Trim Strings In Script With Variable Lengths?

Feb 23, 2010

how to trim strings in Javascript with variable lengths? For example:

My Option 1 (+$10.00)
Short Option (+$5.00)
Really long Option

I only want to trim off the (+$10.00) on My Option 1 and the (+$5.00) on Short Option. No trim necessary on Really long Option. When I'm done I want to be left with:

My Option 1
Short Option
Really long Option

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How Do I Trim Whitespace - LTRIM/RTRIM/TRIM?

Apr 23, 2007

Using Regular Expressions (JavaScript 1.2/JScript 4+) :

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

or for all versions (trims characters ASCII<32 not true
"whitespace"):

function LTrim(str) {
for (var k=0; k<str.length && str.charAt(k)<=" " ; k++) ;
return str.substring(k,str.length);
}
function RTrim(str) {
for (var j=str.length-1; j>=0 && str.charAt(j)<=" " ; j--) ;
return str.substring(0,j+1);
}
function Trim(str) {
return LTrim(RTrim(str));
}

http://msdn.microsoft.com/library/d...363906a7353.asp

http://docs.sun.com/source/816-6408-10/regexp.htm

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Strings - Get The Coordinates From A Variable In The URL

Oct 2, 2011

I have this code for HMTL5 Canvas, however this is a JavaScript directed question not a Canvas question.

<script type="text/javascript">
var c=document.getElementById("myCanvas");
var cxt=c.getContext("2d");
cxt.moveTo(0,400);
cxt.lineTo(50,a);
cxt.lineTo(100,b);
cxt.lineTo(150,390);
[Code]...

That will draw a line graph, however I want to get the coordinates from a variable in the URL. So it may be example.com/a=500&b=600 . How would I retrieve these two variables and then insert in to they're respective places?

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JQuery :: Dynamic JSON Variable Strings?

Apr 18, 2010

I have variables coming in from JSON files via AJAX calls. Each file will have 3 variables for different background colours. Depending on which button is clicked the background will change colour to the value specified in the JSON file.

[Code]...

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JQuery :: Different Lengths By IE And Ff?

Jan 7, 2010

I have a dropdown which diplays a companyname with 4 hidden inputs.these hidden input values are set in text boxes on selected indexchange of dropdown.like this

var sourcedropdown = $
e.target
.parent

[code]....

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JQuery :: Dynamically Declaring Functions - 'array' Variable Contains Strings Representing The Id's Of Different Elements

Oct 12, 2010

Demonstration code:

The 'array' variable contains strings representing the id's of different elements. If the for loop above were to finish iterating, would all the links in all three elements call the click function (that displays an alert message), or would only the last element ("element3") have the click function? For me, the latter seems to be the case unless if I'm doing something wrong, but I would like clarifications and, if possible, alternative solutions as to how I can achieve the former result.

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Sep 25, 2007

I've been learning javascript for about a week and I'm really struggling right now. This is a homework assignment to help in learning loops and arrays.

What I want to happen is when a form button is hit it will replace the array from the one previous instead of just adding to it. Hopefully that makes sense. What do I need to do? here's my code....

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Trim Function

Nov 29, 2005

Does java script provides inbuilt trimming function, if not then what
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How Do We Trim A Part Of URL?

Feb 26, 2006

How do we trim out or remove a part of a URL or path?

eg. http://www.mywebsite/folder/somefile.htm ----I want to trim
http://www.mywebsite/folder/ so All I have left is the file name.

<script language="JavaScript">

var pathtotrim = location.href;
document.write (pathtotrim);

</script>

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Trim Function In JS?

May 31, 2009

Is there really no string trim function in JS?

Code:

function trim(s)
{
return rtrim(ltrim(s));

[code].....

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Trim String In Javascript

Jul 23, 2005

for all your javascript trimming needs...

function trim(inputString) {
if (typeof inputString != "string") return inputString;
return inputString
//clear leading spaces and empty lines
.replace(/^(s|
|
)*((.|
|
)*?)(s|
|
)*$/g,"$2")

//take consecutive spaces down to one
.replace(/(s(?!(
|
))(?=s))+/g,"")

//take consecutive lines breaks down to one
.replace(/(
|
)+/g,"

")

//remove spacing at the beginning of a line
.replace(/(
|
)s/g,"$1")

//remove spacing at the end of a line
.replace(/s(
|
)/g,"$1");
}

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Trim Non-breaking Spaces?

Oct 2, 2009

I'm working with SageCRM. When SageCRM outputs the company address, I kid you not, it outputs the value and then a crap ton of HTML non-breaking spaces, a break tag and then repeat for the other address lines.My client added a button to the page via the customization function that links over to MapQuest. But, all those non-breaking spaces mess up the URL.I'm trying to fix it, but I'm having some trouble and thought I'd throw it out to you all.

Code:
// Ninja'd this from somewhere to trim whitespace.
function trim(stringToTrim) {

[code]....

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May 8, 2009

I have the following script that converts line breaks from plain text into HTML formatted paragraphs. It takes plain text from one text area field and outputs the new formatted text into another text area field.

function convertText(){
var noBreaks = document.getElementById("oldText").value;
noBreaks = noBreaks.replace(/

[code]....

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Aug 21, 2009

I have a form in my homepage which takes some values. In that, a text box takes multiple values seperated by spaces. I have allowed only alphanumeric characters in that with the following code.

[Code]...

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This works fine in FireFox:

$("#listname").val().trim()

But in safari it errors: $("#listname").val().trim() while this does work, $("#listname").val()

Why is that?

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Simple Trim Function Does Not Work

Nov 18, 2010

I am trying to make a simple trim function but this doesnt works.
function tr(input){
var i;
var str;
for(i=0; i<input.length-1; i++){
if(text.charAt(i)==" "){
str+=""+text.charAt(i)
} return str
}}

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Jun 29, 2011

My trim() function seems to halt JavaScript execution in Chrome.

Code:

function trim(s) {
s = s.replace(/(^s*)|(s*$)/gi,"");
s = s.replace(/[ ]{2,}/gi," ");

[code]...

It works in IE and firefox.. no it doesn't.

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Dec 7, 2010

Is there a way of trimming the value before checking it so that a space for example would still be NULL "".

Code:
if(document.sendmail.emailsubject.value == '')
{
msg += "Subject cannot be left blank.
";
error = true;
}

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JavaScript Trim() And Normalize-space() Functions

Sep 29, 2005

Just wanted to share two handy RegEx expressions to strips leading and
trailing white-space from a string, and to replace all repeated spaces,
newlines and tabs with a single space.

* JavaScript example:

String.prototype.trim = function() {
// Strip leading and trailing white-space
return this.replace(/^s*|s*$/g, "");
}

String.prototype.normalize_space = function() {
// Replace repeated spaces, newlines and tabs with a single space
return this.replace(/^s*|s(?=s)|s*$/g, "");
}

" one two three
".trim(); // --> "one two three"
" one two three
".normalize_space(); // --> "one two three"

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JQuery :: Trim Content To Perfectly Fit A Container?

Aug 2, 2010

Picture a table where each cell row is 50px tall, with 3 to 5 columns of varying length. For example: thumbnail, name, description, price, options. The thumbnail will always be the same size, but for efficiency of space, nothing else is.

My question is one of overflow. With long descriptions, overflow:hidden will keep things clean. But the most aesthetic presentation would be todynamically truncate the description with ellipses (...) somewhere just before the text runs off the end of the cell (like the ubiquitous [More...] feature, but first filling the cell as much as possible).

This is a typographically desirable feature, and I can come pretty close with php

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Javascript String Doesn't Have Trim Method ?

Jun 6, 2007

I was trying:

Code:

<script>
function testtrim(value) {
alert(value.trim());
}
testtrim("Alex ");
</script>

The javascript don't work, my firebugs says:[value.trim is not a function] how to simulate an trim function?

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Regular Expression :: Trim Spaces To Single Space

Jun 20, 2006

If there is a unlimit long textfield, the user can type free text. It means that the client can type

I like eating very much.

How can I using regular expression to trim the spaces to single space?

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JQuery :: Trim The Begining Of The Text (00 Or +) User Is Submitting?

Dec 8, 2011

I use this script for my online price search facility:

// JavaScript Document
jQuery.noConflict();
jQuery(document).ready(function () {

[code]....

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May 3, 2011

is there any way to trim the filed value before using jquery validate plugin [URL]../Plugins/Validation/Validator.

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Feb 3, 2006

I'm having difficulties arithmetically manipulating form element values.

I've entered data into the form, and I fetch them using a js, as:

p7Left = Number(document.form1.elements["p7_left"].value);
p7Right = Number(document.form1.elements["p7_right"].value);
...
...
scoreLeft = Number(document.form1.elements["left_score"].value);
scoreRight = Number(document.form1.elements["right_score"].value);

Then I add these as follows:

scoreLeft = Number(scoreLeft + p&Left + ...... +);

This does what I want; without the operator 'Number' I get a concatination
of the various variables (as expected). Is there some way of globally
defining all variables as numbers instead of strings?

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Strings As Arrays

Mar 6, 2007

Safari and FF seem to allow this:

var wiggy = "ABCD";

ch = wiggy[2]; // ch will contain the character 'C'

however my JS book seems to insist that I do this:

ch = wiggy.charAt(2);

and indeed doesn't appear to mention the first method at all.

Since for my particular purpose I want to treat the string as an array
of single characters, I prefer the first method rather than the second.
Is there any reason not to pursue this approach?

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