|
JavaScript - Help,make Validation Without Regex
Guys can u help how to make code 'letters only' without regex?
And how to make simple captcha with the output like this => FP715,but still regex isnt allowed. Thank you Similar TutorialsHello I need some help with validating the password strength of my form. I am actually looking for a regular expression that could force the users to have at least 2 of the following: 1. Upper and lower case. 2. Numbers 3. Symbols. Thanks in advance for any help Hi all, First... this isn't homework... Now, I'm trying to make a live Regular Expression evaluator and I thought it would be really simple, but it's not working. Here's the JS I wrote..... Code: <html>
<head>
<style type="text/css">
body {
background-color:#ddeeff;
}
textarea#inp1,
textarea#inp2,
textarea#out1 {
margin:0 25%;
margin-bottom:1%;
border:0;
padding:0;
width:50%;
height:100px;
border: 1px solid #000000;
}
p {
margin:0 25%;
}
</style>
<script type="text/javascript">
function test() {
var inp1 = document.getElementById('inp1'); /* regex in here */
var inp2 = document.getElementById('inp2'); /* test string here */
var out1 = document.getElementById('out1'); /* results here */
r = inp1.value.split(','); /* get find , replace */
var str = inp2.value;
var find = r[0] || '';
var repl = r[1] || '';
var result = str.replace(find, repl);
out1.value = result;
}
</script>
</head>
<body>
<p>regex</p>
<textarea id="inp1"></textarea>
<p>test string</p>
<textarea id="inp2"></textarea>
<p>result</p>
<textarea id="out1"></textarea>
<script type="text/javascript">
setInterval('test()', 100);
</script>
</body>
</html>
Now, it DOES work if I do something simple like enter the word "Test" for the test string and T,X for the "regex" (the result transforms into "Xest" as it should). But if I put in something like this: /<p(.*?)>(.*?)<\/p>/gi,'$2' for the regex and <p class="test">Hello</p> for the test string The result is <p class="test">Hello</p> when it should be just Hello I can put regex strings into an array and of course it works (for example): Code: var find = [/<p>/g,/<\/p>/g]; var repl = ['P open', 'P close']; var n = find.length; while (n--) str = str.replace(find[n], repl[n]); ...blah...blah... So why doesn't my code work when I'm using variables that contain find and replace strings??? Am I missing something, or can it not be done this way? -- Roger (edit to add): The above code is online HERE here is the html code that i have PHP Code: <td valign="middle" valign="middle"> <input type="radio" name="gender" id="genderM" value="Male" /> Male <input type="radio" name="gender" id="genderFM" value="Female" /> Female </td> and here is the js funtion PHP Code: var $j = jQuery.noConflict(); function isValidEmail(str) { return (str.indexOf(".") > 2) && (str.indexOf("@") > 0); } function validateForm(){ var firstName; var lastName; var email; var mobile; var comment; var error; firstName = $j('#firstName').val(); lastName = $j('#lastName').val(); email = $j('#email').val(); mobile = $j('#mobile').val(); comment = $j('#comment').val(); if(firstName=='' || firstName.length < 3){ error = 'Please Enter Your First Name'; $j('#errormsg').html('<p class="errors">'+ error +'</p>'); return false; } if(lastName=='' || lastName.length < 3){ error = 'Please Enter Your Second Name'; $j('#errormsg').html('<p class="errors">'+ error +'</p>'); return false; } //mob //$jmob_pattern = '^\d{10}$j'; if(mobile.length != 10 || isNaN(mobile)){ error = 'Please Enter Your Mobile Number'; $j('#errormsg').html('<p class="errors">'+ error +'</p>'); return false; } if(email=='' || !isValidEmail(email)){ error = 'Please Enter Your Email Address'; $j('#errormsg').html('<p class="errors">'+ error +'</p>'); return false; } if(comment.length < 5){ error = 'Please Enter A Comment'; $j('#errormsg').html('<p class="errors">'+ error +'</p>'); return false; } return true; } Does anybody know how i check to see if the radio button is select and also can anybody tell me how i can check for an email in the correct format the function isValidEmail in the above alows emails to pass through if they are in this format aaa@aaa. i only want them to go through if they are aaa@aaa.com Thanks for your help if you give it Hey all. I have a simple validation I need to do. I need to just make sure that a Checkbox is checked, and that a Text field has content. Sounds simple but I cannot find any thing that has a check and a text field. Here what I have. Can I modify this script to do this? A Checkbox MUST be checked and Text field MUST be filled out. This currently does the text field fine, but no Checkbox obviously. How can I add a checkbox validation to this? Thats it. Any help is appreciated. Code: <script type="text/javascript">
var textFields = ["digsig"];
function validateForm( )
{
var oops = ""; // must initialize this!
var form = document.sig;
for ( var t = 0; t < textFields.length; ++t )
{
var field = form[textFields[t]];
var value = field.value.replace(/^\s+/,"").replace(/\s+$/,""); // trim the input
if ( value.length < 1 )
{
oops += "You MUST enter your Digital Signature";
}
}
if ( oops != "" )
{
alert("ERROR:" + oops);
return false;
}
}
}
</script>
I have this code so far; PHP Code: validatePhone : function(field, caption) { phoneNumber = /^[0-9]{11}$/; if(phoneNumber.test(field.val())) { return true; } return i18n('phone', caption); }, It works fine for entering an 11 digit number. However, I want to check that the number starts with either 077, 075, 079 or 078. Also, if the field is empty then it can also be accepted. How would I do this? Thanks Hi, I'm using this site Translator Editor - LingoJam I'm trying to use the regex portion of the site (click regex on the page that link goes to) to create a substitution cipher - a translates to o, etc. so far I have Code: /a/g -> o /o/g -> u Theoretically, that'd mean when I typed in "a", it would translate to "o", and when I typed in "o", it would translate to "u". Trouble is, it doesn't know when to stop. I type in "a" and it immediately returns "u", because it substitutes the "o" that it should end up as for the "u". Any help on this matter would be appreciated. Thank you. Reply With Quote 12-29-2014, 08:34 AM #2 Philip M View Profile View Forum Posts Supreme Master coder! Join Date Jun 2002 Location London, England Posts 18,371 Thanks 204 Thanked 2,573 Times in 2,551 Posts That is bound to occur if you use onkeyup to translate the letter immediately it is typed. You should create the cyphered text once the whole message is complete. All advice is supplied packaged by intellectual weight, and not by volume. Contents may settle slightly in transit. I am creating a userscript and trying to take the following: Arian Foster (Hou - RB) and end up just with the team name: Hou You can't remove by index (which I would be able to do), because it might be K instead of RB or NO instead of Hou. I am assuming that you use Regex and the replace function to do so, but I am struggling with understanding all Regex symbols. Can someone help me with this and explain it briefly? I would appreciate it. Should alert '' twice , instead alerts original text Code: text = 'p18=100';
text = text.replace("(^|&)p100=18.*?(&|$)","")
alert(text);
text = text.replace(/(^|&)p100=18.*?(&|$)/g,"")
alert(text);
tested regex on online tester and it should be OK. ? Hello all, new here Seems like a very nice place to be apart of. I have my website www.gebcn.com. If you view source you will see all that I have done, but more importantly my problem. I have the JS code at the top there and I am unable to W3C validate my HTML because of the JS. I am using XHTML strict and would like to stay using it. The JS I have at the top is my form validation code. I am able to do any validating that I need with this "snippet" of code, I have shrank it from my library version just to use for this newsletter. Until now W3C validating was not important now for some reason it is and I am faced with this problem. I am not a Javascript guy more of a HTML/CSS guy and I can manipulate JS to suit my needs. <problem> I have tried to make this "snippet" of JS code an external file but receive multiple errors with the JS calling for the FORM NAME as it is not on the same page. The form NAME=NEWSLETTER is another problem, as W3C says I am unable to use attribute "NAME" in this location. <problem> I would like to keep the JS close to how it is now as I have a library to use this JS over and over again. Any pointers in the right direction or solutions to my problem would be greatly appreciated. Thanks! Hopefully it is not to hard huh If there is anything anyone needs, the code pasted here, or anything else please let me know. Thanks again! I am trying to grab all text between <START> and <END> and have the following bits of code, but neither are returning anything. I use JS so rarely that I can't see where the problems are - Code: var ermtext = response.match(/<START>(.*?)<END>/i);
if (ermtext) {
result.ermtext = ermtext.replace("$1");
}
Code: var patt=/<START>(.*?)<END>/i; result.ermtext = response.match(patt, "$1"); Hey everyone, I'm working on a script, but I've been stopped by an error code from regex's match function. Firefox is giving me a "text.match is not a function". My assumption is that it may be the getSelection that is causing the error. Any clarification would be much appreciated! Code: function captureText(){
var txt = "";
if(window.getSelection){
var text = window.getSelection();
}
else if(document.selection){
var text = document.selection.createRange().text;
}
else {
return;
}
if(text != ""){
var reg = /^[A-Z](.*?)+(\.)$/g;
var check = text.match(reg);
alert(check);
alert("You selected: "+text);
if(window.getSelection){
window.getSelection().removeAllRanges();
}
else if(document.selection){
text.blur();
document.selection.empty();
}
else {
return;
}
}
}
document.onmouseup = captureText;
Thanks. Hi - I am trying to use this code to validate, function test() { var pattern = (/^\d{3}[-]?\d{2}[-]?\d{4}$/g); var pattern1 = (/^d{3}$/g); if(!pattern.test(document.myform.textInput.value)||(!pattern1.test(document.myForm.textInput.value)) ) { alert("Error!"); } } using regular expressions to compare a string from an input with two patterns that could both be valid. Therefore I'm pretty sure I need to use "||" between them both. I can't quite figure out how to get javascript to check for both patterns, only the first seems to be checked as valid. Is it something to do with the way I have my brackets? Can someone point me in right direction, Thanks i'm trying to make a validation page and i am having issues with some of them AGE - i'm not sure where to go from here Code: var age = /^[0-9 ]{3,20}$/; // trying to check age (only 18-25 is valid)
Name - how do i make it so that no spaces are allowed? Code: /^[A-Za-z ]{3,50}$/
street - i have no clue where to even begin on this. i think that RegEx can't be used to validate all addresses, but something simple like 123 main street. maybe something like this Code: preg_match('/.{2,60}$/',$address)
here's an example of my zip code one to give you an idea of what im going for Code: function checkZip(){
var re5digit=/^\d{5}$/ //regular expression defining a 5 digit number
if (document.myform.zip.value.search(re5digit)==-1) //if match failed
alert("Please enter a valid 5 digit number inside form")
}
HTML FORM Code: <form name="myform" onsubmit="return checkZip()"> <fieldset> <legend>Test Form</legend> Firstname*: <input type="text" name="firstname"/><br/> Lastname*: <input type="text" name="lastname"/><br/> Street*: <input type="text" name="street"/><br/> City*: <input type="text" name="city"/><br/> State*: <input type="text" name="state"/><br/> Zip*: <input type="text" name="zip"/><br/> Age*: <input type="text" name="age"/><br/> Gender*: <input type="text" name="gender"/><br/> Major/Program Choice*: <input type="text" name="major"/><br/><br/> <input type="reset" /> <input type="submit" /> what is a good way to combine these into all one function using getElementByID? i could make another function and put all the other functions in it, but i'm not sure where i can incorporate getElementByID when the verification is complete, i want to display all the info using getElementByID and innerHTML. should i make vars that hold all the info and put in after a span somewhere? The following code works as required - Code: if (result.marc.f695.subfields['a'] != "Electronic journals"
&& result.marc.f695.subfields['a'] != "electronic journals") {
return;
}
However, this isn't the most efficient way to code it, especially as I want to add further possibilities, most beginning with "[Ee]lectronic. I know I need to use regexes, and think the code I need to use is something like /[Ee]lectronic/, but I use JavaScript so rarely that I'm not sure how to build this into the above expression. Can anybody help? hi, Getting on quite well, I feel. just would like you to confirm that this regex will strip out characters that cannot be in a phone number those are (imv) 0-9 - ( ) + Code: val = val.replace (/[^0-9\\s\\-\\(\\)\\+]/gi,""); // strip the characters that cannot appear in a phone number I use double backslashes to keep the perl interpreter happy. otherwise (in case it simplifies it for you), it would be Code: val = val.replace (/[^0-9\s\-\(\)\+]/gi,""); // strip the characters that cannot appear in a phone number bazz Hi: I think this is where I need to ask this. I am doing a PHP/mod_rewrite and I need to tweak one of the RegEx's used in it but I don't know the syntax. I have this bit of code: Code: <a href="http://www.mywebsite.com/Promotional.Products-Promotional.Items/Promotional-Products/<?php echo $product_id ?>-<?php echo str_replace(" ", "-", $myTitle) ?>-<?php echo $full_state ?>-Promotional-Products.html" title="<?php echo $myTitle?> <?php echo "$full_state"; ?>"><?php echo $myTitle?></a>
RewriteRule ^Promotional.Products-Promotional.Items/Promotional-Products/([0-9]+)-([a-zA-Z]+)-([a-zA-Z]+)-Promotional-Products.html$ Promotional.Products-Promotional.Items/Promotional-Products.php?product_id=$1&myTitle=$2&full_state=$3
I wanted to know how I can revise the middle RegEx: Code: ...-([a-zA-Z]+)-... to include replacing all spaces with hyphens. Can someone help me with this, please. Thanks! I am trying to run a simple replace over some css a user puts into a textarea. I would like to remove all the comments Code: /* MY COMMENT */ I have tried the following to try and escape the forward slashes but to no avail. Code: replace(/\/*(.*)\//g,""); any ideas? Thanks! I am attempting to remove all HTML tags with nothing in the middle. For example, I want to remove this Code: <b><i><u> </u></i></b> I've written an expression that does that, but there's an issue with it. Here's my regex: Code: messageVal = messageVal.replace(/(<[^\/>]*>)+[\s]*(<\/[^>]*>)+/g,''); The issue is that I only want to delete as many end tags as I found open tags. An example that my regex doesn't work on is... Code: <b> hello <u><i> </i></u></b> The current regex will output: Code: <b> hello I need it to return: Code: <b> hello </b> Any ideas? Hello, I have this piece of code I read from a book to remove text nodes that only have white space. Code: if (node.nodeType == 3 && ! /\S/.test(node.nodeValue)){
// code to remove the text node
}
Why should we use this: Code: ! /\S/.test(node.nodeValue) Instead of this? Code: /\s/.test(node.nodeValue) |
|||||||