Questions Tagged with #Serialization

Serialization is the process by which data-structures are converted into a format that can be easily stored or transmitted and subsequently reconstructed.

How to write and read java serialized objects into a file

I am going to write multiple objects to a file and then retrieve them in another part of my code. My code has no error, but it is not working properly. Could you please help me find what is wrong abou..

How to serialize a JObject without the formatting?

I have a JObject (I'm using Json.Net) that I constructed with LINQ to JSON (also provided by the same library). When I call the ToString() method on the JObject, it outputs the results as formatted J..

JSONResult to String

I have a JsonResult that is working fine, and returning JSON from some POCO's. I want to save the JSON as a string in a DB. public JsonResult GetJSON() { JsonResult json = new JsonResult ..

How to Deserialize XML document

How do I Deserialize this XML document: <?xml version="1.0" encoding="utf-8"?> <Cars> <Car> <StockNumber>1020</StockNumber> <Make>Nissan</Make> .. local class incompatible:

I created client and server and then added a class in client side for serializing purposes, then simply just went to the folder of the client in my hard drive and copy paste it to the server correpond..

Cannot deserialize the JSON array (e.g. [1,2,3]) into type ' ' because type requires JSON object (e.g. {"name":"value"}) to deserialize correctly

I have this JSON: [ { "Attributes": [ { "Key": "Name", "Value": { "Value": "Acc 1", "Values": [ ..

Understanding passport serialize deserialize

How would you explain the workflow of Passport's serialize and deserialize methods to a layman. Where does go after passport.serializeUser has been called? We are calling passport.deserializ..

Converting an object to a string

How can I convert a JavaScript object into a string? Example: var o = {a:1, b:2} console.log(o) console.log('Item: ' + o) Output: Object { a=1, b=2} // very nice readable output :) Item: [ob..

How to generate serial version UID in Intellij

When I used Eclipse it had a nice feature to generate serial version UID. But what to do in IntelliJ? How to choose or generate identical serial version UID in IntelliJ? And what to do when you mo..

Convert a JSON string to object in Java ME?

Is there a way in Java/J2ME to convert a string, such as: {name:"MyNode", width:200, height:100} to an internal Object representation of the same, in one line of code? Because the current method ..

.NET NewtonSoft JSON deserialize map to a different property name

I have following JSON string which is received from an external party. { "team":[ { "v1":"", "attributes":{ "eighty_min_score":"", "home_or_away":"h..

Ruby objects and JSON serialization (without Rails)

I'm trying to understand the JSON serialization landscape in Ruby. I'm new to Ruby. Is there any good JSON serialization options if you are not working with Rails? That seems to be where this answer..

Saving an Object (Data persistence)

I've created an object like this: = 'banana' company1.value = 40 I would like to save this object. How can I do that?..

Is it possible to serialize and deserialize a class in C++?

Is it possible to serialize and deserialize a class in C++? I've been using Java for 3 years now, and serialization / deserialization is fairly trivial in that language. Does C++ have similar feature..

<Django object > is not JSON serializable

I have the following code for serializing the queryset; def render_to_response(self, context, **response_kwargs): return HttpResponse(json.simplejson.dumps(list(self.get_queryset())), ..

Jackson - How to process (deserialize) nested JSON?

{ vendors: [ { vendor: { id: 367, name: "Kuhn-Pollich", company_id: 1, } }, { vendor: { id: 374, name: "Sawayn-Hermann", ..

Best way to save a trained model in PyTorch?

I was looking for alternative ways to save a trained model in PyTorch. So far, I have found two alternatives. to save a model and torch.load() to load a model. model.state_dict() to sav.. invalid stream header: 7371007E

I have a client Server application which communicate using objects. when I send only one object from the client to server all works well. when I attempt to send several objects one after another on th..

how to do file upload using jquery serialization

So I have a form and I'm submitting the form through ajax using jquery serialization function serialized = $(Forms).serialize(); $.ajax({ type : "POST", cach..

XML serialization in Java?

What is the Java analogue of .NET's XML serialization?..

Deserialize from string instead TextReader

I want to change my code from: string path = @"c:\Directory\test.xml"; XmlSerializer s = new XmlSerializer(typeof(Car)); TextReader r = new StreamReader(path); Car car = (Car)s.Deserialize(r); r.Cl..

Parcelable encountered IOException writing serializable object getactivity()

so I am getting this in logcat: java.lang.RuntimeException: Parcelable encountered IOException writing serializable object (name = com.resources.student_list.Student) I know this means that my stud..

Exception: Serialization of 'Closure' is not allowed

So I am not sure exactly what I would have to show you guys, how ever if you need more code please do not hesitate to ask: So this method will set up the initMailer for Zend with in our application: ..

Entity framework self referencing loop detected

I have a strange error. I'm experimenting with a .NET 4.5 Web API, Entity Framework and MS SQL Server. I've already created the database and set up the correct primary and foreign keys and relationshi..

Can Json.NET serialize / deserialize to / from a stream?

I have heard that Json.NET is faster than DataContractJsonSerializer, and wanted to give it a try... But I couldn't find any methods on JsonConvert that take a stream rather than a string. For de..

How to deserialize a JObject to .NET object

I happily use the Newtonsoft JSON library. For example, I would create a JObject from a .NET object, in this case an instance of Exception (might or might not be a subclass) if (result is Exception)..

Convert a python dict to a string and back

I am writing a program that stores data in a dictionary object, but this data needs to be saved at some point during the program execution and loaded back into the dictionary object when the program i..

How to make a class JSON serializable

How to make a Python class serializable? A simple class: class FileItem: def __init__(self, fname): self.fname = fname What should I do to be able to get output of: >>> imp..

Serializing to JSON in jQuery

I need to serialize an object to JSON. I'm using jQuery. Is there a "standard" way to do this? My specific situation: I have an array defined as shown below: var countries = new Array(); countries[0..

jQuery to serialize only elements within a div

I would like to get the same effect as jQuery.serialize() but I would like to return only the child elments of a given div. Sample result : single=Single2&multiple=Multiple&radio=radio1 ..

jQuery: serialize() form and other parameters

Is it possible to send form elements (serialized with .serialize() method) and other parameters with a single AJAX request? Example: $.ajax({ type : 'POST', url : 'url', data : { ..

How to send objects through bundle

I need to pass a reference to the class that does the majority of my processing through a bundle. The problem is it has nothing to do with intents or contexts and has a large amount of non-primitive ..

Convert Dictionary to JSON in Swift

I have create the next Dictionary: var postJSON = [ids[0]:answersArray[0], ids[1]:answersArray[1], ids[2]:answersArray[2]] as Dictionary and I get: [2: B, 1: A, 3: C] So, how can I convert it to.. serialize/deserialize derived types? (newtonsoft) I am looking through the documentation but I can't find anything on this or the best way to do it. public class Base { public string Name; } public class Derived : Base { ..

Deserialize JSON array(or list) in C#

here is the basic code: public static string DeserializeNames() { jsonData = "{\"name\":[{\"last\":\"Smith\"},{\"last\":\"Doe\"}]}"; JavaScriptSerializer ser = new JavaScriptSerializer(); ..

When should we implement Serializable interface?

public class Contact implements Serializable { private String name; private String email; public String getName() { return name; } public void setName(String name) { ..

What is the difference between Serialization and Marshaling?

I know that in terms of several distributed techniques (such as RPC), the term "Marshaling" is used but don't understand how it differs from Serialization. Aren't they both transforming obje..

laravel Unable to prepare route ... for serialization. Uses Closure

When I clear caches in my Laravel 5.2 project, I see this error message: [LogicException] Unable to prepare route [panel] for serialization. Uses Closure. I think that it's related with a route ..

Gson: How to exclude specific fields from Serialization without annotations

I'm trying to learn Gson and I'm struggling with field exclusion. Here are my classes public class Student { private Long id; private String firstName = "Ph..

Converting Stream to String and back...what are we missing?

I want to serialize objects to strings, and back. We use protobuf-net to turn an object into a Stream and back, successfully. However, Stream to string and back... not so successful. After going thr..

What is deserialize and serialize in JSON?

I have seen the terms "deserialize" and "serialize" with JSON. What do they mean?..

converting Java bitmap to byte array

Bitmap bmp = intent.getExtras().get("data"); int size = bmp.getRowBytes() * bmp.getHeight(); ByteBuffer b = ByteBuffer.allocate(size); bmp.copyPixelsToBuffer(b); byte[] bytes = new b..

What are Transient and Volatile Modifiers?

Can someone explain what the transient and volatile modifiers mean in Java?..

Is it possible to deserialize XML into List<T>?

Given the following XML: <?xml version="1.0"?> <user_list> <user> <id>1</id> <name>Joe</name> </user> <user> <id>..

How can I display a JavaScript object?

How do I display the content of a JavaScript object in a string format like when we alert a variable? The same formatted way I want to display an object...

Best way to serialize/unserialize objects in JavaScript?

I have many JavaScript objects in my application, something like: function Person(age) { this.age = age; this.isOld = function (){ return this.age > 60; } } // before serialize..

Java: object to byte[] and byte[] to object converter (for Tokyo Cabinet)

I need to convert objects to a byte[] to be stored in the Tokyo Cabinet key-value store. I also need to unbyte the byte[] to an Object when reading from the key-value store. Are there any packages ou..

Converting any object to a byte array in java

I have an object of type X which I want to convert into byte array before sending it to store in S3. Can anybody tell me how to do this? I appreciate your help...

What is a serialVersionUID and why should I use it?

Eclipse issues warnings when a serialVersionUID is missing. The serializable class Foo does not declare a static final serialVersionUID field of type long What is serialVersionUID and why is..

Converting between strings and ArrayBuffers

Is there a commonly accepted technique for efficiently converting JavaScript strings to ArrayBuffers and vice-versa? Specifically, I'd like to be able to write the contents of an ArrayBuffer to localS..

Java to Jackson JSON serialization: Money fields

Currently, I'm using Jackson to send out JSON results from my Spring-based web application. The problem I'm having is trying to get all money fields to output with 2 decimal places. I wasn't able to ..

C# JSON Serialization of Dictionary into {key:value, ...} instead of {key:key, value:value, ...}

Is it possible to serialize a .Net Dictionary<Key,Value> into JSON with DataContractJsonSerializer that is of the format: { key0:value0, key1:value1, ... } I use Dictionary <K,V>,..

What is object serialization?

What is meant by "object serialization"? Can you please explain it with some examples? ..

How do I copy a hash in Ruby?

I'll admit that I'm a bit of a ruby newbie (writing rake scripts, now). In most languages, copy constructors are easy to find. Half an hour of searching didn't find it in ruby. I want to create a copy..

How do you do a deep copy of an object in .NET?

I want a true deep copy. In Java, this was easy, but how do you do it in C#?..

What is [Serializable] and when should I use it?

I found out that some classes use the [Serializable] attribute. What is it? When should I use it? What kinds of benefits will I get? ..

Java serialization - local class incompatible

I've got a public class, which implements Serializable, that is extended by multiple other classes. Only those subclasses were ever serialized before - never the super class. The super class had def..

Form submit with AJAX passing form data to PHP without page refresh

Can anyone tell me why this bit of code isn't working? <html> <head> <script src=""></script> <script> $(function (..

Deserialize JSON into C# dynamic object?

Is there a way to deserialize JSON content into a C# 4 dynamic type? It would be nice to skip creating a bunch of classes in order to use the DataContractJsonSerializer. ..

Serialize object to query string in JavaScript/jQuery

I'm trying to find information on how to serialize an object to query string format, but all my searches are drowning in results on how to go the other way (string/form/whatever to JSON). I have { o..

Task not serializable: when calling function outside closure only on classes not objects

Getting strange behavior when calling function outside of a closure: when function is in a object everything is working when function is in a class get : Task not serializable:

Simple working Example of in

I have the following simplified JSON string from a provider, its been a long time since I used Visual Studio and vb.Net, so I'm very rusty! { "Venue": { "ID": 3145, "Name": "Big Venue, Clap..

Biggest differences of Thrift vs Protocol Buffers?

What are the biggest pros and cons of Apache Thrift vs Google's Protocol Buffers?..

How can I ignore a property when serializing using the DataContractSerializer?

I am using .NET 3.5SP1 and DataContractSerializer to serialize a class. In SP1, they changed the behavior so that you don't have to include DataContract/DataMember attributes on the class and it will..

Using JsonConvert.DeserializeObject to deserialize Json to a C# POCO class

Here is my simple User POCO class: /// <summary> /// The User class represents a Coderwall User. /// </summary> public class User { /// <summary> /// A User's username. eg: ..

How to serialize object to CSV file?

I want to write a Object into CSV file. For XML we have XStream like this So if i want to convert object to CSV do we have any such library ? EDIT: I want to pass my list of Bean to a method which ..

Serializing/deserializing with memory stream

I'm having an issue with serializing using memory stream. Here is my code: /// <summary> /// serializes the given object into memory stream /// </summary> /// <param name="objectType"&..

How do I serialize a Python dictionary into a string, and then back to a dictionary?

How do I serialize a Python dictionary into a string, and then back to a dictionary? The dictionary will have lists and other dictionaries inside it...

Parsing JSON using

I'm trying to parse some JSON using the JSon.Net library. The documentation seems a little sparse and I'm confused as to how to accomplish what I need. Here is the format for the JSON I need to pars..

Serializing class instance to JSON

I am trying to create a JSON string representation of a class instance and having difficulty. Let's say the class is built like this: class testclass: value1 = "a" value2 = "b" A call to th..

NewtonSoft.Json Serialize and Deserialize class with property of type IEnumerable<ISomeInterface>

I am trying to move some code to consume ASP.NET MVC Web API generated Json data instead of SOAP Xml. I have run into a problem with serializing and deserializing properties of type: IEnumerable<..

How do I turn a C# object into a JSON string in .NET?

I have classes like these: class MyDate { int year, month, day; } class Lad { string firstName; string lastName; MyDate dateOfBirth; } And I would like to turn a Lad object into a ..

Convert an object to an XML string

I have got a class named WebserviceType I got from the tool xsd.exe from an XSD file. Now I want to deserialize an instance of an WebServiceType object to a string. How can I do this? The MethodC..

Submit form using AJAX and jQuery

It seems like this should be something built into jQuery without the need for more than a few lines of code, but I can't find the "simple" solution. Say, I have an HTML form: <form method="get" a..

How to get string objects instead of Unicode from JSON?

I'm using Python 2 to parse JSON from ASCII encoded text files. When loading these files with either json or simplejson, all my string values are cast to Unicode objects instead of string objects. ..

How to serialize an object into a string

I am able to serialize an object into a file and then restore it again as is shown in the next code snippet. I would like to serialize the object into a string and store into a database instead. Can a..

JSON.NET Error Self referencing loop detected for type

I tried to serialize POCO class that was automatically generated from Entity Data Model .edmx and when I used JsonConvert.SerializeObject I got the following error: Error Self referencing loop dete..

How do you serialize a model instance in Django?

There is a lot of documentation on how to serialize a Model QuerySet but how do you just serialize to JSON the fields of a Model Instance?..

How to save/restore serializable object to/from file?

I have a list of objects and I need to save that somewhere in my computer. I have read some forums and I know that the object has to be Serializable. But it would be nice if I can get an example. For ..

Fastest way to serialize and deserialize .NET objects

I'm looking for the fastest way to serialize and deserialize .NET objects. Here is what I have so far: public class TD { public List<CT> CTs { get; set; } public List<TE> TEs { ge..

MaxJsonLength exception in ASP.NET MVC during JavaScriptSerializer

In one of my controller actions I am returning a very large JsonResult to fill a grid. I am getting the following InvalidOperationException exception: Error during serialization or deserialization u..

How do I use a custom Serializer with Jackson?

I have two Java classes that I want to serialize to JSON using Jackson: public class User { public final int id; public final String name; public User(int id, String name) { this..

Why does writeObject throw and how do I fix it?

I have this exception and I don't understand why it would be thrown or, how I should handle it. try { os.writeObject(element); } catch (IOException e) { e.printStackTrace(); } Where elemen..

JSON.Net Self referencing loop detected

I have a mssql database for my website within 4 tables. When I use this: public static string GetAllEventsForJSON() { using (CyberDBDataContext db = new CyberDBDataContext()) { retur..

Serializing list to JSON

I am sending information between client and Django server, and I would like to use JSON to this. I am sending simple information - list of strings. I tried using django.core.serializers, but when I di..

How to repair a serialized string which has been corrupted by an incorrect byte count length?

I am using Hotaru CMS with the Image Upload plugin, I get this error if I try to attach an image to a post, otherwise there is no error: unserialize() [function.unserialize]: Error at offset The..

How to JSON serialize sets?

I have a Python set that contains objects with __hash__ and __eq__ methods in order to make certain no duplicates are included in the collection. I need to json encode this result set, but passing ev..

What is the difference between Serializable and Externalizable in Java?

What is the difference between Serializable and Externalizable in Java?..

Serializing and submitting a form with jQuery and PHP

I'm trying to send a form's data using jQuery. However, data does not reach the server. Can you please tell me what I'm doing wrong? My HTML form: <form id="contactForm" name="contactForm" method..

Java: JSON -> Protobuf & back conversion

I have an existing system, which is using protobuf-based communication protocol between GUI and server. Now I would like to add some persistence, but at the moment protobuf messages are straight conve..

Cannot deserialize the current JSON array (e.g. [1,2,3])

I am trying to read my JSON result. Here is my RootObject public class RootObject { public int id { get; set; } public bool is_default { get; set; } public string name { get; set; } public int quant..

TypeError: Object of type 'bytes' is not JSON serializable

I just started programming Python. I want to use scrapy to create a bot,and it showed TypeError: Object of type 'bytes' is not JSON serializable when I run the project. import json import codecs c..

Why when a constructor is annotated with @JsonCreator, its arguments must be annotated with @JsonProperty?

In Jackson, when you annotate a constructor with @JsonCreator, you must annotate its arguments with @JsonProperty. So this constructor public Point(double x, double y) { this.x = x; this.y = ..

JavaScriptSerializer.Deserialize - how to change field names

Summary: How do I map a field name in JSON data to a field name of a .Net object when using JavaScriptSerializer.Deserialize ? Longer version: I have the following JSON data coming to me from a serve..

@JsonProperty annotation on field as well as getter/setter

I have inherited a certain bit code that has the @JsonProperty annotation on getter/setters. The purpose is so that when the object is serialized using the Jackson library, the fields have that specif..

How to Serialize a list in java?

I would like to deep clone a List. for that we are having a method // apache commons method. This object should be serializable SerializationUtils.clone ( object ) so now to clone my List i should..

How do I PHP-unserialize a jQuery-serialized form?

Using $('#form').serialize(), I was able to send this over to a PHP page. Now how do I unserialize it in PHP? It was serialized in jQuery...

How do I serialize an object and save it to a file in Android?

Say I have some simple class and once it's instantiated as an object I want to be able to serialize its contents to a file, and retrieve it by loading that file at some later time... I'm not sure wher..

$(this).serialize() -- How to add a value?

currently I have the following: $.ajax({ type: 'POST', url: this.action, data: $(this).serialize(), }); This works fine, however I would like to add a value to data, so I tried $.ajax(..

form serialize javascript (no framework)

Wondering is there a function in javascript without jquery or any framework that allows me to serialize the form and access the serialized version?..

How to get JSON data from the URL (REST API) to UI using jQuery or plain JavaScript?

I have a URL "http://localhost:8888/api/rest/abc" which will give following json data. I wants to get this data in my UI using Jquery or java script. I'm trying this from couple of hours but I'm unabl..

System.Data.SqlClient.SqlException: Invalid object name 'dbo.Projects'

My MVC app is returning SqlExceptions when trying to access any table in my database. Exception Details: System.Data.SqlClient.SqlException: Invalid object name 'dbo.Projects'. My app us linq for th..

Loop X number of times

I'm working on my first PowerShell script and can't figure the loop out. I have the following, which will repeat $ActiveCampaigns number of times: Write-Host "Creating $PQCampaign1 Pre-Qualified Rep..

Verilog: How to instantiate a module

If I have a Verilog module 'top' and a verilog module 'subcomponent' how do I instantiate subcomponent in top? top: module top( input clk, input rst_n, input enable, ..

JPA CascadeType.ALL does not delete orphans

I am having trouble deleting orphan nodes using JPA with the following mapping @OneToMany (cascade = CascadeType.ALL, fetch = FetchType.EAGER, mappedBy = "owner") private List<Bikes> bikes; I..

file_put_contents - failed to open stream: Permission denied

I am trying to write a query to a file for debugging. The file is in database/execute.php. The file I want to write to is database/queries.php. I am trying to use file_put_contents('queries.txt', $qu..

SQL Server: Extract Table Meta-Data (description, fields and their data types)

I am trying to find a way to extract information about my tables in SQL Server (2008). The data I need needs to include the description of the table (filled from the Description property in the Proper..

socket.shutdown vs socket.close

I recently saw a bit of code that looked like this (with sock being a socket object of course): sock.shutdown(socket.SHUT_RDWR) sock.close() What exactly is the purpose of calling shutdown on the s..

Generating an MD5 checksum of a file

Is there any simple way of generating (and checking) MD5 checksums of a list of files in Python? (I have a small program I'm working on, and I'd like to confirm the checksums of the files)...

Colspan all columns

How can I specify a td tag should span all columns (when the exact amount of columns in the table will be variable/difficult to determine when the HTML is being rendered)? w3schools mentions you can u..

How can foreign key constraints be temporarily disabled using T-SQL?

Are disabling and enabling foreign key constraints supported in SQL Server? Or is my only option to drop and then re-create the constraints?..

CSS Input with width: 100% goes outside parent's bound

I am trying to make a login form constituted of two input fields with an inset padding, but those two fields always end up exceeding its parent's boundaries; the issue stems from the added inset paddi..

Switch to selected tab by name in Jquery-UI Tabs

If I have three tabs: <div id="tabs"> <ul> <li><a href="#sample-tab-1"><span>One</span></a></li> <li><a href="#sample-tab-..

Is there an equivalent to CTRL+C in IPython Notebook in Firefox to break cells that are running?

I've started to use the IPython Notebook and am enjoying it. Sometimes, I write buggy code that takes massive memory requirements or has an infinite loop. I find the "interrupt kernel" option sluggish..

Intellij JAVA_HOME variable

I started using Gradle and Intellij but I am having problems to configure Gradle's JVM. When I start a new Gradle project I am not allowed to define JVM as my JAVA_HOME variable. The following screens..

How to place div in top right hand corner of page

How do you float a div to the top right hand corner of a page using css? I want to float the topcorner div which is below: <p><a href="login.php">Log in</a></p> <div class..

How do I print out the contents of an object in Rails for easy debugging?

I think I'm trying to get the PHP equivalent of print_r() (print human-readable); at present the raw output is: ActiveRecord::Relation:0x10355d1c0 What should I do?..

What is the "N+1 selects problem" in ORM (Object-Relational Mapping)?

The "N+1 selects problem" is generally stated as a problem in Object-Relational mapping (ORM) discussions, and I understand that it has something to do with having to make a lot of database queries fo..

When do I need to do "git pull", before or after "git add, git commit"?

What is the right way? git add foo.js git commit foo.js -m "commit" git pull git push Or git pull git add foo.js git commit foo.js -m "commit" git push Or git add foo.js git pull git commit foo..

Determine SQL Server Database Size

SQL Server 2005/2008 Express edition has the limitation of 4 GB per database. As far as I known the database engine considers data only, thus excluding log files, unused space, and index size. Gettin..

reading external sql script in python

I am working on a learning how to execute SQL in python (I know SQL, not Python). I have an external sql file. It creates and inserts data into three tables 'Zookeeper', 'Handles', 'Animal'. Then I..

Using ListView : How to add a header view?

I looke at the ListView API and I saw the method: addHeaderView(View v) What I want to do is to have a layout above the list, is this possible ? I tried doing something like : EditText et=..

Do you use source control for your database items?

I feel that my shop has a hole because we don't have a solid process in place for versioning our database schema changes. We do a lot of backups so we're more or less covered, but it's bad practice to..

How do I check which version of NumPy I'm using?

How can I check which version of NumPy I'm using? (FYI this question has been edited because both the question and answer are not platform specific.)..

Javascript callback when IFRAME is finished loading?

I need to execute a callback when an IFRAME has finished loading. I have no control over the content in the IFRAME, so I can't fire the callback from there. This IFRAME is programmaticly created, and..

Using tr to replace newline with space

Have output from sed: 72-profile Those two strings should be merged into one and separated with space like: 72-profile Two..

Shorthand for if-else statement

I have some code with a lot of if/else statements similar to this: var name = "true"; if (name == "true") { var hasName = 'Y'; } else if (name == "false") { var hasName = 'N'; }; But is th..

How to get all child inputs of a div element (jQuery)

HTML: <div id="panel"> <table> <tr> <td><input id="Search_NazovProjektu" type="text" value="" /></td> </tr> <tr> <td>..

firefox proxy settings via command line

How do I change Firefox Proxy settings via command line on windows xp/2k? Thanks..

How to open a new tab using Selenium WebDriver

How can I open a new tab in the existing Firefox browser using Selenium WebDriver (a.k.a. Selenium 2)?..

Regex AND operator

Based on this answer Regular Expressions: Is there an AND operator? I tried the following on but was unable to get it to work. What am missing? Does javascript not support it? ..

How do I restart a program based on user input?

I'm trying to restart a program using an if-test based on the input from the user. This code doesn't work, but it's approximately what I'm after: answer = str(raw_input('Run again? (y/n): ')) if an..

What's the "Content-Length" field in HTTP header?

What does it mean? Byte count of encoded content string with encoding specified in header. Character count of content string. Especially in case of Content-Type: application/x-www-form-urlencoded...

Best way to convert text files between character sets?

What is the fastest, easiest tool or method to convert text files between character sets? Specifically, I need to convert from UTF-8 to ISO-8859-15 and vice versa. Everything goes: one-liners in you..

Best way to store a key=>value array in JavaScript?

What's the best way to store a key=>value array in javascript, and how can that be looped through? The key of each element should be a tag, such as {id} or just id and the value should be the nume..

Generating a drop down list of timezones with PHP

Most sites need some way to show the dates on the site in the users preferred timezone. Below are two lists that I found and then one method using the built in PHP DateTime class in PHP 5. I need he..

How to randomize (or permute) a dataframe rowwise and columnwise?

I have a dataframe (df1) like this. f1 f2 f3 f4 f5 d1 1 0 1 1 1 d2 1 0 0 1 0 d3 0 0 0 1 1 d4 0 1 0 0 1 The d1...d4 column is t..

What is the purpose of willSet and didSet in Swift?

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I want to rename the files in a directory to sequential numbers. Based on creation date of the files. For Example sadf.jpg to 0001.jpg, wrjr3.jpg to 0002.jpg and so on, the number of leading zeroes d..

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When reading a book for business objects, I came across the term- fact table and dimension table. I am trying to understand what is the different between Dimension table and Fact table? I read coup..

Include CSS and Javascript in my django template

I am a newbie in Django 1.5 and I have learn some basic things about it. My problem is , I am not able to include css and javascript in my template. I have read the documentation about it but as i hav..

Oracle Not Equals Operator

There are two not equals operator - != and <>. What's the difference between them? I heard that != is more efficient than other for comparing strings. Could anyone give a qualitative comment o..

How to style the option of an html "select" element?

Here's my HTML: <select id="ddlProducts" name="ddProducts"> <option>Product1 : Electronics </option> <option>Product2 : Sports </option> </select> I wa..

How can you customize the numbers in an ordered list?

How can I left-align the numbers in an ordered list? 1. an item // skip some items for brevity 9. another item 10. notice the 1 is under the 9, and the item contents also line up Change the char..

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What is the best approach for creating elements on the fly and being able to move them around? For example, let's say I want to create a rectangle, circle and polygon and then select those objects and..

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I am trying to send a GET message that contains strings with ampersands and can't figure how to escape the ampersand in the URL. Example: result => candy..

Count cells that contain any text

I want to count the cells that contain anything within a range. Any cell that contain text, or numbers or something else should do a plus one in my result-cell. I found this function, countif(range;..

Is there an embeddable Webkit component for Windows / C# development?

I've seen a few COM controls which wrap the Gecko rendering engine (GeckoFX, as well as the control shipped by Mozilla - mozctlx.dll). Is there a wrapper for Webkit that can be included in a .NET Winf..

How to extract Month from date in R

I am using the lubridate package and applying the month function to extract month from date. I ran the str command on date field and I got Factor w/ 9498 levels "01/01/1979","01/01/1980",..: 5305 1 ..

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I switched lecturers today and he stated using a weird code to me. (He said it's better to use .equals and when I asked why, he answered "because it is!") So here's an example: if (o1.equals(o2)) { ..

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I would like to change the color, fontsize and font weight of the text in a span element of the html page. I am using the following code: if(window.location.href.indexOf("test") > -1){ var se..

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I'm a Java EE-newbie. I want to test JSF and therefore made a simple program but can not deploy it. I get the following error message: cannot Deploy onlineshop-war deploy is failing=Error occurred du..

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Is it possible to change an array size after declaration? If not, is there any alternative to arrays? I do not want to create an array with a size of 1000, but I do not know the size of the array when..

How do I find where JDK is installed on my windows machine?

I need to know where JDK is located on my machine. On running Java -version in cmd, it shows the version as '1.6.xx'. To find the location of this SDK on my machine I tried using echo %JAVA_HOME% bu..

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I'm converting SQL from Teradata to SQL Server in Teradata, they have the format SELECT col1, col2 FROM table1 INTO @variable1, @variable2 In SQL Server, I found SET @variable1 = ( SELECT col1 ..

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Can someone give me a step by step description of how cookie based authentication works? I've never done anything involving either authentication or cookies. What does the browser need to do? What doe..

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How can a pull request on github be cancelled?..

Getting Image from URL (Java)

I am trying to read the following image But it is showing IIOException. Here is the code: Image image = null; URL url = new URL("

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Are there any forbidden characters in key names, for JavaScript objects or JSON strings? Or characters that need to be escaped? To be more specific, I'd like to use "$", "-" and space in key names...

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How do you print something to the console of Xcode, and is it possible to view the Xcode console from the app itself? Thanks!..

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I need the background image of a table cell to be aligned as Top in vertical side - Right in Horizontal But it is displaying as, Center in Vertical side ; Right in Horizontal Take a look a..

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OpenCV get pixel channel value from Mat image

Maybe I'm not looking hard enough, but everything seems to want me to use an array. Thus, how do I get the channel value for a particular pixel for foo if foo is something like Mat foo = imread("bar.p..

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Given the following code: var arr = [1,2,3,4,5]; var results: number[] = await (item): Promise<number> => { await callAsynchronousOperation(item); return item ..