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Welcome to Findnerd. Today we are going to discuss basic concepts of Ruby. In Ruby almost every thing is object. Objects deal as fundamental building blocks for Ruby. Every thing which you manipulate or return after manipulation, is an object.
NSPredicate is a query language. It provides a natural language interface to define logical conditions. While working with large data sets, sometimes it is essential to filter the data. So, the filtering and sorting of data can be done with NSPredica
Hello Reader!
If you are designing a html form and wants to make it validate for accepting only digits as input then you can see the code below for the same:-
You can create the html form like this way:-
Validate Price
<
Let’s talk about a constructor. It is actually a function to serve the purpose of using as a constructor. You can write a function to use it as a constructor or call it as a normal function, or use it both ways.
You can easily perform the task of cr
If you are using ImagePickerController and wants to get selected Image location then use below code:-
- (void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{
// Get the asset url
Positive Testing and Negative Testing
Software testing is process of verifying and validating the software or application and checks whether it is working as expected. The intent is to find defects and improve the product quality. There are two
I remember i was working on a project where there was a large set of data in the resultset and on the basis of that data i have to update some other model but i was unable to do it in batches due to some reason. So i was searching for a method in rub
Hello Reader's if you are making the validation of text box to set it's max and min range, Then by using javascript you can do it faster.
Lets see the example as below:-
<!DOCTYPE html>
<html>
<body>
<p>Enter a number and c
Aggregrate function is a function which returns single value by performing a calculation on a set of values.MySQL provides many aggregate functions such as AVG, COUNT, SUM, MIN, MAX, etc.
MIN returns the smallest value in a given column
MIN(expres
Amplitude-shift keying (ASK) is a form of amplitude modulation represents the digital data as variation in the wave. In an ASK system, the binary symbol 1 is represented by transmitted a carrier wave duration of T seconds.
If the signa
