JavaScript - How To Initilise A Variable With A String Of Identical Characters

Here is the code i am trying.

Code:

var str="اسدف";
patt=/[\u0600-\u06FF\u0750-\u077F]/;
result=patt.test(str);
document.write("<br />Returned value: " + result);
</script>

This should return true, as the string in the str variable is indeed Arabic character. But it returns false. Need some help here on this..

Thanks in Advance

Hi to all!

I have a jquery script that checks in the database if a user exists and if true it returns a big red X next to the field, I now want to implement a statement to only alow nmbers (0-9) letters (a-z) and (_) (-)

So the only help i need is to construct a if statement similar to the one below, if it is possible, and if not, any advice on howto.

Code:

           if(any thing else but 0-9, a-z _ -){
	$('#username').css('border', '3px #C33 solid');	
	$('#tick').hide();
	$('#cross').fadeIn();
	}

Full script:
Code:

<script>
$(document).ready(function(){
$('#username').keyup(username_check);
});
	
function username_check(){	
var username = $('#username').val();
if(username == \"\" || username.length < 4){
$('#username').css('border', '3px #CCC solid');
$('#tick').hide();
}
else{

jQuery.ajax({
   type: \"POST\",
   url: \"general/check.php\",
   data: 'username='+ username,
   cache: false,
   success: function(response){
if(username == \"admin\"){
	$('#username').css('border', '3px #C33 solid');	
	$('#tick').hide();
	$('#cross').fadeIn();
	}
else if(response == 1){
	$('#username').css('border', '3px #C33 solid');	
	$('#tick').hide();
	$('#cross').fadeIn();
	}else{
	$('#username').css('border', '3px #090 solid');
	$('#cross').hide();
	$('#tick').fadeIn();

	     }

}
});
}



}

</script>

Thank you in advance.

I am making a function where I need to know whether the input is a variable with a string value

var foo = "bar";
Function(foo)

or if it is a string, wherein it would be the name of an object

object = {
ThingsInside: function(){code}
}

Function('object')

Code:

function Function (object){
if(object is a string){
do this
}
else if (object is a variable with a string value){
do this
}
else{
do something else
}

Because they would be both passed by value, I'm not sure how or if there is a way to tell as they would both just appear as string inputs, right?

Say I had a bunch of elements with id names "id1", "id2". "id3" etc. Then say I had a function that adds a click handler such that when you click these elements it gets the id name with this.attributes[1].nodeValue;. Then say I had a bunch of arrays with the same names as the ids var id1 = ["data", false, 45]; var id2 = ["otherdata", true, 15]; var id3 = ["otherotherdata", null, 65];. How would I set a variable "currentid" to the array with the corresponding name as the id name? I guess the underlying question is, how would I convert a string to a variable name?

How can I use a string to select a variable?

E.g.
Code:

function load_menu( menu ) {
	//Availible menus
	var login = Array('Login','Register','Recovery');
	var settings = Array('Profile','Account','something');

	//Menu container ID's
	var cons = Array('menuitem1','menuitem2','menuitem3');
	
	for ( var i = 0; i < cons.length; i++ ) {
		document.getElementById(cons[i]).innerHTML =  menu[i] ;
		alert(menu[i]);
	}
}

"menu" is "login".
menu[i] should reference the "login" variable and then put one of the values for the login variable array in its place.

If you understand what I mean?
So if menu is settings then the settings array would be used.

Here is my code
Code:

function copy_grid(from,to)
{
	var copy_from = from +"_24_product_cost"; // in this instance from = grid1_White
	var copy_to = to;
	var tmp_field = getElementById(copy_from).value; // ERROR: getElementById is not defined
}

document.product.grid1_White_24_product_cost.value // works as expected
but I wanted this to be dynamic.

Any ideas?

Hi all,

I am having a hard time on this, can you help pls?
I have this code?

$("select[name=objeto"+contcheck+"]").change(function(){
$("select[name=titulo"+contcheck+"]").html('<option value="0">Carregando...</option>');

where contcheck is a counter, so a number.
It does not work at all, any help how to concatenate string and variable like this:
objeto1
objeto2
objeto3 .... and so on.

Thx.

Hi All,

Am new to Javascript but fluent in C++ and other languages, I have a query, i made a global variable to hold string information, can the value of this string be assigned to a form input field value?

I mean in the 'default value sense' I am just wondering if there is any syntax to accomplish this.

EG in my javascript i have the string nameVal; It is a global variable, i would like to know if it is poosible access its value for use in the line below shown with italics, or is it basically always a case of 'type the value in manually yourself' and then rely on events functions to update the field thereafter?

Code:

Name: <br><input type = "text" name = "nameField" size = "50" value = my string val here onChange ="this.value=storeVal(this.value, '0')"></input></br>

I'm sure it's just a syntax problem. You can ignore most of this function because most of it works. The part I'm asking about is the "coordinates" variable 4th line from the bottom. The "office3" variable is a dynamically populated office number. I have the office numbers all defined as variables somewhere else but since I can't just name the variables as numbers I had to put a $ in front of them. Basically I'm trying to call the office number variable, $1656 for example. So "coordinates" is meant to be equal to "$+the chosen office number".

Problem is coordinates is coming up as literally "$1656" instead of the value of $1656. Sorry if that was confusing, can anyone point out the problem?

function display(name3,office3,officePH3,mobile3,email3)
{
var instruct="<span class='style4'><strong>"+"LOOK FOR THE FLASHING COMPASS ROSE ON THE MAP"+"</strong></span>"+"<br /><br />"+"<span class='style4'><strong>"+"HOVER ON A PRINTER TO VIEW ITS INFO OR CLICK TO MAP IT"+"</strong></span>"
var info_output="NAME: "+(name3)+"<br /><br />"+"OFFICE: "+(office3)+"<br /><br />"+"DESK PHONE: "+(officePH3)+"<br /><br />"+"MOBILE: "+(mobile3)+"<br /><br />"+"EMAIL: "+"<a href=mailto:"+(email3)+">"+(email3)+"</a>"+"<br /><br />"+(instruct)

document.getElementById("info").style.visibility="visible";
info_text.innerHTML=info_output
document.getElementById('iframe_container').style.overflow='auto'
document.getElementById('viewer').src=('Location_Files/')+(office3)+('.htm')
var coordinates='$'+(office3)

document.getElementById('compass_rose').style.top=('200')
document.getElementById('compass_rose').style.left=('200')
document.write(coordinates)
}

I am just starting to learn javascript and was hoping someone might be able to answer my question:

var months = "April Showers";

document.write('<p><img src="ad11.jpg");
document.write(" alt=");
document.write(months);
document.write(">");
document.write(months);

How come when I display my output to a browser without the presence of the
ad11.jpg file, only the first word (April) in the text string "April Showers" is dispayed where the .jpg file is suppose to be...but the last line displays the entire text string.

Is this possible?

Code:

String.prototype.trim = function(){
	return this.replace(/^\s+|\s+$/g, "");
}

var myStr = "  Hi what's up?  ";
myStr.trim();
alert("{" + myStr + "}"); //will result in the original string, not the trimmed version

It's possible with numbers:

Code:

var myNum = 10;
myNum++;
alert(myNum); //11

Hi,

I have a javascript program that currently takes the contents of a *.txt file and converts it to a string-type variable using a hidden iframe.

For my pruposes it would be much nicer to read a *.csv file instead, however the method I'm using creates the "open/save file" pop-up window.

All files are client-side and in the same folder on one computer; this is NOT server-side or internet-based. It is simply javascript used in an HTA file as programming code. The *.csv does not need to be edited, just read.

I need to know how to convert the text of this *.csv file into a string variable. I have heard of using "xmlHTTPRequest (AJAX)" but am not familiar with how to use this. Any advice or code would be greatly appreciated.

Hey, I'm looking for a way to get a variable from a parent window in a child window. I'm aware that you can write the variable to a hidden field and then get the field's value in the child window, but I'm looking for a cleaner (all JS preferable) way of doing this.

Something like this, but I believe this is an out-dated solution:
Code:

var str = window.opener.str;
alert(str);

Any solutions?

I would like to somehow get both of these identical slideshow scripts working at the same time. Any help would be much appreciated!


Code:

<!-- dress -->
<div class= dress>
<div style="position:absolute; background-color:transparent; border-color: #000000; border:0px solid ; top: 443px; left: 346px; width:397px; height:255px;">
<script language="JavaScript1.2">
var variableslide=new Array()
 
//variableslide[x]=["", "", ""]
 
variableslide[0]=['dress/1.png', '', '']
variableslide[1]=['dress/2.png', '', '']
variableslide[2]=['dress/3.png', '', '']
 
//configure the below 3 variables to set the dimension/background color of the slideshow
 
var slidewidth='395px' //set to width of LARGEST image in your slideshow
var slideheight='255px' //set to height of LARGEST iamge in your slideshow, plus any text description
var slidebgcolor='transparent'
 
//configure the below variable to determine the delay between image rotations (in miliseconds)
var slidedelay=200
 
////Do not edit pass this line////////////////
 
var ie=document.all
var dom=document.getElementById
 
for (i=0;i<variableslide.length;i++){
var cacheimage=new Image()
cacheimage.src=variableslide[i][0]
}
 
var currentslide=0
 
function rotateimages(){
contentcontainer='<center>'
if (variableslide[currentslide][1]!="")
contentcontainer+='<a href="'+variableslide[currentslide][1]+'">'
contentcontainer+='<img src="'+variableslide[currentslide][0]+'" border="0" vspace="3">'
if (variableslide[currentslide][1]!="")
contentcontainer+='</a>'
contentcontainer+='</center>'
if (variableslide[currentslide][2]!="")
contentcontainer+=variableslide[currentslide][2]
 
if (document.layers){
crossrotateobj.document.write(contentcontainer)
crossrotateobj.document.close()
}
else if (ie||dom)
crossrotateobj.innerHTML=contentcontainer
if (currentslide==variableslide.length-1) currentslide=0
else currentslide++
setTimeout("rotateimages()",slidedelay)
}
 
if (ie||dom)
document.write('<div id="slidedom" style="width:'+slidewidth+';height:'+slideheight+'; background-color:'+slidebgcolor+'"></div>')
 
function start_slider(){
crossrotateobj=dom? document.getElementById("slidedom") : ie? document.all.slidedom : document.slidensmain.document.slidenssub
if (document.layers)
document.slidensmain.visibility="show"
rotateimages()
}
 
if (ie||dom)
start_slider()
else if (document.layers)
window.onload=start_slider
</script>
</div>
<!-- end dress -->
 
<!-- hair -->
<div class="hair">
<div style="position:absolute; background-color:transparent; border: 0px solid; border-color: #000000; left:436px; top:105px; width:227px; height:227px;">
<script language="JavaScript1.2">
 
var variableslide=new Array()
 
//variableslide[x]=["", "", ""]
 
variableslide[0]=['hair/1.png', '', '']
variableslide[1]=['hair/2.png', '', '']
variableslide[2]=['hair/3.png', '', '']
 
//configure the below 3 variables to set the dimension/background color of the slideshow
 
var slidewidth='227px' //set to width of LARGEST image in your slideshow
var slideheight='227px' //set to height of LARGEST iamge in your slideshow, plus any text description
var slidebgcolor='transparent'
 
//configure the below variable to determine the delay between image rotations (in miliseconds)
var slidedelay=100
 
////Do not edit pass this line////////////////
 
var ie=document.all
var dom=document.getElementById
 
for (i=0;i<variableslide.length;i++){
var cacheimage=new Image()
cacheimage.src=variableslide[i][0]
}
 
var currentslide=0
 
function rotateimages(){
contentcontainer='<center>'
if (variableslide[currentslide][1]!="")
contentcontainer+='<a href="'+variableslide[currentslide][1]+'">'
contentcontainer+='<img src="'+variableslide[currentslide][0]+'" border="0" vspace="3">'
if (variableslide[currentslide][1]!="")
contentcontainer+='</a>'
contentcontainer+='</center>'
if (variableslide[currentslide][2]!="")
contentcontainer+=variableslide[currentslide][2]
 
if (document.layers){
crossrotateobj.document.write(contentcontainer)
crossrotateobj.document.close()
}
else if (ie||dom)
crossrotateobj.innerHTML=contentcontainer
if (currentslide==variableslide.length-1) currentslide=0
else currentslide++
setTimeout("rotateimages()",slidedelay)
}
 
if (ie||dom)
document.write('<div id="slidedom" style="width:'+slidewidth+';height:'+slideheight+'; background-color:'+slidebgcolor+'"></div>')
 
function start_slider(){
crossrotateobj=dom? document.getElementById("slidedom") : ie? document.all.slidedom : document.slidensmain.document.slidenssub
if (document.layers)
document.slidensmain.visibility="show"
rotateimages()
}
 
if (ie||dom)
start_slider()
else if (document.layers)
window.onload=start_slider
</script>
 
</div>
<!-- end hair -->