Can't figure out why the pattern will match a period but not a square bracket.For example, it will match "See Jack run." but not "See [Jack] run.". Just ignores the brackets.
Code:
var title = note_title.value;
// validate periods and brackets
[code]....
I'm hoping that someone can help me with a question I have about javascript syntax.
I got an html page that uploads an image and some text field to a database.
What I'd like to do is modify the content of one of the textfields prior to it being submitted to the database. Specifically, I need to append the contents of one of the fields to another.
The problem that I've encountered is that the textfield name contains square brackets , ‘extra_fields[Price]'
I've identified the square brackets as being the problem by changing the textfield's name to one that doesn't contain square brackets ,extra_fieldPrice for example and the script works fine.
Unfortunately, in the real world application of this page, I can't change the textfield name.
The specific part of the html page that's giving me problems is:
While trying to get a selector to work with ids that include square brackets, I searched the forum and found that I needed to escape the brackets with '\'. However, while this works with my fiddle: can't get the exact same selector to work within my page in either FF or Safari. I've triple-checked the id and it is correct; I know that jQuery is working on the page because changing the selector to$('.nameinput') gives the expected results. can't change the id because I'm working within an existing application; I know I could add a class to the input and use that as the selector instead. I'd prefer not to and would just like to figure out why this isn't working.
View 1 Replies View RelatedI do undersand the basic notation of jQuery selectors, but I don't understand what the [0] means in the following code snipet:
$("body").append(
$([
overlay = $('<div id="lbOverlay" />')[0],
[code]....
how do I get the post data from html in jQuery which contains square brackets?
[code]........
I have the folowing string:
"url(http://www.somelocation/anaywhere/image.jpg)" stored in the variable
str_image and I want to extract the string between the brackets. I have:
ar_match=str_image.match("url([.]*)");
it returns
0=url
1=
How do I get this to work?
for the character classes [ ], if i want to match ,.[] i cannot put them into the square brackets so how to deal with that? what if the characters are . or ! or ." (<-- combined) it fails if the regexp is [.!(.")] which will treat ( as one of the element. also the book javascript: the definitive guide says that (?=p) requires that the following characters match the pattern p, but do not include those characters in the match. However, the browser failed to figure this out (IE8) i.e. "asd:ert".match(/(?=:)w/) returns null
View 9 Replies View RelatedI've been battling with this for a couple of hours now. I bet the answer is simple.
I want to take "text (just the text in here) more text" and end up with "just the text in here" No brackets
Basically I'm trying to strip a "url(address here)"
My regex literal so far is /[^(].*[^)]/g
This would work say for "(hello there)" -> "hello there", but fails for "text(hello there)text"
Any suggestions on how the javascript below should be changed so it will work with checkboxes that have brackets in the name? (I'm using foreach in php, and can't seem to get the php to work/work correctly without using them.)
View 3 Replies View RelatedWhen the return value of a function is another function like:
Code:
The normal method I've seen to invoke the returned function is:
Code:
In, JavaScript closure for dummies, in the 6th example the returned function is invoked using double brackets like:
Code:
This is working perfectly in firefox. This is the 1st time I'm seeing a function call like this.
Does this work in all browsers?
In IE (tested 7 and 8), $('td[colspan]') seems to match every single td. In Firefox and Safari, though, it (correctly) returns only those which do have a colspan attribute. Here is a simple test:
[Code]...
I have a form with two fields: shape and color. where people select a shape an image of the shape appears, and a default color image appears.When they select a color, it changes the color image. But if they go back and change the shape, I don't want it to turn the color back into the default image. But I don't know how to do this script.Here's the function I have, but I don't know how to write it:
function changecolor(picName,imgName)
{
var idx = filepath.pic4
if (idx = "/images/leaf_shapes/entire/transparent1.gif")
[code]....
It's to allow users to create thier own descriptions, and the input is displayed automatically using innerHTML. This part of the function checks if the HTML tags are allowed through, I've got this far...
allowedHTML=new Array("<br>","<b>","</b>","<i>","</i>")
HTMLcount=allowedHTML.length
function formcheck() {
lettercount=document.formname.email.value.length
HTMLcheck=""
for(i=0;i<ltrcnt;i++){
if(document.prsnlsd.email.value.charAt(i)=="<"){openat=i}
if(document.prsnlsd.email.value.charAt(i)==">"){closeat=i+1
for(j=openat;j<closeat;j++){
HTMLcheck+=(document.formname.email.value.charAt(j))}
for(k=0;k<HTMLcount;k++){
if(HTMLcheck==allowedHTML[k]) return; else alert()}}}}}
I want it to trigger if one of the "allowedHTML" isn't found by the time it's finished going through the array.
I want to set predefined URLs and display some HTML when the URLs are loaded on the page where the code is. Let me give you an example implementation.With forum software, you get one template file that makes up the view forum page. I want to display a piece of code ONLY when someone visits a particular forum. So, I want them to see it when they visit:
[URL]
Not when they visit:
[URL]
how to make a function that changes a specific image on a page when the user chooses from a menu, but only if the src name matches "transparent.gif"
With numerous other scripts, I've cornered myself into this as the only solution for now to what I'm trying to do. But the script is not working. Here it is:
Code:
<script>
function changecolor(picName,imgName)
{
var leafcolor = document.getElementById('pic4').src;
[Code].....
I need to validate three textboxes and it will validate for numbers. How should I change my code to validate three textboxes?
Code:
Code:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
[code]....
I need to use Javascript to validate 3 textboxes, whereby the users can only key in numbers (because they are phone numbers related fields). If any of the textbox is empty, display an alert message to show which textbox is empty. I do not want to show many alert messages to show that, for example, text1 and text2 are empty, it will show two alert messages. I would need to show one "summarized" alert message instead.Next, check if the textbox matches the pattern (which is to check if it has the skeleton of a phone number). If it is, show an alert message that it is alright. Else, show that it does not match.
write JavaScript program for matching of parenthesis(opening and closing brackets) in a string
View 6 Replies View Relatedis there any way one can test if an element matches a jQuery selector? I'm not trying to locate elements, just test for match.
More specifically, when using event delegation and a common callback function for multiple events, is there a way to check the event's currentTarget against a selector?
In the following example, how can I check if the currentTarget is the LI node with class "item2"?
<!DOCTYPE html>
<html>
<head>
<script src="http://code.jquery.com/jquery-latest.min.js"></script>
</head>
[Code]....
I was wondering if there is a "selector construct" that matches an element having more than one child. So I'm looking for a solution that doesn't need
an if statement such as;
if($('ul').children().size()>1)
{
//do this
}
[Code]....
But I'm looking for a selector that already looks for these conditions. Kind of like how :has() works but then a check for more than one child.
How can I go about making it so JavaScript will not let a form submit unless a number entered into a field matches a pre-specified number?
View 3 Replies View RelatedIt is validating every thing expect YEAR. It only matches first 2 digits for year instead of 4. I want it to be 4 digits for a year. It returns true if I put 12/25/19.I want it to return false for the above date.
[Code]...
I have the following code:
function createSquare(event) {
var x = parseInt(event.clientX);
var y = parseInt(event.clientY);[code].....
This shows me a square and a select but the select isn't populated with anything.i do have a form later on down the page. The form code is (which I try and pull in the info from the select in the form in the select in the createSquare:
<form action="" name="tag" method="post">
<input type="hidden" name="picture_id" value="4">
<select name="tagged_person" id="tagged_person">[code]....
I'm trying to determine if the id of an element matches a String that has multiple parts.
Code:
function platformChange (this)
{
thisID = this.id;
[code]....
The value of this.id is "platform_SWFUpload_0_0" but the result of thisID.match (pattern) is null.
I know very little about javascript, but was wondering if something like this can be done?
Would it be possible (with mootools or jquery) to have homepage that will rotate its home page content forwards and backwards based on either triangle or square? ie, you can rotate through 3, 4, etch home pages?
Sort of like a slider, but it rotates off a center axis of the triangle or square?
I cannot manage to do a square root operation. I am using the coding:
var a = Math.sqrt(b);
getting an empty square character instead of a space.Looks ok printed by php.It seems to happen after I use rubout or delete and then type a space in my JS editor; when the edited text is displayed via ajax in a JS tooltip, I see an empty square.Hundreds of articles have this problem so I need a way to remove them. Iv'e tried various character replacements but can't seem to determine what the square character is (char code).
View 2 Replies View Related