Thank you in advance for helping me with my issue. I was wondering if someone could explain this for me as i am self teaching about JavaScript JQuery. What i am trying to do is push a message into a variable that is in the parameters of a function. Then i want to display the message using the function by calling it back to the html file that i originally had. So i want write a message in my function and print to my html page. I think i maybe in the right direction here is my source code. I am trying to get use to write with external javascript files as i think it is much cleaner way of working with HTML, CSS3, and JavaScript.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title></title>
<script type="text/javascript" src=".js"></script>
<link rel="stylesheet" type="text/css" href="mystyle.css">
</head>
<body>
<form>
<input type="button" value="Click me" id="message "onclick="test();" />
</form>
</body>
</html>
External JavaScript file.
function test(message){
alert("Hello");
}
Use this.value to get the value of the input
<input type="button" value="Click me" id="message" onclick="test(this.value);" />
And then use the message you get
function test(message){
alert(message);
}
To show this message on your page, create an element on the page
<div id="message"></div>
Then, in your test function, instead of alert, set the innerText or innerHTML to the message
document.getElementById('message').innerText = message;
To show message in popup do it this way
Html:
<input type="button" value="Show message in popup" id="message "onclick="test2('hii this is my message');" />
JS:
function test2(message)
{
alert(message);
}
To show message in div
Html:
<input type="button" value="Show message in div" id="message "onclick="test('hii this is my message');" />
<div id="message"> </div>
JS
function test(message)
{
document.getElementById("message").innerHTML = message;
}
Demo : Fiddle
Adding the message: The easy way to do this would be by using jQuery or a javascript library of your choice. Otherwise, you can simply do this:
Create an empty div to display the msg with an id="msg"
and in your javascript function:
document.getElementById("msg").innerHTML = "Your message";
jQuery is much more fun: you can use readily available functions like .html() and .append()
You definitely want to do this, as it is much MUCH cleaner to do so. It also lets you use the same code in multiple places.
Look at this: http://www.w3schools.com/js/js_whereto.asp
(down by 'external JavaScript')
Essentially, you need to save the .js file as an actual file, like filename.js:
<script type="text/javascript" src="filewithcode.js"></script>
where filewithcode.js is the file path to the JavaScript file you have created.
Hope this helps
Related
I need build code such : http://fiddle.jshell.net/bwKZt/152/
but my code dosen't work ! I am a beginner. Please help me.
index.php:
<!DOCTYPE html><html>
<head>
<script>
$("#label").bind("keyup", changed).bind("change", changed);
function changed() {
$("#url").val(this.value);
}
</script>
</head>
<body>
<input type="text" id="label" />
<input type="text" id="url" readonly />
</body>
</html>
Some of the JavaScript here isn't native JavaScript , but is using a plugin called jQuery that makes searching and manipulating HTML elements easier.
When you see $(), that's the jQuery way of finding elements. But it won't work because you don't have jQuery referenced at all.
If you don't want to use jQuery, you can find elements with something like document.getElementById('label').
But lots of people use jQuery to make referencing page elements short and sweet, as with $('#label').
Try to reference jQuery first, like:
<!DOCTYPE html><html>
<head>
<!-- The below line references an externally hosted copy of jQuery 2.2.4 -->
<script type="text/javascript" src="https://code.jquery.com/jquery-2.2.4.min.js"></script>
<script>
// The below chunk is telling it to bind to the keyup event only AFTER the document has fully loaded.
// Sometimes when your binding code is executed, the elements you wish to bind to aren't loaded yet.
$(document).ready(function(){
$("#label").bind("keyup", changed).bind("change", changed);
});
function changed() {
$("#url").val(this.value);
}
</script>
</head>
<body>
<input type="text" id="label" />
<input type="text" id="url" readonly />
</body>
</html>
The first problem is because you haven't include jquery with a script tag to solve that add this code in the head of you html file if you have the Internet connection to load Jquery from CDN
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.js"></script>
or you can download Jquery file from Jquery site and you will have it locally
after that you must execute this code after the executing the jquery ready function
$(document).ready(function(){
$("#label").bind("keyup", changed).bind("change", changed);
function changed() {
$("#url").val(this.value);
}
})
I am trying to pass filepath value to publish.bat.
Can some one please help me parameterize below JavaScript.
<html>
<head>
<HTA:Application id="AppExecute"
ApplicationName="AppExecute"
WindowState="maximize">
<script language="JavaScript"><!--
function myapp(filepath){
var cmd = new ActiveXObject("WScript.Shell");
cmd.run("cmd /K CD C:\\publish & publish.bat C:\\publish\\prop\\lvl.Prop "&filepath)
}
--></script>
</head>
<body>
<font color=Blue><font size=3>Test Publisher
<br>
<Input type="text" name="filepath" title = "Do not change name of property files e.g. l2.ese">
<input type="button" value="CMD" onclick="myapp(filepath)"><br>
</form></center>
</body>
</html>
I am getting Error:
Script Error
Your code has several mistakes...
#Teemu explained some of them in the comment.
Then your buttons aren't properly enclosed within a form element. As I can see, there is only an ending tag for the form element.
After correcting that, you should change onclick event to:
onclick="myapp(this.form.filepath.value)"
For some reason I am getting this issue: Uncaught TypeError: Cannot read property 'value' of null on the document.getElementById line. What is the issue?? I have no clue.
HTML Code:
<html>
<head>
<title>I am a chrome extension</title>
<link rel="stylesheet" href="css/style.css" media="screen" type="text/css" />
<script src="scripts.js"></script>
</head>
<body bgcolor="#34495e">
<div class="login-card">
<h1>Please Enter Your Birthday</h1><br>
<form>
<input type="date" name="user" placeholder="Username">
<input type="submit" id="age" name="submit" class="login login-submit" value="Submit">
</form>
</div>
</body>
</html>
scripts.js
function getAge()
{
var age = document.getElementById("age").value;
console.log(age);
}
document.getElementById('age').onclick = getAge();
Using parentheses after a function invokes the function. To bind the event to the function simply reference getAge without parentheses, like this:
document.getElementById('age').onclick = getAge;
You should also be sure to wait until after the DOM is completely loaded using the onload event. You should also take time to carefully read properly bind javascript events.
Because you're including the script in the head, and it loads before the dom elements do.
You'll need to apply pswg's answer as well.
The way to fix this is simply use window.onload
window.onload = function () {
document.getElementById("age").onclick = getAge;
}
This is because you include you js file in the head, before your actual html gets evaluated. You cant getElementById because the element is not there yet!!
generally, js files are include at the bottom, right above the closing body tag. To make sure, use document.onload();
Something is wrong here, and all the suggestions I've tried from others with similar questions don't seem to work.
I have two files: myPage.html and myCode.gs in google scripts. I have deployed the html file as a web app, and I have figured out (with help) how to make the onclick event for the 'submit' button to trigger the emailTech function from the myCode.gs file just fine.
Now I want to insert the value from the text box in the html file into the email that is called from the onClick event. I have tried document.getElementById('textBoxId').value, but I get the following error "Reference Error: "document" is not defined. " What gives?
myPage.html file:
<html>
<head>
<title>Test Page</title>
</head>
<body>
<input type="button" onClick="google.script.run.emailTech();" value="Submit" />
<input type="text" value=" " id = "textBox" name = "textBox" />
</body>
<script type="text/javascript">
</script>
</html>
myCode.gs file:
function doGet() {
return HtmlService.createHtmlOutputFromFile('myPage');
}
function emailTech(){
var nameBox = document.getElementById('textBox').value;
var message = "This is the text box value" + nameBox;
MailApp.sendEmail("123#xyz.com", "This is the subject", message );
}
The error message is correct - in your Apps Script function emailTech(), there is no variable in scope that's named document.
You've got two different ways of deploying Apps Script WebApps mixed up. Since you're using the HTML Service (and your user interface is an html file), you can't use the UI Service methods (like getElementById()) to access input values. So, you'll do something different.
To tie the submit button and input field together, use a form, enclosed in <form> tags. The submit button will still have an onclick function, but now it will be a javascript function embedded in your HTML, which will pass all the input from the form to your emailTech() function.
In your apps-script-side handler, you'll receive the form input as an Object, with the fields from the form as key-value pairs. The key is the name from the field.
The general solution is described in this answer. Here's a version that fits your code. I've left out the success and failure handling that Arun shows. You should build in error checking before deploying this in real life, of course.
Code.gs
function doGet() {
return HtmlService.createHtmlOutputFromFile('myPage');
}
function emailTech(form){
var nameBox = form.techEmail;
var message = "This is the text box value" + nameBox;
MailApp.sendEmail("email#somewhere.com", "This is the subject", message );
}
myPage.html
<html>
<head>
<title>Test Page</title>
</head>
<body>
<form>
<input type="text" value=" " name="techEmail" />
<input type="button" onClick="formSubmit()" value="Submit" />
</form>
</body>
<script type="text/javascript">
function formSubmit() {
google.script.run.emailTech(document.forms[0]);
}
</script>
</html>
This has been driving me crazy- I can't figure out why it wont work!
I have two files: myPage.html and myCode.gs in google scripts. I have deployed the html file as a web app, and I want the onclick event for the submit button to trigger the emailTech function from the myCode.gs file but it won't work! When I run the function straight from the file, it works fine.
I've done a few hours of research and tried to add <script type="text/javascript" src="myCode.gs"></script> but that causes an error when I refresh the web app. I have tried calling the function in the onClick event as onClick= "google.script.run.emailTech()" and onClick= "emailTech()" but neither work. I have also tried loading the emailTech function into the script tag in the header, but that didn't work either! What am I missing? Please help!
myPage.html file:
<script type="text/javascript"></script>
<body>
<input type="submit" onclick="emailTech();" value="Submit" />
</body>
myCode.gs file:
function doGet() {
return HtmlService.createHtmlOutputFromFile('myPage');
}
function emailTech(){
Logger.log("is this firing?");
var message = "This is the email message";
MailApp.sendEmail("XYZ#abc.com", "This is the subject", message );
}
You were actually on track with this:
<script type="text/javascript"></script>
<body>
<input type="button" onclick="emailTech();" value="Submit" />
</body>
Don't use a submit; use a button. The semantics of submits and onclick handlers are a little bizarre (not just because of HtmlService sandboxing, but even in general) and don't play well with google.script.run. This is documented in the HtmlService user guide:
" You cannot use this technique with a regular submit button"
EDIT: New answer - use google.script.run.
<script type="text/javascript"></script>
<body>
<input type="button" onclick="google.script.run.emailTech();" value="Submit" />
</body>