Modify String - Lowercase Letters And Uppercase Letters In A String And Then Swap Them
Jan 19, 2010
I am currently trying to build a new function in javascript that is supposed to handle a string of text. The idea is that it should find the lowercase letters and uppercase letters in a string and then swap them.
Meaning all lowercase letter becomes uppercase letter and vice versa.
So i am just asking if someone could point me in the right direction or give some tips. I've currently been reading about the toUpperCase(); and toLowerCase(); functions and i am fairly confident i know how to use them for switching, however i still need a way to find the lower , upper character in the string so i later can switch them.
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Jun 23, 2011
I have a document list of several hundred drug names where some are lower case and some are all caps. I want to bold only the lower case drug names but don't want to do it manually. Is there a java script that I can apply where it automatically does that for me?
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Sep 4, 2010
I'm new to Jquery, and i was wondering how i could rename a string like "hat" to "het" by replacing "a" with "e"in my labels..
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Mar 2, 2011
I'm trying to make a script which will check if the string which the user sent from a form contains ONLY letters. The problem is if the user entered something like this "25 years old" it allow that to be submitted. It only blocks submissions of the form if the user submits NO letters like this "12345". I want it to block submissions if at least one character isn't a letter. Here's my code:
var message = document.myform.formtest.value;
var allowed = /[A-z+]/;
if(!allowed.test(message)) {
alert("The field only allows letters (a-z).");
return false;
}
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May 9, 2011
I'm looking to do two things: the first is to move elements of an array to the next index using a function. I have managed to do this like so:
var letters = ['h','i','j','k'];
function moveElements(anArray){
var newArray = anArray;
[code]....
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Nov 30, 2011
Is innerHTML written with this combination of upper and lowercase letters, or is it written another way? I assume if I write it with the wrong combination in the code ajax won't work.
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Jan 12, 2011
I want to match 5 uppercase letters followed by a dash, followed by 5 more uppercase letters. I tested this:
Code:
<script type="text/javascript">
var str="^This is a test. PIYRW-NKJDQ";
var patt1=/[A-Z]{5}-[A-Z]{5}/g;
document.write(str.match(patt1));
</script>
and if I change the last part of str to "XXPIYRWV-XNKJDQ" it matches "IYRWV-XNKJD" when I want it to return null. What am I doing wrong?
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Jun 28, 2010
I wanted to try creating a basic expression first. I want someone to enter a string that is 2 - 20 characters long and only has letters. This is what I use so far, and it doesn't work, nothing happens at all when I run it.
Code:
// Check for a valid name.
var namePattern = new RegExp("/^[a-zA-Z]{2,20}$/");
if (namePattern.test(name))
{
window.alert("Invalid");
}
name comes from a input box I display on screen. Also, I would like to update the expression so that there can be one space in the string, but it cannot be at the beginning or end. So this string is like a persons name. Bob is OK, Bob Smith is also OK. Edit: Actually, it is doing something but its always coming back invalid.
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Jul 13, 2011
i want a value search(find) to database(table), this requires an ajax call to a server page? if want show result search live(online) and search letters to letters (transliteration), how is it?
[Code]...
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Jun 24, 2007
I post a little function which will help you to convert lowerCase to UpperCase while you are typing.
Code:
<script language="javascript" type="text/javascript">
function pulsar(e,obj) {
tecla = (document.all) ? e.keyCode : e.which;
//alert(tecla);
if (tecla!="8" && tecla!="0"){
obj.value += String.fromCharCode(tecla).toUpperCase();
return false;
}else{
return true;
}
}
</script>
<input type="text" onkeypress="return pulsar(event,this)" />
If you could help me to improve this function your advice is very welcome.....
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Aug 18, 2010
Ive just started to learn JavaScript, and I have trouble to write JavaScript code which checks a string to contain at minimum one uppercase letter, one lowercase letter one number and one special character with no white space allowed.
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Jan 26, 2010
I would like to sort the items regardless of uppercase/lowercase after moving them to another listbox. Here is my code, and I cannot figure out what is wrong with it.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "[URL]">
<html xmlns="[URL]" >
<head>
<title>Untitled Page</title>
<script language="javascript" type="text/javascript">
function MoveItem(unselectedLst, selectedLst) { .....
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Sep 12, 2007
I'm using a script to convert record tables in an HTML file to be client-side sortable by associating title columns with sort events.
It works fine when sorting by last name, except for those which start with a lowercase letter (van, de, etc.). I understand ASCII considers uppercase before lowercase letters, so is there an easy fix to this?
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Sep 7, 2010
here i m developing one text area along with bold/italic/uppercase/lowercase options using java script. i m getting bold and italic but i m not getting uppercase letters and lower case letters.
my code:function upper() {
document.getElementById("text").toUpperCase();
}
function lower() {
dcument.getElementById("text").toLowerCase();}
[Code]...
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Jul 30, 2010
String.prototype.trim = function(){
return this.replace(/^s+|s+$/g, "");
}
[code]....
It's possible with numbers:
var myNum = 10;
myNum++;
alert(myNum); //11
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Mar 21, 2010
I'm receiving html into a variable from an external source and I'm trying to modify the id of one of the inputs within the html but when I change it, the original html isn't getting updated. an example of what I'm trying to do is :
var sTemp = "<div><input type='hidden' name='test' id='test' /></div>";
$("#test", sTemp).attr("id","newid");
after changing the attribute, sTemp still contains the original code
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Sep 7, 2009
how to add,modify or remove attribute from a json string?
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Jul 23, 2005
I need to use javascript's graphics API to draw the letters of
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and use drawline() to draw them, but I am hoping someone out
there might have a better suggestion. The user will click a spot
on the canvas, and the script will draw one of the letters at
that spot.
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Jun 8, 2011
I am trying to make a JavaScript chat-bot
I was using this to answer a month questions and it worked fine for what is the month after
DatesA=new Array("january,February","february,March","march,April","april,May","may,June","june,July","july,August","august,September","september,October","october,November","november,December","december,January");
[Code]....
The bot correctly answers for x y and z . It then answers V for all other letters, digits and short words
What is the letter before cow
answer: V
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Jul 27, 2011
I'm working on a site, which will include a registration form for users that wish to register. In this registration form I would like it to have an AJAX based effect, such that when the user types each letter out for his username in the field, his username will appear (letter upon letter) itself.I've done my research, but had little luck. I'm sure it is possible as I've seen it before in a slightly different manner.
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Nov 24, 2002
Very simple, but useful - I just came up with this in answer to a post:
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
<head>
<title>Letters ONLY</title>
<script type="text/javascript">
<!--
function alpha(e) {
var k;
document.all ? k = e.keyCode : k = e.which;
return ((k > 64 && k < 91) || (k > 96 && k < 123) || k == 8);
}
// -->
</script>
</head>
<body>
<div>
<form id="example" action="javascript://">
<input type="text" onkeypress="return alpha(event)" />
</form>
</div>
</body>
</html>
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Jun 14, 2010
I need a function like reverseChars(str_arg) � this will return a string containing the characters of the string str_arg in reverse order. For example, if reverseChars("javascript") is called, the return value will be "tpircsavaj".
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Jul 17, 2004
How can i make my javascript alert message in bold letters
alert("my message");
How can i display " my message" in different colors,bold etc..
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Jul 3, 2007
Is there a way to use javascript to count all the letter "d" in a specific table? I have a table of information on my page and I need some way of counting specific letters in the information.
So the out put would be something like d=2
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Jul 14, 2010
I have this great piece of code that only allows letters in a form, however, it waits for you type the number and then gives it a null value (i think). If I wanted it to totally block any number keys (etc), how would I change it? AND, is there a way I could do this to only allow numbers?
function validLetters(f)
This code below totally blocks letters and signs! How would I apply that to the top code?
function validNumbers(myfield, e, dec)
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Aug 8, 2009
Random, but probably easy, question: Is there a jQuery function that, given a string, can detect that it's in all capital letters?
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