I must be missing something basic. I can't give the textfield focus with the following:
<head>
</head>
<body>
<input id="hi"></input>
<script>
document.getElementById('hi').focus();
document.getElementById('hi').select();
</script>
</body>
</html>
Try this in Script:
document.getElementById("hi").innerHTML
Related
In my HTML file, I have code which takes input in a text box and then displays it on the page without re-loading the page. I am using JQuery to do this. However, the line in the code which is supposed to remove the text from the text box is not working. Please see below.
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="/static/styleblock.css">
<script type=text/javascript src="{{url_for('static', filename='jquery.js')}}">
</script>
<script type="text/javascript">
function placetextfromboxes() {
event.preventDefault();
var textFrombox = $("#yg").val();
$("input.submit").val("");
$("#word").html(textFrombox)
}
</script>
</head>
<body>
<form action="/" method="post">
<p>Name:</p>
<textarea id="yg" name="nm"></textarea>
<p><input type="submit" value="Submit:" onclick="placetextfromboxes(event);" /></p>
<p id="word"></p>
</form>
</body>
</html>
Text from "" is taken to the placetextfromboxes function and put in the variable "textFrombox". However, the line "$("input.submit").val("");" is supposed to erase the text from the box but it is not being erased. Is there anything that I am missing?
As per azro's suggestion in the comments, changing $("input.submit") to $("#yg") produces the effect you're looking for.
For convenience, the correction is offered in the snippet below.
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="/static/styleblock.css">
<script type=text/javascript src="{{url_for('static', filename='jquery.js')}}">
</script>
<script type="text/javascript">
function placetextfromboxes() {
event.preventDefault();
var textFrombox = $("#yg").val();
$("#yg").val("");
$("#word").html(textFrombox)
}
</script>
</head>
<body>
<form action="/" method="post">
<p>Name:</p>
<textarea id="yg" name="nm"></textarea>
<p><input type="submit" value="Submit:" onclick="placetextfromboxes(event);" /></p>
<p id="word"></p>
</form>
</body>
</html>
It appeared to me as though $("input.submit") had been intended to select the submit button.
Changing the value to $("input") or $("input[type=submit]") successfully selected it but, as you may guess, it simply erased the text in the button when clicked.
Changing to $("#yg").val(""), successfully erases the text in the textarea and does not affect the value stored in the textFrombox variable.
input.submit would target an input element with class submit. What you have instead is attribute type of value submit. Therefore, to select this you'd need to do input[type=submit].
But it looks like you just want $('#yg').val('').
The problem I'm having is, if the user leaves the userdata input blank, I want it to target that input and display text, notifying them that it's a required field.
I'm using innerHTML to send the message to a div or directly to the input field but nothing is displayed. I have also tried to use <p>, <span> and that did not work either. Any help is appreciated.
<!doctype html>
<html>
<head>
</head>
<body>
<form>
<input type="text" id="user1">
<div id="error"></div>
<button onClick="test()">Work</button>
</form>
<script type="text/javascript">
function test(){
var userdata = document.getElementById("user1").value;
if(userdata == ""){
document.getElementById("error").innerHTML="Please fill in Blanks";
}
}
</script>
</body>
</html>
Just change your button line in this way:
<button onClick="test();return false;">Work</button>
InnerHTML was working fine, but the default behaviour of the button was making a 'POST' request, making the page to refresh erasing the innerHtml changes. The return false statement disable this default behaviour making your code to work as it's supposed to do.
It's tested and working.
Hope It helps.
Here is the JSBIN
HTML
<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<title>JS Bin</title>
</head>
<body>
<form>
<input type="text" id="user1">
<div id="error"></div>
<button onClick="test();return false;">Work</button>
</form>
</body>
</html>
And in JavaScript add else condition also
if(userdata === ""){
document.getElementById("error").innerHTML="Please fill in Blanks";
} else{
document.getElementById("error").innerHTML="";
}
I would like to dynamically modify the values of certain form elements, more specifically certain input text fields. So far, whenever I load my html page, I am just getting the blank input field, but I am expecting it to contain the value of 1. Here is an example of how I am trying to do this.
<!DOCTYPE HTML>
<HTML>
<HEAD>
<script type="text/javascript" src="javascript/jquery-1.6.1.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
var myForm = $(this).getElementById('form1');
myForm.elements['Q01'].value = '1';
});
</script>
</HEAD>
<BODY>
<form id="form1">
<input type="text" name="Q01" maxlength="1" />
</form>
</BODY>
</HTML>
The reason this needs to be done dynamically is because the value of form could be different every time. Am I even approaching this correctly? Suggestions on how I can achieve my intended functionality?
-- EDIT --
None of the solutions seem to be doing the trick. Here is an update of my code:
<!DOCTYPE HTML>
<HTML>
<HEAD>
<script type="text/javascript" src="javascript/jquery-1.6.1.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
//$("#Q01").val("1");
$("#form1 input[name='Q01']").val("1");
//$("input[name='Q01']").val('1');
});
</script>
</HEAD>
<BODY>
<form id="form1">
<input type="text" id="Q01" name="Q01" maxlength="1" />
</form>
</BODY>
</HTML>
I am expecting when I load the page, that the input text will have 1 in it. But the input text keeps showing up empty. Any ideas?
-- EDIT --
Here is a solution derived from the answers from below that I like:
<!DOCTYPE HTML>
<HTML>
<HEAD>
<script type="text/javascript" src="javascript/jquery-1.6.1.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("#Q01").val("1");
});
</script>
</HEAD>
<BODY>
<form id="form1">
<input type="text" id="Q01" name="Q01" maxlength="1" />
</form>
</BODY>
</HTML>
If you are using jQuery you could just change the id attribute to name in the input elements and then do something like this:
$('#Q01').val('1')
The val method sets the value sou can find more here: http://api.jquery.com/val/
You've got your ready handler correct. One of the great things about jQuery is its selector engine. I recommend taking a look at the documentation to help familiarize yourself with it.
To do what you want, I'd recommend something like this:
$(document).ready(function() {
$("#form1 input[name='Q01']").val("1");
});
The #form1 is the same as document.getElementById("form1"). The input[name='Q01'] grabs all input elements that have a name attribute equal to Q01. The .val method sets the selected elements value to the string 1.
$(document).ready(function(){
$("form input[name='Q01']).val('1');
)};
This should work:
$("input[name='Q01']").val('1');
But why not to set id's to your inputs?
Hope it works
I have the following code which uses JavaScript to select a text box when the page loads. I have included a copy of my code below. My question is how can this be done in jQuery?
<!doctype html>
<html>
<head>
</head>
<body>
<input id="query">
<script type="text/javascript">
function box(query){
document.getElementById('query').focus();
}
box('query');
</script>
</body>
</html>
Thanks in advance, Callum
You also can use HTML5:
<input type="text" autofocus>
Reference: http://www.w3schools.com/html5/att_button_autofocus.asp
Cross Browser Compatibility: http://caniuse.com/#feat=autofocus
$(document).ready(function(){
$('#query').focus()
});
i have the following relevant code in the header of my html doc:
test1.value = System.Gadget.Settings.read("Date1");
And I'm trying to display the test1 value in the body of my html doc.
It displays when i use:
<input type="text" id="test1" />
But isn't working when i use (in the body):
<script type="text/javascript">
document.write(document.getElementById('test1').id);
</script>
Any suggestions would be greatly appreciated
This might be obvious, but why not just write:
<html>
<body>
<div>Here's the Date1 value:
<script type="text/javascript">
document.write(System.Gadget.Settings.read("Date1"));
</script>
</div>
</body>
</html>
If this does not do what you want, please explain what your expected output is.
That doesn't work because your script is in the header of your page and the declaration os the input text1 is in the body .. so what happends is that when the browser runs the script it won't find the object.
You will need something like this ...
<html>
<body>
<input type="text" id="test1" />
<script type="text/javascript">
document.write(document.getElementById('test1').id);
</script>
</body>
</html>