JavaScript: client-side vs. server-side validation

JavaScript: client-side vs. server-side validation

Which is better to do client side or server side validation?In our situation we are using jQuery and MVC. JSON data to pass between our View and Controller. A lot of the validation I do is validating data as users enter it.For example I u

How do I combine a background-image and CSS3 gradient on the same element?

How do I combine a background-image and CSS3 gradient on the same element?

How do I use CSS3 gradients for my background-color and then apply a background-image to apply some sort of light transparent texture? 1:Multiple backgrounds!body { background: #eb01a5; background-image: url("IMAGE_URL"); /* fallback *

Select rows which are not present in other table

Select rows which are not present in other table

I've got two postgresql tables: table name column names----------- ------------------------login_log ip | etc.ip_location ip | location | hostname | etc.I want to get every IP address from login_log which doesn't have a row

Sending and Receiving SMS and MMS in Android (pre Kit Kat Android 4.4)

Sending and Receiving SMS and MMS in Android (pre Kit Kat Android 4.4)

I have figured out how to send and receive SMS messages. To send SMS messages I had to call the sendTextMessage() and sendMultipartTextMessage() methods of the SmsManager class. To receive SMS messages, I had to register a receiver in the

What is the rationale for all comparisons returning false for IEEE754 NaN values?

What is the rationale for all comparisons returning false for IEEE754 NaN values?

Why do comparisons of NaN values behave differently from all other values?That is, all comparisons with the operators ==, <=, >=, <, > where one or both values is NaN returns false, contrary to the behaviour of all other values.I suppose th

printf anomaly after “fork()”

printf anomaly after “fork()”

OS: Linux, Language: pure CI'm moving forward in learning C programming in general, and C programming under UNIX in a special case.I detected a strange (for me) behaviour of the printf() function after using a fork() call. Code#include

Decode HTML entities in Python string?

Decode HTML entities in Python string?

I'm parsing some HTML with Beautiful Soup 3, but it contains HTML entities which Beautiful Soup 3 doesn't automatically decode for me:>>> from BeautifulSoup import BeautifulSoup>>> soup = BeautifulSoup("

£682m

")>>> text = soup.find("p

Select rows from a DataFrame based on values in a column in pandas

Select rows from a DataFrame based on values in a column in pandas

How to select rows from a DataFrame based on values in some column in pandas?In SQL I would use: select * from table where colume_name = some_value. I tried to look at pandas documentation but did not immediately find the answer. 1:To se

Is segmentation fault actual undefined behavior when we refer to a non-static data-member

Is segmentation fault actual undefined behavior when we refer to a non-static data-member

I had read the following rule and I've been trying to write an example, which reflects one.The rule is from 3.8/5 N3797: Before the lifetime of an object has started but after the storage which the object will occupy has been allocated or

How to style a  dropdown with CSS only without JavaScript?

How to style a dropdown with CSS only without JavaScript?

Is there a CSS-only way to style a form as much as humanly possible, without any JavaScript. What are the properties I can use to do so in CSS?This code needs to be compatible with all major brow

What is array decaying?

What is array decaying?

What is decaying of an array? Is there any relation to array pointers? 1:It's said that arrays "decay" into pointers. A C++ array declared as int numbers [5] cannot be re-pointed, i.e. you can't say numbers = 0x5a5aff23. More importantl

Is it considered good style to dereference `new` pointer?

Is it considered good style to dereference `new` pointer?

To avoid keep having to use -> and instead work directly with the object, is it acceptable practice to do:obj x = *(new obj(...));...delete &obj; 1:This is not just poor practice, but:Leaking memory (most likely, unless you are using so

equals(…) and equalsIgnoreCase(…)

equals(…) and equalsIgnoreCase(…)

Why do we have equals() and equalsIgnoreCase() as two different methods, when equals() could have been overloaded with a special ignoreCase argument to provide equalsIgnoreCase() functionality? 1:The method equals() is inherited from Obj

SQLite database maximum storage capacity

SQLite database maximum storage capacity

I have a small question about storing data on a SQLite database. How many records in an SQLite database can we maximally store? Is there any limitation? If the data goes beyond this limitation what type of error does it give? Will the whole

Swift - How to set initial value for NSUserDefaults

Swift - How to set initial value for NSUserDefaults

I have a switch called soundSwitch, I am saving the state of the button using an user default as such:@IBAction func soundsChanged(sender: AnyObject) { if soundSwitch.on{ defaults.setBool(true, forKey: "SoundActive")

C++11 lambdas can access my private members. Why?

C++11 lambdas can access my private members. Why?

Consider this piece of code:class shy {private: int dont_touch; // Private memberpublic: static const shy object;};const shy shy::object = []{ shy obj; obj.dont_touch = 42; // Accessing a private member; compiles; WHY? r

How do you find a float's nearest non-equal value? [duplicate]

How do you find a float's nearest non-equal value? [duplicate]

This question already has an answer here: How to alter a float by its smallest increment (or close to it)? 7 answers A float (a.k.a. single) value is a

Is there no standard (Either a) monad instance?

Is there no standard (Either a) monad instance?

I was under the impression that there was an instance for Either a somewhere, but I can't seem to find it. I have tried importing Control.Monad, Control.Monad.Instances and Data.Either as shownmodule Main whereimport Control.Monadimport Dat

Static keyword in function parameter

Static keyword in function parameter

I've just found this function definition in some embedded code:float round_float_to_4(static float inputval);I'm familiar with other uses for static (global variables, functions and local variables), but this is the first time I see it as s

How to print an error message to standard error?

How to print an error message to standard error?

In UNIX, I'm supposed to write a Java file that will print "Exit 1" to the standard error, and then exit with a status of 1.Here is my approach..System.err.println("EXIT 1");System.exit(1);Is this what I'm supposed to do?If so, how am I sup

How do you handle strings in C++?

How do you handle strings in C++?

Which is your favorite way to go with strings in C++? A C-style array of chars? Or wchar_t? CString, std::basic_string, std::string, BSTR or CComBSTR?Certainly each of these has its own area of application, but anyway, which is your favorit

Why does a perfect forwarding function have to be templated?

Why does a perfect forwarding function have to be templated?

Why is the following code valid:templatevoid foo(T1 &&arg) { bar(std::forward(arg)); }std::string str = "Hello World";foo(str); // Valid even though str is an lvaluefoo(std::string("Hello World")); // Valid because literal is rvalueBut not:

How can I construct a java.security.PublicKey object from a base64 encoded string?

How can I construct a java.security.PublicKey object from a base64 encoded string?

I have a bse64encoded string Public key from external source (Android Store) and I need to use it to verify signed content. How can I convert the string into an instance of the java.security.PublicKey interface. I am on Java 6 if that makes

How do I create a CSV file using Perl?

How do I create a CSV file using Perl?

I want to create a CSV file using Perl and write some data to it. Is there any way to do that? 1:You could use Class:CSV.use Class::CSV;my $csv = Class::CSV->new( fields => [qw/userid username/]);$csv->add_line([2063, 'testuser'

JPA concat operator

JPA concat operator

Is there a JPA concat operator for string concatenation?I know there is a JPA CONCAT function, however its ugly to use for concatenating multiple strings.CONCAT(CONCAT(CONCAT(cola,colb),colc),cold)Vendors like Oracle offer || some other lik