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  • Javascript - Jquery .load() and setInterval() issue.

    - by Joe
    Let's say I do this: $("#content").load(...); Within what I'm loading some javascript is included: var myCounter = 0; var myInterval = setInterval(function(){ myCounter++; $("#counter-display").html("Count: "+myCounter); }); For an unknown reason, if I reload the content with $("#content").load(...); - myInterval is now being called twice. I tried doing something like: if (myInterval !== undefined){ //dont set interval again } However, it doesn't work. Does anyone know any method so that myInterval is cleared on .load, without needing to put the javascript outside of the loaded file?

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  • Javascript / jQuery Exec turns up Null

    - by Matrym
    How do I skip over this next line if it turns out to be null? Currently, it (sometimes) "breaks" and prevents the script from continuing. var title = (/(.*?)<\/title/m).exec(response)[1]; $.get(url, function(response){ var title = (/<title>(.*?)<\/title>/m).exec(response)[1]; if (title == null || title == undefined){ return false; } var words = title.split(' '); $.each(words, function(index, value){ $link.highlight(value + " "); $link.highlight(" " + value); }); });

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  • Build Path issue with Java Android project when starting Eclipse

    - by Matt Smith
    I booted up eclipse to start on a project, and without typing in a word I already have several errors. package department.namespace; import android.app.Activity; import android.os.Bundle; public class DepartmentActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); } } At package department.namespace, it says: multiple marks at this line and the type java.lang.Object cannot be resolved. It is indirectly referenced from required .class files The import android.os cannot be resolved. Override cannot be resolved as a type The method OnCreate(Bundle) is undefined for the type Activity R. cannot be resolved as a variable. Since this JUST came up when I started Eclipse, how do I fix this?

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  • ext4 loopback device, Buffer I/O Error on reboot

    - by cvb
    I am trying to mount a loopback device on my ext4 formatted ssd drive. I get these errors when I reboot on Linux kernel 2.6.38.8 Buffer I/O error on device loop1, logical block 0 Here is what I do: dd if=/dev/zero of=/mnt/s/lodev bs=4096 count=250000 mkfs.ext4 /mnt/s/lodev mount -n -o loop,rw /mnt/s/lodev /mnt/test The loopback mount is successful, but on reboot I get errors as mentioned above. Even mouting with 'sync','data=writeback' does not help. I tried to losetup a device, but see the same behavior. I also reformatted the base device and created the loopback device and mounted as above, I still see these errors. I do not see them when I format them as vfat. Appreciate any suggestions on this problem.

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  • Naming suggestions for a function returning parent prototype

    - by hevalbaranov
    I'm having a naming trouble with a function which returns parent prototype of specified object. It's being used like this: # Pseudo Code MyClass { super(MyClass,this).constructor.call(.... The problem is that I want to use a word which is as superior as "super", but "super" is reserved even it's undefined. Now I'm using "parent", but the window object has a property named parent. I hate Javascript. What should I name this function? Names have to start with lowercase and have to be short.

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  • Slowness on Exchange 2007 Server (network related we think)

    - by Az
    We are seeing some odd behavior out of our exchange 2007 server. I believe it is network related as during the slowness in response from the exchange server. During these times downloading files to server is fraught with connection resets and extreme slow download speeds that are not affecting other servers right on the same subnet with the same gateway and ISP. We have about 50 users at a time using Outlook 2003 from a terminal server not displaying any other signs of slowness, all network slowness is confirmed trying downloads on the exchange server itself. Checked for virus issues, there are none. Checked for hardware issues, none found I am noticing between 200-400 TCPv4 connections established I am seeing around 100k tcpv4(active) connections according to perfmon are these numbers odd? Has anyone run into anything similar? Our server has a gigbabit NIC linked to a gigabit switch using cat6 so I do not believe it is "physical". Thanks!

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  • Rails Association issue with NoMethodError in event_controller

    - by pmanning
    Kinda a noob trying to understand I think I need to define rsvps but not sure what to put... I'm trying to add a Join/Unjoin button to user created Events, similar to a Follow/Unfollow button for Users. NoMethodError in Events#show undefined method `model_name' for NilClass:Class in line #1 _unjoin.html.erb 1: <%= form_for(current_user.rsvps.find_by_joined_id(@event), 2: html: { method: :delete }) do |f| %> 3: <%= f.submit "Leave", class: "btn btn-large" %> 4: <% end %> events_controller.rb def show @event = Event.find(params[:id]) @user = current_user end Here's the models rsvp.rb class Rsvp < ActiveRecord::Base attr_accessible :joined_id belongs_to :joiner, class_name: "User" belongs_to :joined, class_name: "User" validates :joiner_id, presence: true validates :joined_id, presence: true end user.rb has_many :rsvps, foreign_key: "joiner_id", dependent: :destroy has_many :joined_events, through: :rsvps, source: :joined has_many :reverse_rsvps, foreign_key: "joined_id", class_name: "Rsvp", dependent: :destroy has_many :joiners, through: :reverse_rsvps, source: :joiner event.rb belongs_to :user has_many :rsvps, foreign_key: "joiner_id", dependent: :destroy has_many :joined_events, through: :rsvps, source: :joined has_many :reverse_rsvps, foreign_key: "joined_id", class_name: "Rsvp", dependent: :destroy has_many :joiners, through: :reverse_rsvps, source: :joiner

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  • Why does MOVE command in DOS treat wildcard patterns oddly in this case?

    - by Adisak
    I am using the "move" command with a wildcard pattern in the CMD prompt under Windows 7. In my source directory, I have the following files: movie1.avi movie1.avi_metadata movie2.avi movie2.avi_metadata If I type the command move source\*.avi dest it will move all four files even though I would expect it to only move the two *.avi files and not the *.avi_metadata files. As expected, move source\*.a dest and move source\*.av dest don't move any files. However when the length of the extension for the wildcard pattern is 3 characters, it will move all extensions that begin with those first three characters. Is this a bug in the "move" command or expected behavior and is it documented anywhere? Edit: John Watts notes that this is probably do to "short" filenames. Is it possible then to make commands in the CMD interpreter only operate on long filenames and to ignore short filenames?

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  • Javascript recursive data structure definition

    - by Matt Bierner
    I need to define a data structure recursively in Javascript. Here is a simple example of a circular linked list: // List a very simplified example of what the actual (non list) code does. function List(f, r) { return function(){ return [f, r]; }; } var head = List('a', List('b', List('c', head))); When this is executed, head in List 'c' is resolved to undefined, not List 'a' as I need. List is an example function that returns a function (It is not an Javascript list that I can append to). I tried to wrap the definition of head is a self executing named function, but that blew the stack when head was resolved. What is the Javascript style solution that I am overlooking?

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  • preg_match not defined in php4 in openwrt?

    - by user2723949
    I have installed the packages PHP4 and PHP4-CGI in openwrt through command line (opkg install) when I tried this simple code by putting this in the openwrt www folder, <?php $subject = "abcdef"; $pattern = '/^def/'; preg_match($pattern, $subject, $matches, PREG_OFFSET_CAPTURE, 3); print_r($matches); ?> I got this error Fatal error: Call to undefined function: preg_match() in /www/phptest.php on line 4 but php manual says preg_match() is defined in php4 also.. What might be the reason for this error? Is there any other PHP module that is to be installed? Or is there any alternate method for preg_match?

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  • I cannot get this Jquery Image ComboBox to Work

    - by WillingLearner
    Im trying to use this plugin: http://www.marghoobsuleman.com/jquery-image-dropdown I cannot get it to work in my file. I copied and pasted the code from the example files and made the necessary links to the js and css files just to test, and i still cant get it to work. Everytime i run it, i get this error: Error: Result of expression '$(".mydds").msDropDown' [undefined] is not a function The script im using to run the file is: <script language="javascript" type="text/javascript"> function showvalue(arg) { alert(arg); //arg.visible(false); } $(document).ready(function() { try { oHandler = $(".mydds").msDropDown().data("dd"); oHandler.visible(true); //alert($.msDropDown.version); //$.msDropDown.create("body select"); $("#ver").html($.msDropDown.version); } catch(e) { alert("Error: "+e.message); } }) </script> Why am I getting these errors and how can I fix it?

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  • Rails belongs_to issue in the views

    - by Jacobo Tibaquira
    Hi, Im having problems with an association in rails: Currently I have Post and User models, and the relationship is set this way: class User < ActiveRecord::Base attr_accessible :username, :name, :lastname has_many :posts end class Post < ActiveRecord::Base attr_accessible :title, :body belongs_to :user end However, in my app/views/posts/index.html.haml when Im trying to access the username for the post I get this error: undefined method `name' for nil:NilClass This is my view: - title "Posts" %table %tr %th Title %th Body %th Author - for post in @posts %tr %td= h post.title %td= h post.body %td= h post.user.name %td= link_to 'Show', post %td= link_to 'Edit', edit_post_path(post) %td= link_to 'Destroy', post, :confirm => 'Are you sure?', :method => :delete %p= link_to "New Post", new_post_path Any thoughts of what Im doing wrong will be appretiated

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  • notice in Jquery Autocomplete

    - by Katherine
    what is the problem if i got this notice saying: Notice: Undefined index: 8 in C:\xampp\htdocs\projects\wesm\intranet\plugins\survey_manager\index.php on line 80 i'm using the jquery autocomplete.. here is some of my code for javascript in which the error occurred: <script type='text/javascript'> var intranetUsers = ["<?php echo $content[0].' ", "'; $num = 1; while($num != $getInranetUserCount['num']){ echo $content[$num].'" , "'; $num = $num + 1; } echo $content[$getInranetUserCount['num']]; ?>"]; </script> I've already use that code in some module and it works I don't know why it doesn't work this time.

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  • Modifying a global variable from <a href>

    - by a_m0d
    I have created some code to popup a confirm dialog if a user tries to leave a page without saving their changes. However, I don't want the confirmation dialog to popup if the user has clicked the "Save" button. I have some code at the top of my file which looks like this: var confirmClose = false; window.onbeforeunload = function(evt) { if (confirmClose == true) { message = "There are unsaved changes on this page. Are you sure you wish to leave?"; if (typeof evt == 'undefined') { evt = window.event; } if (evt) { evt.returnValue = message; } return message; } } Further down on the page I have a link which looks like this: <a href="javascript:confirmClose=false;$('#stockForm').submit()" title="Save" class="button positive" id="stockFormSubmit">Save</a> However, this doesn't seem to work - it doesn't seem to change the value of confirmClose, and changing it to window.confirmClose didn't help either. What am I doing wrong here?

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  • Property value of a String object in JavaScript

    - by naivists
    As far as I understand, every string is an object in Javascript. Still, it "does not work" as I expect it to be: var a="abc"; //here we get a new string object a.b = 123; //I seem to declare a property "b" of that object alert(a.b); //alerts "undefined" However, if I try to define a string in the "wrong way", everything works as expected var a=new String("abc"); // a.b = 123; alert(a.b); //alerts "123" Why is that so?

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  • No internet access on Windows 7 - part 2

    - by Vnuk
    This is a continuation of my previous question. The problems started when I turned on my wireless connection for the first time. Since then, every time I boot my Windows 7, my LAN connection does not have internet access. In my previous question, I got a key answer (route delete). Now my procedure to get LAN internet connectivity (local network works fine) when I boot looks like this: Power on WLAN Disconnect LAN cable Power off WLAN Execute route delete 0.0.0.0 if 11 Connect LAN cable Now my LAN connection has internet access. Another behavior that I can't explain - while my LAN connection has no internet access, Network and Sharing center refers to it as Unknown network, with a public icon. When I go through the fore mentioned procedure, it is referred to with my home WLAN network name, with status connected, and the Unknown network disappears.

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  • Configure iptables with a bridge and static IPs

    - by Andrew Koester
    I have my server set up with several public IP addresses, with a network configuration as follows (with example IPs): eth0 \- br0 - 1.1.1.2 |- [VM 1's eth0] | |- 1.1.1.3 | \- 1.1.1.4 \- [VM 2's eth0] \- 1.1.1.5 My question is, how do I set up iptables with different rules for the actual physical server as well as the VMs? I don't mind having the VMs doing their own iptables, but I'd like br0 to have a different set of rules. Right now I can only let everything through, which is not the desired behavior (as br0 is exposed). Thanks!

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  • IE8 + Jquery ajax call giving parsererror from dJango : for json data which seems valid in Firefox

    - by PlanetUnknown
    The ajax call works fine in FF. the data returned is in JSON here is an example from FF firebug - {"noProfiles": "No profiles have been created, lets start now !"} When I try to print the error in IE8 (& in compatibility modes as well), it says "parsererror". But the output seems to be valid JSON. Here is the ajax function call I'm making. Any pointers would be great ! $.ajax({ type: "GET", url: "/get_all_profile_details/", data: "", dataType: "json", beforeSend: function() {alert("before send called");}, success: function(jsonData) { alert("data received"); }, error: function(xhr, txt, err){ alert("xhr: " + xhr + "\n textStatus: " + txt + "\n errorThrown: " + err); } }); The alerts in the error function above give - xhr:<blank> textstatus:parsererror errorThrown: undefined Any pointers would be great ! Note : jquery : 1.3.2

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  • Terminal command to change permissions to my 'Sites' folder and apply change to enclosed items?

    - by Ryan
    Using Snow Leopard, I'm having issues with permissions in my Sites folder. While I can navigate to localhost/~username and read any files or folders there, the same permissions have not been applied to enclosed items, and I get a 403 error trying to access them in the browser. If I select one of these enclosed folders and get info using Finder, I see the user 'Everyone' is set to 'No Access' but I can't change that (this behavior seems buggy, actually). And if I select my 'Sites' folder, the tool to 'Apply to enclosed items' is grayed out... Is there a Terminal command I can use to grant 'Read Only' access to my Sites folder, and all it contains, for the user 'Everyone'?

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  • Running a program causes everything afterwards to minimize

    - by Xitcod13
    I just installed LoL (league of legends) on my computer. The problem is that almost every time after I play the game, it minimizes all my windows which is really annoying. What is worse however is that afterwards other programs do this as well. Is there any way to fix this? What can cause such a strange behavior?? I recently installed the internet driver. Hopefully that is not the problem because this is the third internet card for this computer. I have noticed that my internet is messing up as well.

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  • Identifying program attempting to install certificate on windows

    - by R..
    I'm trying to help a friend using Windows (which I'm not an expert on by any means) who's experiencing malware-like behavior: a dialog box is repeatedly popping up reading: You are about to install a certificate from a certification authority (CA) claiming to represent: CE_UmbrellaCert Warning: If you install this root certificate, Windows will automatically trust any certificate issued by this CA. Installing a certificate with an unconfirmed thumbprint is a security risk. If you click "yes" you acknowledge this risk. AV and anti-malware scanners don't detect anything. My friend hasn't accepted installing the certificate, but whatever program is trying to install it keeps retrying, making the system unusable (constant interruptions). Is there any way to track down which program is making the attempt to install it so this program can be uninstalled/deleted?

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  • Migrating to ssh key authentication; implications of adding sbin's to users $PATH

    - by ancillary
    I'm in the process of migrating to key's for authentication on my CentOS boxes. I have it all set up and working, but was a bit taken aback when I noticed service (and other things) didn't work the way I was accustomed to. Even after su'ing to root, still had to call the full path for it to work (which I assume to be expected/normal behavior). I also assume this is because there are different $PATH's for root (what I was using and am used to) and the newly created, key-using user. Specifically, I noticed the sbin's of the world missing from the user path. If I were to add those paths (/sbin/,/usr/sbin/,/usr/local/sbin) to a profile.d .sh script for this new key-loving user, would: I be opening up the system in ways I shouldn't be? I be doing something I needn't do save for reasons of laziness? I create other potential problems? Thanks.

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  • Actionscript 2.0 Functions problem and somewhat "global" variable

    - by Joshua
    I have two problems. The first problem is with the following functions; when I call the function in (enterFrame), it doesn't work: onClipEvent (load) { function failwhale(levelNum) { _root.gotoAndStop("fail"); failFrom = levelNum; } function guardSightCollision(guardName, guardSightName) { if (_root.guardName.guardSightName.hitTest(_x, _y+radius, true)) { failwhale(1); } if (_root.guardName.guardSightName.hitTest(_x, _y-radius, true)) { failwhale(1); } if (_root.guardName.guardSightName.hitTest(_x-radius, _y, true)) { failwhale(1); } if (_root.guardName.guardSightName.hitTest(_x+radius, _y, true)) { failwhale(1); } } } onClipEvent (enterFrame) { guardSightCollision(guard1, guard1Sight); } Why doesn't it work?... The second problem lies in the failFrom variable: function failwhale(levelNum) { _root.gotoAndStop("fail"); failFrom = levelNum; } How do I make failFrom a "global" variable in that it can be accessed anywhere (from actionscript in frames and even movieclips)...Right now, when I try to trace failFrom in a different frame, it is "undefined".

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  • Elevate the weight of browsing history in Google Chrome's autocomplete

    - by maayank
    Google Chrome has the feature of auto-completing web addresses while you type them in the address bar. Alas, it gives absurdly more weight to Google's own auto-suggest v.s. my own browsing history, which seems a bit foolish - if I regularly (i.e. twice a week) check a certain website with the keywords "foo bar ponies" in its url, it is reasonable to expect that I will want to visit that site again and not other sites. While a bit subjective, to the very least I would expect such URLs to be in the list Chrome suggests, even if not at the top. Is there some plugin/secret option that alters the default behavior?

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  • Game logic dynamically extendable architecture implementation patterns

    - by Vlad
    When coding games there are a lot of cases when you need to inject your logic into existing class dynamically and without making unnecessary dependencies. For an example I have a Rabbit which can be affected by freeze ability so it can't jump. It could be implemented like this: class Rabbit { public bool CanJump { get; set; } void Jump() { if (!CanJump) return; ... } } But If I have more than one ability that can prevent it from jumping? I can't just set one property because some circumstances can be activated simultanously. Another solution? class Rabbit { public bool Frozen { get; set; } public bool InWater { get; set; } bool CanJump { get { return !Frozen && !InWater; } } } Bad. The Rabbit class can't know all the circumstances it can run into. Who knows what else will game designer want to add: may be an ability that changes gravity on an area? May be make a stack of bool values for CanJump property? No, because abilities can be deactivated not in that order in which they were activated. I need a way to seperate ability logic that prevent the Rabbit from jumping from the Rabbit itself. One possible solution for this is making special checking event: class Rabbit { class CheckJumpEventArgs : EventArgs { public bool Veto { get; set; } } public event EventHandler<CheckJumpEvent> OnCheckJump; void Jump() { var args = new CheckJumpEventArgs(); if (OnCheckJump != null) OnCheckJump(this, args); if (!args.Veto) return; ... } } But it's a lot of code! A real Rabbit class would have a lot of properties like this (health and speed attributes, etc). I'm thinking of borrowing something from MVVM pattern where you have all the properties and methods of an object implemented in a way where they can be easily extended from outside. Then I want to use it like this: class FreezeAbility { void ActivateAbility() { _rabbit.CanJump.Push(ReturnFalse); } void DeactivateAbility() { _rabbit.CanJump.Remove(ReturnFalse); } // should be implemented as instance member // so it can be "unsubscribed" bool ReturnFalse(bool previousValue) { return false; } } Is this approach good? What also should I consider? What are other suitable options and patterns? Any ready to use solutions? UPDATE The question is not about how to add different behaviors to an object dynamically but how its (or its behavior) implementation can be extended with external logic. I don't need to add a different behavior but I need a way to modify an exitsing one and I also need a possibiliity to undo changes.

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