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JavaScript - Check For Arabic Characters In A String
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 Similar TutorialsHey all, I have a simple example below showing how when I pass in the value of the value attribute of option node, and then use if operator to check whether parameter is a string or not, even though it's a string, it converts it to false boolean and triggers the else statement rather than calling a function: Code: <body> <select> <option value="createMsg">Add Message</option> <option value="removeMsg">Remove Message</option> </select> </body> Code: var menu = {
handleMenu : function(callback){
if(callback === "string"){
menu[callback]();
}
else {
console.log("Issue occurred")
}
},
createMsg : function(){
var content = document.createTextNode("Please give additional information."),
heading = document.createElement("h1");
heading.appendChild(content);
document.body.appendChild(heading);
},
removeMsg : function(){
}
}
document.getElementsByTagName('select')[0].onchange = function(){ menu.handleMenu(this.value)};
callback should be a string so why is it saying otherwise? Thanks for response hi all, am doing a check on my fields, so that they only contain certain characters and numbers. i have this. var validEntry = /^[a-zA-Z0-9@$&"]+/; but this also captures a space in between words as an error. can somebody please tell me on how to avoid this. thanks. Hi chaps, Ive got a project and ive been steaming ahead with it myself for a bit, i was given the code to start off with but have adapted it for my own needs. As well as fieldOne being a minimum of 3 characters I also need to check if the first three characters are the same because we get a lot of spam. Thanks in advance Code: function showResults(results) {
var fieldOne = document.getElementById('edtName').value;
var minLength = 3;
if (!results.Status.Success) {
//alert(results.Status.ErrorMessage);
window.location = "There has been an error. Please try again."
}
else
if ( results.Result && fieldOne.length > minLength ) {
document.forms[0].action = 'getmoreinfo.php';
}
else if ( results.Result && fieldOne.length < minLength )
{
document.forms[0].action = 'getlost.php';
}
else
{
document.forms[0].action = 'getafreeguide.php';
}
document.forms[0].submit();
}
How can to obtain length of string variable, for example if I have: var msg = 'hello world!'; Does it exist a method to count string characters? Hi, So I've got an array called questions_raw Code: questions raw = [
["<Q1> Question",
"choice1","choice2", "choice3"],
["<Q2> Question",
"choice1","choice2", "choice3"],
...
]
And I want to list all of the questions, but not the choices/answers. So far, I've managed to list just the questions, but because another function randomly sorts them, I need to sort them back into numerical order for a separate function (displaying the questions) I use characters (>,^) at the front to separate them into different answer types (just to explain the code) I try this to cut each string down so that they can be sorted numerically/alphebetically - Code: function linearlist()
{
var list = [];
var tempStr = "";
for (var l = 0; l < 145; l++)
{
tempStr = questions_raw[l][0];
list[l] = tempStr;
}
if (list.charAt(0)== " " ) list = list.substring(3) ;
if (list.charAt(0)== ">" ) list = list.substring(3) ;
if (list.charAt(0)== "^" ) list = list.substring(3) ;
var sorted = list.sort();
document.Qtext2form.Qtext2.value = sorted.join("\n");
}
But it doesn't like it - because "it has no method charAt" Any idea what i'm missing? Is it just that you have to put the [l] in every time you call a variable? Cheers Can some one help me, I want to replace the characters from a string and I have tried with this script: Code: var v5=form.description.value.replace(/#/, "%23"); But it only changes the first character from the string. Turning #### into %23### but I want them all transformed. I have a problem thats above my head, im new to javascript. I want to be able to control the first three characters of an input string on a login form. If a user types GP15555 or JP15555 I want it to change to GPL5555 or JPL5555 respectively changing the "1" to an "L" on the prefix is this at all possible? any point in the right direction would be great. heres my code Code: </script>
<script language="JavaScript" type="text/javascript">
//<![CDATA[
function Login(form) {
var password = form.password.value;
var pin = form.pin.value;
var product = form.product.value;
if (password) {
var htsite = product + "/" + password + "/" + pin + "/index.html";
window.location = htsite;
}
else {
alert("Please enter your password and pin.");
}
}
// End -->
//]]>
</script>
/thanks gp I need to declare a variable (astString) and initialise it with a string of asterisks. astString needs to be the same length as another variable (otherString). otherString changes it value regularly so I think I need to use the .length property in some way but I can't see how! This should be simple but it's eluding me completely. I need to check if a var (lessonnum) is a string that cannot be converted to a number, i.e. "fred" "george" "catalyst" etc. but not "5" "456" or "34564" etc.: Code: var lessonnum = readCookie('lesson');
if ((intro != "12")||((lessonnum != "A STRING THAT COULD BE A NUMBER"))){
do sth.
}
How could I do that? string check in javascript do suggest me something ....... if you have any two words like , "me" and "you". I have thought about using the standard email checker pattern but we have had problems in the past so looking to check if the string follows these simple rules. has no spaces, has a character/s at the start followed by an @ then has a character/s followed by a (dot) then another character/s i.e a@a.a aa@aa.aa aaa@aaaaaaaaa.aaa i am not sure how the standard pattern works but feel that it may be to complex which causes some email address to fail. Basically I have this: function semaphore(phrase) { var len = phrase.length; var str1 = ""; for (var i=0;i<len;i++) { if(phrase[i]=" ") { phrase[i] = "interval"; } var str = "images/semaphore/" + phrase[i] + ".gif"; str1 = str1 + "<img src='" + str + "'>"; } return str1; } so if phrase = i love coding forums I want all the spaces to be replaced with the text "interval" Thanks Danny Function findsometing() ( var myString = 'results' + '<BR>' for (var initiator, test condition,incrementor.) { if (.....) { myString ='some quote'; } else if (.....) { myString += something + '<br>' } else if (....... ) { myString += something + '<br>' } else { myString += ''; } } displayMessage(myString) ) I am a complete newbie to javascript and programming, so excuse any faux pas, but I want to check the myString variable after all the loops in the for loop statement have been completed. For example if nothing was added to the var myString after the completeion of the for loop, i want to display a message that no results found. i tried various attempts of an if statement along lines of } } if (myString = 'results') ....i also tried if myString= ('results' + '<BR>') { displayMessage('no results found') } else { displayMessage(myString) } ) Any pointers as to where i am going wrong? On this webpage http://www.corkdiscos.com/testimonials.html i have a like button. when a user clicks like a comment box appears. when i unlike the button the comment box disappears this is ok but when a user has already liked the facebook page and comes to my webpage the comment box does not show. so im looking for a piece of javascript to check if a user has like the button on my page and if so to show the comment box. please check my source code of the website http://www.corkdiscos.com/testimonials.html to see what i have so far. any help would be greatly appreciated Hi guys. I'm working a bunch of pre existing code on a CMS. Just after a quick fix. Doing a show/hide thing on a particular div somewhere on the page depending if a checkbox is ticked or not. Currently there is 3 checkboxes that are dynamically added through the CMS. Here's simplified version of the form: Code: <form id="simplesearch" name="simplesearch"> <input type="checkbox" onclick='showhidefield(this.value)' name="meta_data_array_search_criteria[custom_profile_type][]" value="5" class="input-checkboxes" /> <input type="checkbox" onclick='showhidefield(this.value)' name="meta_data_array_search_criteria[custom_profile_type][]" value="4" class="input-checkboxes" /> </form> And here's the javascript I was playing with. Code: function showhidefield(id)
{
if(document.simplesearch.meta_data_array_search_criteria[custom_profile_type][''].checked) {
document.getElementById("profile_fields_wrapper_" + id).style.visibility = "visible";
}
else
{
document.getElementById("profile_fields_wrapper_" + id).style.visibility = "hidden";
}
}
Problem I'm having is how do i do a check to see if those checkboxes are checked in the javascript with those name arrays? How do i separate them? 'm guessing I have to loop through them or something?Hopefully that make senses - it's late here and I'm losing the plot Any pointers would be gratefully welcomed Need to know how to define hex characters for the following; var x = hex value var y new Array(hex value, hex value, etc) document.write(hex value) I'm trying to figure out the proper way to correctly get each full-formation of encoded html (of Unicode), so that I could assign each HTML encoding with its each Unicode characters HTML Encoded Unicode: &#2344;&#2351;&#2366; &#2344;&#2375;&#2346;&#2366;&#2354; I want to retrieve each encoded HTML and assign them into array like this Code: var my_array = new Array();
my_array [0] = "2344";
my_array [1] = "2351";
my_array [2] = "2366";
my_array [3] = "2344";
my_array [4] = "2375";
my_array [5] = "2346";
my_array [6] = "2366";
my_array [7] = "2354";
Thanks in Advance for helps So, I have this javasript code in HEAD <script type="text/javascript"> <!-- function validateThis(registerForm) { if (registerForm.firstname.value == 'Name') { alert("Oops"); return false; } else { return true; } } //--> </script> with this form in BODY <form action="register.php" method="post" name="registerForm" onSubmit="return validateThis(this)"> <input type="text" value="Name" onclick="if(this.value=='Name'){this.value=''}" onblur="if(this.value==''){this.value='Name'}" name="firstname"> </form> and I want to put a text with Greek characters instead of value "Name". I tried it and the "function validateThis" didn't work. The form just passes it and returns true. I tried also hexadecimal code,HTML entities and numeric HTML entities and didn't work either. What I should I do? Thank you in advance! |
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