I have an HTML input box and want to use jQuery to get the value of user input as it is entered, however the DOM seems to be activated upon page load and it never takes the value of the input box as the user types it in. I'm new to this and can't figure out what I'm doing incorrectly, any ideas would be appreciated!
<input id="textFilter" type="text">
function addEventHandlerForSearch() { //Javascript Handler
$('#textFilter').val();
$('#searchText').text($('#textFilter').val());
let searchVal = $('#searchText').text();
$(document).ready(function() { // DOM
$('#textFilter').keypress(addEventHandlerForSearch());
loadSavedRunkeeperTweets().then(parseTweets);
});
Simple vanilla implementation to get the value of the text box as it is typed would be:
const input = document.getElementById('textFilter');
input.onkeyup = () => {
console.log(input.value)
}
Then you could do whatever you need to with that data. If jquery is a requirement, I apologize for not including that in my answer. Not my area of expertise lol.
Related
I am creating two code mirror instances from text areas in my form, and I need those hidden text areas to be updated before submission. I have added on on change event to the script but it doesn't seem to work.
can anyone help?
Thanks
<script type="text/javascript">
function editor(id) {
var editor = CodeMirror.fromTextArea(id, {
continuousScanning: 500,
lineNumbers: true
});
editor.setSize(900, 600);
}
var config_id = document.getElementById('id_config')
var config = editor(config_id);
var remote_config_id = document.getElementById('id_remote_config')
var remote_config = editor(remote_config_id);
config.on('change',function(cMirror){
// get value right from instance
config_id.value = cMirror.getValue();
});
remote_config.on('change',function(cMirror){
// get value right from instance
remote_config_id.value = cMirror.getValue();
});
</script>
You can't use the change event for that: CodeMirror listens to changes of the hidden text area, so changing the value would fire another change event. That could cause endless loops.
The documentation contains the correct approach:
the library provides a much more powerful shortcut:
var myCodeMirror = CodeMirror.fromTextArea(myTextArea);
This will, among other things, ensure that the textarea's value is updated with the editor's contents when the form (if it is part of a form) is submitted.
That means you have a bug in the code which you didn't show above. Maybe you're using a weird way to submit the form, so CodeMirror can't notice and update the value?
One option would be to remove CodeMirror in the JavaScript which submits the form.
I have a text field that should be filled before custom saving through HTML custom button.
When a user fills this field and tries to save through custom button, the text inside this field is null even if the user fills it.
Any suggestions Please?
Many Thanks for replying to my query. Actually, I am calling the below function from custom HTML button and I saw the result from alert message as NULL value until I leave the text box. Once I click some other Field then I am getting right value and saving the record successfully. I have posted my code below please have a look and suggest me how I can achieve it. So how to get the text value if a user doesn't leave the text box and click on the Save button?
function createRecord() {
var oDescription = Xrm.Page.getAttribute("new_description").getValue();
if (oDescription != null) {
var callentity = {};
var activityId;
var currentUserId = Xrm.Page.context.getUserId();
var oLeadId = Xrm.Page.getAttribute("new_lead").getValue()[0].id;
callentity.Subject = "Call Activity";
callentity.Description = oDescription ;
XrmSvcToolkit.createRecord({....Some more functions here...
})
}
HTML Button code for calling above function
<input id="SaveCall" onclick="parent.createRecord()" type="button" value="Save Phonecall"></p>
Xrm.Page.getAttribute(arg).getValue(val) won't return a value until focus is lost from the arg attribute (as you've found out).
Some options you could try:
document.getElementById('new_description_i')[0].value
Removing focus from "new_description" on click of your button.
I have a form with 4 fields. I want the first of the four to have the autofocus and be the first the user fills out. But then, either by tab or mouse or whatever, when the user gets to second field, I want the cursor to end up at the end of the string to start. There is a pre-filled string in that field.
I'm using Django so I have a form widget controlling the attributes. I can get the string to show up and even get the cursor to the end, but this always causes autofocus as well on that second field. I haven't managed to get both.
Here is code I'm using so far:
Django
field = forms.URLField(
widget = forms.URLInput(
attrs = {
'placeholder': 'enter field',
# call to javascript function - this works
'onfocus': 'add_string("field_id", "string")',
}
)
)
JavaScript:
// add string to element
function add_string(id, string) {
var input = document.getElementById(id);
input.value = string;
}
I've played around with various JS scripts but to no avail. I then found setSelectionRange and played around with this like so:
input.setSelectionRange(7, 7)
Where 7 would be end of the particular "string" in the onfocus JavaScript function call, but I could't get this to work...
Finally, I played around with some jQuery that looked like this:
// focus after string, no highlight
$(document).ready(function() {
var $field = $("#field_id");
var old_val = $field.val();
$field.focus().val('').val(old_val);
});
But this did the same thing: brought initial focus to second field and brought cursor to the end.
Any idea how I can do this, get both autofocus on field one but get cursor to jump to end of pre-filled string of field two on it's focus? Might be a nice trick if I knew how to do it.
You're almost there, you just need to fire your code when your form field is focused, instead of on document ready. In my tests it was necessary to add a zero timeout, because otherwise the field value remains selected:
$(document).ready(function() {
var $field = $("#field_id");
$field.on('focus', function() {
setTimeout(function() {
var old_val = $field.val();
$field.val('').val(old_val);
}, 0);
});
});
JSFiddle demo
Im just wondering how I go about catching the event when the user is typing into a text input field on my web application.
Scenario is, I have a contacts listing grid. At the top of the form the user can type the name of the contact they are trying to find. Once there is more than 1 character in the text input I want to start searching for contacts in the system which contain those characters entered by the user. As they keep typing the data changes.
All it is really is a simple type ahead type functionality (or autocomplete) but I want to fire off data in a different control.
I can get the text out of the input once the input has lost focus fine, but this doesnt fit the situation.
Any ideas?
Thanks
Use the keyup event to capture the value as the user types, and do whatever it is you do to search for that value :
$('input').on('keyup', function() {
if (this.value.length > 1) {
// do search for this.value here
}
});
Another option would be the input event, that catches any input, from keys, pasting etc.
Why not use the HTML oninput event?
<input type="text" oninput="searchContacts()">
I would use the 'input' and 'propertychange' events. They fire on cut and paste via the mouse as well.
Also, consider debouncing your event handler so that fast typists are not penalized by many DOM refreshes.
see my try:
you should put .combo after every .input classes.
.input is a textbox and .combo is a div
$(".input").keyup(function(){
var val = this.value;
if (val.length > 1) {
//you search method...
}
if (data) $(this).next(".combo").html(data).fadeIn(); else $(this).next(".combo").hide().html("");
});
$(".input").blur(function(){
$(this).next(".combo").hide();
});
I am very new to JavaScript. I want to add the same effect as that given in the text fields of this webpage in my own page... Can any one help me with how to do it or where to learn it from.
I want my text fields to show what have to be written there but it will change as soon as I write something in it..
Another thing is that a small popup block will appear when I click on a textbox which describes what and how to write in it... like password should be alpha numeric... or more than 6 character long ect.
If you want to do this in an accessible way (and you should):
If JS is available, position a transparent input over a label inside a container and toggle the transparency of the input based on its value at document load time and whenever the focus enters of leaves the element.
I've produced a minimal example.
As for the second part of the question. That's very similar. Just have another label beside the input, and toggle its visibility when the focus enters or leaves, ignoring the value of the input. I wouldn't bother with this though, advance notice of requirements is nice!
You might want to take a look at the WMD markdown editor:
http://wmd-editor.com/
This does exactly what you're looking for.
Look at jquery:
$('#textarea').onKeyup(
function(){
$('div#mydiv').innerHTML( $(this).val() );
}
);
Thats a start. :)
HTML Input field
<input type="text" name="name" id="name" value="" />
Javascript
function hint () {
var elem = document.getElementById('name'); // get element
elem.value = "Enter Name"; // fill element with value
elem.onfocus = function () { // if the user focuses
if (elem.value === "Enter Name") { // if there is default text
elem.value = ""; // clear it
}
}
elem.onblur = function () { // if user removes focus on field
if (elem.value === "") { // if the field is empty
elem.value= "Enter Name"; // fill in a default value
}
}
}
window.onload = hint; // call the function when the page has loaded