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JavaScript - Searching For String Starting With Expression
hi guys,
I'm having a bit of trouble with javascript... I'm searching for a string that starts with another string code: for (x in products ){ s = products[x].id.toString(10); v = "/\b"; v += idValue.toString(10); v += "/g"; alert(v); found = s.match(v); alert(found); } the variables are integers but since i'm searching for the beginning only i turned them into strings... the problem occurs when I add the \b it turns out gibberish.. any help will be gladly appreciated. p.s. if there is a faster way to do it without turning the variables to string also would be great to know. Similar TutorialsHi guys im new here i have a project about searching string im am going to use javascript the program should look like this. Enter first word: abcd Search in first Word: ab then pop up ab found then if i type like sdg then pop up sdg not found something like this plss how can i do that I have a .c file with many function calls like, say, "ABC ( x, y, z);" My concern is to extract just the function name ABC. My approach is to read the file using streamreader.ReadToEnd(), and find the function name using regular expression \b\w+(\([a-z]*[0-9]*\)\b\w). the function call may be of the form... ABC ( xab, ybc, zbc, hgs );" i.e. the syntax is spread thru multiple lines. in the end i just want the function name ABC. please help me with the regular expression or if there is any other approach. Thank U Hi, I am trying to search an array for a string and then if it is found alert it. I have found examples of how to iterate the array and how to use .IndexOf to return a true false statement as to whether the array includes the string, but i don't know what to do after that and how to display the string if its found. Any help appreciated.. Thanks ok so Code: <p> Howdy <p> expressed as a literal string that is passed to the setTimeout() function might look like this: Code: setTimeout("document.getElementById('first').innerHTML = '<p>' + 'HOWDY' + '<\/p>';", 2000);
..so I guess you can't just put quotes around an expression like this: "'<p> HOWDY <\/p>;" So tags have to be isolated, but it get confusing with expressions like this, which I am not sure how to express as a string: Code: <p><h2 class="pos_left"> <img src="car1.jpg" name="slide" width="400" height="250" /> </h2> </p> ^ I wish I could change the " in there to ' and then just wrap the whole thing in double " This is what I came up with but it did not work: Code: setTimeout("document.getElementById('first').innerHTML = '<p>' + '<h2' + 'class='pos_left'' + '>' + '<img' + 'src='car1.jpg'' + 'name='slide'' + 'width='400'' + 'height='250'' + '/>' + '</h2>' + '<\/p>';", 4000);
OK so I have a simple fare I have to compute. There is a start zone and an end zone. There are 3 separate zones so 9 different charges. Plus there are charges for minutes too 0-4, 4-10, 10-20 and 20 to no limit. The user will input 3 parameters the start and end zone and the time. This would be a JS file. HELP
Hey i need some help delaying this script so it starts 5 seconds after the page loads not instantly. <script> $('#ad_1 > img').each(function(i,e){ rotate($(this),600,4000,i); }); function rotate(elem1,speed,timeout,i){ elem1.animate({'marginLeft':'18px','width':'0px'},speed,function(){ var other; if(elem1.parent().attr('id') == 'ad_1') other = $('#ad_2').children('img').eq(i); else if(elem1.parent().attr('id') == 'ad_2') other = $('#ad_3').children('img').eq(i); else if(elem1.parent().attr('id') == 'ad_3') other = $('#ad_1').children('img').eq(i); other.animate({'marginLeft':'0px','width':'35px'},speed, function(){ var f = function() { rotate(other,speed,timeout,i) }; setTimeout(f,timeout); }); }); } }); </script> Hi! I'm just starting to learn java script and have a questions. If anyone could answer this it'd be great. When preloading images for use in things like mouseout/on/etc what is the proper code? var image1, image 2; image1 = new Image() image1.src = "" image2 = new Image() image2.src = "" OR var image1 image1.... var image2 image2.... The book I have list both but only the 2nd way I listed works. Why? Thanks Hi all, working on building a website at the moment. and i need to create a script that will increment a number by 0.01, then stop and decrease by 0.03, then increase again by one. I wrote code to increment by 0.01 continuouly but now i can't stop it. and change to decreasing <script type = "text/javascript"> num = 0.87; var tim = 0; function makeNum() { num = ((num*1) + .01).toFixed(2); document.getElementById('count').innerHTML = num-.01; tim = window.setTimeout("makeNum()", 2000); } makeNum(); </script> And now I'm Completly stuck. Help would be grately appreciated Thanks I had this filterable thing working perfectly but seem to have done something that just makes all the items flash constantly when you try and filter (click the blue section All | Illustration | Animation). Can someone take a look and help at all? http://bit.ly/4yWiDZ I am trying to change the background color of TD's that only the exact text PTO and really do not grasp regex's string/element examples: Code: <td class="ms-cal-todayitem"> Ward, Daniel M. - PTO - home - im awesome. </td> <td class="ms-cal-todayitem">Ward, Daniel M. - UPTO - home - im awesome. </td> I tried this: Code: $("td.ms-cal-todayitem").filter(function() {
return /PTO/.test( $(this).text() );
}).css("background-color","#C4DBFF")
but it also changes the background of items like my second element example. - Yes it should be case sensitive, if possible. Hey all, I have a simple example below showing how when I pass in the value of the value attribute of option node, and then use if operator to check whether parameter is a string or not, even though it's a string, it converts it to false boolean and triggers the else statement rather than calling a function: Code: <body> <select> <option value="createMsg">Add Message</option> <option value="removeMsg">Remove Message</option> </select> </body> Code: var menu = {
handleMenu : function(callback){
if(callback === "string"){
menu[callback]();
}
else {
console.log("Issue occurred")
}
},
createMsg : function(){
var content = document.createTextNode("Please give additional information."),
heading = document.createElement("h1");
heading.appendChild(content);
document.body.appendChild(heading);
},
removeMsg : function(){
}
}
document.getElementsByTagName('select')[0].onchange = function(){ menu.handleMenu(this.value)};
callback should be a string so why is it saying otherwise? Thanks for response can anyone explain me in detail what this regular expression mean... each and every part of this sentence: var baseRegex = new RegExp("^(?=.{6,})(?=.*^[A-Za-z]([a-zA-Z0-9_-]+)$)(?=.*[A-Z])"); I want to find in all occurrences of #(...) in a string (what is between the parentheses is unknown. At the moment I have Code: str.match(/#\(.*\)/) The problem is, I want to be able to have multiple of these in one string, like "#(hello) good #(world)", but RegExp takes me from the first '#', to the last ')'. I want to allow nested parentheses, so I am thinking that there should be away to not let it look past the second '#'. How would I do this? 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 thx in advance Hello, How can i validate string with alphanumeric, space, dash and dot in regular expression ? Hi all, I have this line (part of a larger function that converts a few common BBCodes into HTML) and I don't know how to do one thing. First, here's the line: Code: str.replace(/\[color=(.*?)\](.*?)\[\/color\]/gi,'<span style="color:$1;">$2</span>'); It works fine if I do this (I'll mis-spell "color" to prevent messing up the board): THIS works fine..... [colur=#ff0000]Red Text[/colur] But of course, if I do this: [colur="#ff0000"]Red Text[/colur] It doesn't work. What I need to do is take the $1 variable, AFTER it's captured, but BEFORE it's used, and strip out any quote marks I find. I may want to also strip out, then add the hash sign (#) also, then put it back so it works with or without the #. While I'm at it, I'll also probably detect color as a hex string vs. a keyword (so that both "#ff0000" and "red" work) and probably also support the rgb() method. But first I need to know how to access and modify $1 BEFORE it's used. I'm hoping that I don't need to use two lines (or two separate .replace() calls). Thanks! -- Roger I am trying to find the correct regular expression (or an alternate) for if a user enter any more than 1-3 digits in the age field of a form it produces an error message. I already have the error set up, just the correct coding to produce the 1-3 digit condition. Thanks, KWIKCUCUMBER. I want to validate a form with only numbers and "$" sign. so far i know this Code: currencyValue = which.value;
var re = /^[0-9]*$/;
if (!re.test(currencyValue)) {
alert("Value must be all numberic charcters, non numeric's removed from field!");
field.value = field.value.replace(/D/g,"");
}
but how do I also add the "$" sign as ok? 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! Dear experts I have following codes Var re=/(\d){4}-(\d){7}/; When I test this string 0300-685706263 It says TRUE But I validate this string exactly 0300-6857062 Please help |
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