Declare Globals In .JS File

Jul 20, 2005

If I declared an array or object in a .JS file, should it not be global throughout all the files which reference it?

View 4 Replies


ADVERTISEMENT

Declare Global Variable In Html File And Use It In Script?

May 14, 2010

I want ask how can i declare global variable in html file , and use it in java script file .

View 5 Replies View Related

Where Can I Declare Global Variables

Jul 23, 2005

I prefer to keep all my scripts in an external '.js' file. I am currently loading the external '.js' file from the header. Problem is I would like to declare a global variable in the external file, but I keep getting an error about the object does not exist.

Can someone tell me where or how to declare a global variable in an external file that is available after the page is loaded.

View 6 Replies View Related

Why Don't You Have To Declare Variables In Javascript?

Jul 20, 2005

can anybody put forward a sensible argument javascript's behaviour of
creating a new global variable whenever I assign to a previously undeclared
variable. I can't beleive this is just for the sake of convenience (surely
we learned this much from basic).

here's my proposal: all "global" (document scope) variables must be declared
by 'var' outside a function block.

failing that, does anyone know any patterns or tricks I can use to make sure
I don't create a new global variable when I accidentally misspell a variable
name?

View 10 Replies View Related

Possible To Declare A Default Value In A Function?

Jan 28, 2009

How do i declare a default value in a function? I have a simple function

function color_input(id,token){
if (!empty(token)){
document.getElementById(id).style.backgroundColor = '#2A2A2A';
document.getElementById(id).style.color = '#DDC58C';

[Code]....

You will notice that the #2 parameter is missing in the html call. Sometimes i don't have it to send. in PHP i would just set the functions second param like token=''

function color_input(id,token=''){}

How do i set a default param in a JS function?

View 2 Replies View Related

Declare An Empty Array?

Sep 14, 2010

How do i declare an empty array?

I need to iterate through a group of arrays and search for a user-chosen word every time.

The problem is i can't declare how many array elements will be needed, such as: new array = (12), because some words inside my arrays, occur more than others.

So i need to decalare an empty array with x number of possible values.

View 3 Replies View Related

How To Declare 3 Decimal Number

Aug 3, 2010

How I can declare 3 decimal number and 2 decimal number in javascript?

View 1 Replies View Related

Variabele To Declare From Website?

Jan 23, 2010

Subject :I want a variabele to declare from my website

I have made a simple webpage within a webpage

Example :

[URL]

I want to get the Code src="http://www.youtube.com/watch?v=kRopmfinsWk"> as a variabele . How do I manage this

The source code of it is:

<html>
<!-- Generated by AceHTML Freeware http://freeware.acehtml.com -->
<!-- Creation date: 11-11-2009 -->
<head>
<title></title>

[Code]....

View 2 Replies View Related

Declare A Default Value In A Function?

Jan 27, 2009

How do i declare a default value in a function? I have a simple function[code]...

View 5 Replies View Related

DOCTYPE :: Customers Does Not Declare A .dtd Document?

Jul 22, 2009

I have a problem with customer website.My script creates an Auto-Greet that overlays the page, displays in the lower left of the browser and remains visible as the user scrolls the page.

My Mockup the customer home page. This is the desired action.http:[url]....Customer website: (undesired action)http:[url]....The only difference is that my customers does not declare a .dtd document.They have a <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">. On my mock-up, I declare a .dtd document and my script works.

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http:[url]...

Question: I'm trying to figure out a way in javacript to dynamically change the <!DOCTYPE, is this possible?

View 1 Replies View Related

Declare And Initialize An Array With Key/values?

Mar 25, 2011

How to declare and initialize an array with key/values using JavaScript and then dynamically creating select dropdown and assigning key/values to the options using JavaScript?

View 1 Replies View Related

Different Ways To Declare Methods/properties Of An Object

Jul 23, 2005

Well, I've been working with JS for three years and have a great experience here. But! I still have no really acceptable answer to the following
question:

What is the principle difference between declaring methods/properties
in the constructor function body and via prototypes.

Are there any real GURUs? Let's discuss the issue.

View 2 Replies View Related

JQuery :: Ajax - Don't Declare XMLHttpRequest Object

Mar 16, 2011

I find ajax with jquery more confusing than with regular JS, b/c in jQuery you don't declare XMLHttpRequest object.. so how do you do something like:

In example I mention here,[url] namely [url] I don't understand where var 'msg' is declared, I know it comes from the back-end, but HOW is it passed to the front-end? (how do you do this w/o responseText or something similar?)

I'm trying to connect to a send-mail jsp with ajax.. the email is not getting sent.. I want to test if the ajax connection is being made at all.. don't know how do it w/o something like xmlHttp.responseText

This is my jQuery ajax code for connecting to send-email jsp:

var dataToSend = "name=sName&email=sEmail&msg=sMsg;

View 2 Replies View Related

Declare Null Parameter Within Function Declaration?

Feb 13, 2009

Take a look at this example:

Code:

function foo(var1, var2=NULL){
if(var2 != NULL){
//do something
}

[Code]....

and in this scenario, var2 would have a NULL value

My question is: Is it possible to declare a null parameter within a function declaration in javascript? (as in the example)

I know this is possible with PHP, but i am having problems with this in Javascript.

View 2 Replies View Related

Declare Variables Once And Use Them In Multiple HTML Files?

Jan 7, 2011

I have been working on a few budget scripts that I can access from the web in using HTML. My problem is that when variable values change I need to change these values in all of the HTML files on the server. I know that there is a way to declare global variables in a single file and use those values in another file but I have not been able to find any information that tells me exactly how to do this. I have tried to put it together on my own using what little informaiton I have been able to find but have not been able to get this to work. Is there a more detailed referance that I can find somewhere or does anyone know what steps I need to take to make this happen?

View 13 Replies View Related

Declare Separate Callback Functions To Objects?

Mar 17, 2011

I have many forms on a page. When a user click on a new or upate link, releated forms shows up in a dialog box and i validate it .

What my problem is i after i validate the forms i want them to go to it's own callback. Every callback functions is different according to forms.

How can i set different callbacks to each process.

Code below isn't work exactly. It always alert "test1";

Code JavaScript:
// JavaScript Document
var process = function() {
this.url ="";

[Code].....

View 2 Replies View Related

JQuery :: How To Declare Global Variable (Nested Function)

Oct 20, 2010

I have a function which has a nested function in it. I need some variables in the first function to be available in the nested function. How am I supposed to declare a global variable in jquery?

View 4 Replies View Related

JQuery :: Declare Variable As Global To Move It From One Function To Another?

Jun 5, 2009

I want to declare variable as global to move it from one function to another. How I can do this in jquery?

View 2 Replies View Related

Multiple Array And Display - Declare A Variable Named Total With An Initial Value Of 0

Sep 17, 2010

I am looking for a push in the right direction for a few problems i am running into; my first problem is I have to create a script element that contains the function amountTotal which should return the sum of all the values in the amount array. There are no parameters for this function, and I have to add the following commands to it.

1. declare a variable named total with an initial value of 0

2. create a for loop thatloops through all of the values in the amount array, at each iteration of the loop, add the current value of the array item to the value of the total variable.

3. and after the for loop is completed, return the value of the total variable.

The amount array has already been created and populated in a list.js file, I had to first create a script element pointing to it.

This is what i had for my link to the list.js file and funtion :

I have my entire code written but i am trying to break it up and fix my problems 1 at a time: when i open the code, it does'nt display correctly ( which is another problem) but I ran the debugger and it says my total is undefined. ( this is in another section of my code), but I guess my function is wrong somewhere.

View 14 Replies View Related

Declare A Variable Inside A Function - Returns White Space - Not Variable Value

Aug 17, 2010

I am trying to declare a variable inside a function and use it later on in my code... but it just already returns white space... i.e. not variable value. I am setting it within this function:

function show_video1(){
document.getElementById('video1').style.display="block";
var video1Name = "Education World News (Part 1)";
document.getElementById('video2').style.display="none";
document.getElementById('video3').style.display="none";
document.getElementById('video4').style.display="none";
[Code]...

and trying to call it later on with this: <script type="text/javascript">document.write(video1Name)</script> It might be worth noting that each one of my 11 videos will hace a different name.

View 13 Replies View Related

JQuery :: Must Use "var" To Declare A Variable?

Feb 19, 2011

must use var to declare a variable or just type the variable only?example:

var myvar = this.val();
or
myvar = this.val();

What is the right to use?I tested both and it worked, but it may be that some of the two is the safest and most advisable to use.

View 6 Replies View Related

Show File Content When File Is Selected Using Input Type File

Sep 21, 2007

I have a <input type = file> button for uploading a file in my php page. As soon as i select a file from the button, i need the file data to be displayed so that i check whether the file selected has the correct data. How can i do this.

View 1 Replies View Related

Find A Pdf File Is Normal File Or Shared Review File?

Jan 4, 2010

My client will upload some pdf files in my php page.

I want to find a pdf file is normal file or shared review file. If it is shared review file then only i can allow to upload that file.

How can i find a pdf file is normal file or shared review file?

View 3 Replies View Related

Reading External Text File - Load The Content Of The File Into A Variable In Script

Jul 16, 2010

I'm writing a script and I've encountered a problem.. I have a txt file with many words, each word in a different line. For example: the file words.txt contains:

word1
word2
word3
word4
word5

I need to load the content of the file into a variable in my script. I prefer that all the words will be in the same variable with line breaks, but if you'll figure out a way to put it in an array, it's ok too. I really don't know how to do it, and I tried to google but didn't understand.. By the way, I don't want to change the txt file to js file, I need it to remain txt..

View 8 Replies View Related

Including A Javascript External File From The <body> Part Of An HTML File

Sep 26, 2007

I got an [object error] from IE 7.0.5730.11 when moving the <script
src="..." type="text/javascript" /tag from the <headpart to the
<bodysection of a HTML file.

Is not possibile to include Javascript code via <script src="..."
type="text/javascript" /from the <bodysection, instead from the
<headone? If yes, anyone has any idea of which the problem could be?
If not, how can I programmatically include a javascript external file
inside the <bodypart of a HTML file, for example, using Javascript
to some particular native functions?

View 1 Replies View Related

JQuery :: Check File Extension When User Sets It In The File Input?

Apr 20, 2010

is there a way to assign an event to a file input so that when a user selects a file to upload the event is triggered and i can check out the file extension? The reason why is simple, i want to perform different actions depending on the type of the file.

View 2 Replies View Related







Copyrights 2005-15 www.BigResource.com, All rights reserved