How can I make a common function in my global.js to for calling debugger; in JS. I'll basically set a value whether to debug or not. I tried the following but it's not working. Any lead will be appreciated.
<script type="text/javascript">
var debugModeVal = 1;
debugMode = function()
{
if(debugModeVal)
{
debugger;
}
return;
}
</script>
I am calling from my html file like this
<script type="text/javascript">
function callAnotherFunction()
{
debugMode;
}
</script>
use debugMode() instead of debugMode; in callAnotherFunction().
For debugging, use step out of the debugMode function to find yourself in the caller. Thanks to Jan Dvorak.
Related
From below code I am trying to load javascript file TestJScript.js dynamically and after loading want to call javascript function LoadData() exist in that file. But I am getting error please check image.
Note: Error get only on IE-8.0.6001 update 0.
Please suggest me correction such that It will work from 6 to all version of IE.
Or any another solution.
if it require any windows updates. Please let me know.
Please don't suggest with JQUERY code
Javascript file code :
function LoadData() {
alert('ok');
}
Code:
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<script>
function LoadJSFile() {
var js = document.createElement("script")
js.setAttribute("type", "text/javascript")
js.setAttribute("src", "C:\\TestJScript.js")
document.getElementsByTagName("head")[0].appendChild(js)
//call below function exist in TestJScript.js file
LoadData();
}
</script>
</head>
<body onload="LoadJSFile();">
</body>
</html>
Error Image:
Try this http://dustindiaz.com/scriptjs.
Like this:
$script('yui-base.js', function() {
// do stuff with base...
$script(['yui-anim.js', 'yui-connect.js'], function() {
// do stuff with anim and connect...
});
$script('yui-drag.js', function() {
// do stuff with drag...
});
});
The error reports a problem in the javascript file that you're loading. So the problem lies not in how you dynamically load the javascript file, but in the javascript file itself.
It looks like there is a problem with the file once it has loaded. Are you sure there is no syntax error in the file itself.
Also, I would recommend you use a relative path to the javascript file instead of the absolute path.
EDIT:
Try this:
function LoadJSFile() {
var script = document.createElement('script');
script.src = "C:\\TestJScript.js";
script.onload = function () {
LoadData();
};
document.getElementsByTagName("head")[0].appendChild(script)
}
You could try the following:
<script>
function LoadJSFile(src, callback) {
var js = document.createElement('script');
js.src = src;
js.async = true;
js.onreadystatechange = js.onload = function() {
var state = js.readyState;
if (!callback.done && (!state || /loaded|complete/.test(state))) {
callback.done = true;
callback();
}
};
document.getElementsByTagName('head')[0].appendChild(js);
}
LoadJSFile('C:\\TestJScript.js', function() {
LoadData();
});
</script>
If you are using c# code then another solution to solve this script error is, invoke script through c# code.
Code:
/
/Assiging html value to control
webBrowser.DocumentText = "HTML content";
//Calling document load completed event
webBrowser.DocumentCompleted += webBrowser_DocumentCompleted;
void webBrowser_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
HtmlDocument htmlDocument = webBrowser.Document;
HtmlElement htmlElementHead = htmlDocument.GetElementsByTagName("head")[0];
HtmlElement HtmlElementScript = htmlDocument.CreateElement("script");
HtmlElementScript.SetAttribute("text", "C:\\TestJScript.js");
htmlElementHead.AppendChild(HtmlElementScript);
htmlDocument.InvokeScript("LoadData");
webBrowser.DocumentCompleted -= webBrowser_DocumentCompleted;
}
I'm trying to make some small changes to an existing vb.net website that was written by someone who no longer works for the company, but every time a javascript function is called from a script file other than the one it's defined in, I see "Uncaught Reference Error: undefined is not a function" in Chrome's console.
Some of the scripts are being loaded in the master file:
<script type="text/javascript" src="Scripts/jquery-1.8.3.min.js"></script>
<script type='text/javascript' src="Scripts/JSExtensions.js"></script>
<script type='text/javascript' src="Scripts/GlobalUtilityFunctions.js"></script>
<script language="javascript" type="text/javascript">
jQuery.event.add(window, "load", resizeFrame);
jQuery.event.add(window, "resize", resizeFrame);
function resizeFrame() {
}
</script>
And the rest are loaded in the page itself:
<script type='text/javascript' src="Scripts/GridCalcFunctions.js"></script>
<script type='text/javascript' src="Scripts/InputEventHandlers.js"></script>
<script type='text/javascript' src="Scripts/FocusHandlers.js"></script>
<script type='text/javascript' src="Scripts/ProjectPageFunctions.js"></script>
<script type="text/javascript">
$(document).ready(function () {
});
$(window).unload(function () {
SaveOnExit();
});
function setPIDNumberLabel(ctlID, strVal) {
var val = strVal;
var ctl = top.$get(ctlID);
if (ctl != null) {
ctl.innerHTML = val;
}
}
</script>
GlobalUtilitesFunctions has no trouble accessing JSExtensions on other pages, but does here even though both are loaded in the master. I thought that must mean that the problem is caused by one of the files loaded on this page, but commenting them all out doesn't fix the issue.
As a specific example, GlobalUtilitiesFunctions contains this:
function GetAttributeSelector(attName, attValue, attOperator,attNot) {
attOperator = String.deNullValue(attOperator, "=");
[more code]
}
And I get an error that String.deNullValue is undefined, but over in JSExtenstions is:
String.iifValueIsNullOrEmpty = function (val, trueVal,falseVal) {
falseVal = String.getArgValue(falseVal, val);
if (String.isNullOrEmpty(val)) {
return trueVal;
}
else {
return falseVal;
}
}
String.deNullValue = function (val,defaultVal) {
var ret = "";
defaultVal = String.iifValueIsNullOrEmpty(defaultVal,"");
ret = String.iifValueIsNullOrEmpty(val,defaultVal);
return ret;
}
I've also tried running the site on a server (instead of inside Visual Studio) without solving the problem. Does anyone have an idea what might be causing this?
Here you can see this:
"A variable declared (using var) within a JavaScript function becomes LOCAL to the function.
The variable gets a local scope: It can only be accessed from within that function."
try to define functions like
function deNullValue(val,defaultVal) {
var ret = "";
defaultVal = String.iifValueIsNullOrEmpty(defaultVal,"");
ret = String.iifValueIsNullOrEmpty(val,defaultVal);
return ret;
}
In the document.load I call the global functions alertabc(),I have defined it,but but the brower prompt that can not find the function.
<script>
function alertabc(){
alert('abc');
clearInterval(s);
}
var s;
$(function () {
s = setInterval("alertabc()", 100);
});
<script>
As cookie said, your script tag is not closed,
<script>
function alertabc(){
alert('abc');
clearInterval(s);
}
var s;
$(function () {
s = setInterval(alertabc, 100);
//good practice --^--as Brad said
});
</script>
//-^ do close by putting / forward slash
I wrote some html/css/javascript code that was taken verbatim from a javascript textbook. For some reason, the code does not run correctly in my browser (which is the newest version of Firefox). When I click the button, the javascript function "toggleStyle()" does not execute in the browser at ALL. This is the code for the button:
<button type="button" onclick="toggleStyle()">Toggle Style</button>
This is the javascript coding. Note that when I click the button, not even the alert() method is executed:
function toggleStyle() {
alert("toggleStyle() is working.");
var divMessage = document.getElementById("divMessage");
if (divMessage.className === "message-style1") {
divMessage.className = "";
}
else {
divMessage.className = "message-style1";
}
Did you put the code inside <script type="text/javascript">?
<script type="text/javascript">
function toggleStyle() {
alert("toggleStyle() is working.");
var divMessage = document.getElementById("divMessage");
if (divMessage.className === "message-style1") {
divMessage.className = "";
}
else {
divMessage.className = "message-style1";
}
}
</script>
The above code is working:
For starters, I don't see the end } brace; do you have one?
Also, where is the function defined? Does the script get loaded? Are there any errors?
<html>
<head>
<script type="text/javascript"
src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
<script type="text/javascript">
function insertParamIntoField(anchor, param, field) {
var query = anchor.search.substring(1, anchor.search.length).split('&');
for(var i = 0, kv; i < query.length; i++) {
kv = query[i].split('=', 2);
if (kv[0] == param) {
field.val(kv[1]);
return;
}
}
}
$(function () {
$("a.reply").click(function (e) {
console.log("clicked");
insertParamIntoField(this, "replyto", $("textarea"));
e.preventDefault();
return false; // prevent default action
});
});
</script>
</head>
<body>
<textarea></textarea>
<a class="reply" href="?replyto=you">TEST</a>
</body>
</html>
what im trying to is when i click the link, the replyto parameter is inserted into the textarea, in this example "you"it was working 2 days ago! i dnt know whats wrong
Edit: I falsely assumed you were using firebug, from comments I see you weren't and that installing it resolved your issue. This line:
console.log("clicked");
Will blow up if firebug isn't installed and always in IE, when testing in an environment without a console, be sure to remove any calls to it...it'll throw a JavaScript error otherwise.
Is your internet connection working ok? You're using jQuery from google API, so what happens if you reference a local version?
Also, what happens when you click: http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js?