want to include radio buttons and checkboxes, check that they're checked before testing their value.
function noDupeValues(form) {
var values = Object.create(null);
return [].every.call(form.elements, function(control){
if (control.value in values && control.value != '') return false;
else return values[control.value] = true;
});
}
<form id="f0" onsubmit="return noDupeValues(this);">
<input name="inp0">
<input name="inp0">
<input name="inp0">
<button>Submit</button>
</form>
For old browsers like IE 8 you'll need a polyfill for every.
You can simply get all inputs iterate them twice to check if they are equals
var inputs = document.getElementsByTagName('input');
for (i = 0; i < inputs.length; i++) {
for (j = i + 1; j < inputs.length; j++) {
if (inputs[i].value === inputs[j].value) {
console.log('value of input: ' + i + ' equals input: ' + j);
}
}
}
<input value="56" />
<input value="12" />
<input value="54" />
<input value="55" />
<input value="12" />
I have two radio buttons on the top (YES/NO) If yes the javascript function showhideform shows another text box(certificate). This form is in a loop as you see with all my outputs.If yes is chosen and loop is 1 everything works fine onsubmit. If Yes and I submit when loop is 2 it only validates certificate textbox 2 and forgets about certificate textbox 1. I need it to validate both if yes is chosen twice.
Radio Buttons:
<input
type="radio"
value="No"
name="abc_<cfoutput>#BAdd#</cfoutput>"
id="noabc_<cfoutput>#BAdd#</cfoutput>"
onchange="showhideForm_<cfoutput>#BAdd#</cfoutput>(this.value);"/>
<label for="noabc_<cfoutput>#BAdd#</cfoutput>">No</label>
<input
type="radio"
value="Yes"
name="abc_<cfoutput>#BAdd#</cfoutput>"
id="abc_<cfoutput>#BAdd#</cfoutput>"
required="yes"
onchange="showhideForm_<cfoutput>#BAdd#</cfoutput>(this.value);"/>
<label for="abc_<cfoutput>#BAdd#</cfoutput>">Yes</label>
Show / Hide Radio Buttons:
function showhideForm_<cfoutput>#BAdd#</cfoutput>(abc_<cfoutput>#BAdd#</cfoutput>) {
if (abc_<cfoutput>#BAdd#</cfoutput> == "Yes") {
document.getElementById("div1_<cfoutput>#BAdd#</cfoutput>").style.display = 'block';
document.getElementById("div2_<cfoutput>#BAdd#</cfoutput>").style.display = 'none';
}
else if (abc_<cfoutput>#BAdd#</cfoutput> == "No") {
document.getElementById("div2_<cfoutput>#BAdd#</cfoutput>").style.display = 'block';
document.getElementById("div1_<cfoutput>#BAdd#</cfoutput>").style.display = 'none';
}
}
Validating through loop:
function doSubmit(n) {
var QnoText = ['abc_<cfoutput>#BAdd#</cfoutput>']; // add IDs here for questions with optional text input
var ids = '';
flag = true;
for (i=0; i<QnoText.length; i++) {
CkStatus = document.getElementById(QnoText[i]).checked;
ids = QnoText[i]+'Certificate_<cfoutput>#BAdd#</cfoutput>' + n;
if (CkStatus && document.getElementById(ids).value == '') {
alert('Please enter certificate number ' + n + '.');
document.getElementById(ids).focus();
flag = false;
}
}
return flag;
}
Certificate textbox:
<input
type="text"
name="abc_<cfoutput>#BAdd#</cfoutput>Certificate_<cfoutput>#BAdd#</cfoutput>"
validateat="onSubmit"
validate="maxlength"
id="abc_<cfoutput>#BAdd#</cfoutput>Certificate_<cfoutput>#BAdd#</cfoutput>"
size="54"
maxlength="120"
value="">
submit button:
//return doSubmit(1);
It looks like the n is just a numbering/index to the id of the input textbox it is validating.
Looking at your code, CKStatus seems to me is a checkbox. If it is checked, it will validate the certificate input text box according to the parameter n.
After days of working on it I have finally figured it out!! I just wanted to say thanks to everyone that has helped and this is the code for anyone who was interested!
<script type="text/javascript">
function doSubmit() {
var count =<cfoutput>#BAdd#</cfoutput>;
flag = true;
for (i=1; i<=count; i++){
var ids = 'abc_'+i +'Certificate_'+i;
var Radio = 'abc_'+i
CkStatus = document.getElementById(Radio).checked;
if (CkStatus && document.getElementById(ids).value == '') {
alert('Please enter certificate number ' +i);
document.getElementById(ids).focus();
flag = false;
}
}
return flag;
}
</script>
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"