Tutorial by Examples: me

Set SECKET_KEY, then flashing message in view function: from flask import Flask, flash, render_template app = Flask(__name__) app.secret_key = 'some_secret' @app.route('/') def index(): flash('Hello, I'm a message.') return render_template('index.html') Then render the messages...

The problem with type arguments being implicit becomes obvious once we have more than one. Which order do they come in? const :: a -> b -> a Does writing const @Int mean a is equal to Int, or is it b? In case we explicitly state the type parameters using a forall like const :: forall a b....

Refer the example here: https://github.com/NewtonJoshua/Azure-ADB2C-Angularjs-sample Azure AD B2C Azure AD B2C is a cloud identity management solution for your web and mobile applications. It is a highly available global service that scales to hundreds of millions of identities. Mobile app - ADAL...

The documentation of apply says the following: calls the specified function block with this value as its receiver and returns this value. While the kdoc is not so helpful apply is indeed an useful function. In layman's terms apply establishes a scope in which this is bound to the object you ca...

Camel's DSL (Domain Specific Language) is one of the features that makes Camel standout from other Integration frameworks. While some other frameworks also feature a DSL concept, typically in the form of a XML file, the DSL was in such cases always a custom based language. Camel offers multiple DSL...

The PXDBDateAndTime attribute and the PXDateAndTime attribute are designed to work with a DAC field of the Nullable<DateTime> (DateTime?) type and store both date and time value parts inside a single field: #region UsrDateAndTime public abstract class usrDateAndTimeAttribute : IBqlField { }...

The PXDBTime attribute is designed to work with a DAC field of the Nullable<DateTime> (DateTime?) type and store only the time part without date inside a DAC field: #region UsrTime public abstract class usrTime : IBqlField { } [PXDBTime(DisplayMask = "t", InputMask = "t&qu...

The PXDBTimeSpan attribute is designed to work with a DAC field of the Nullable<int> (int?) type and store time value inside a DAC field as the number of minutes passed since midnight: #region UsrTimeInt public abstract class usrTimeInt : IBqlField { } [PXDBTimeSpan(DisplayMask = "t...

The PXTimeList attribute is designed to work with a DAC field of the Nullable<int> (int?) type and store time span value inside a DAC field as a number of minutes: #region UsrTimeSpan public abstract class usrTimeSpan : IBqlField { } [PXDBInt] [PXTimeList] [PXUIField(DisplayName = &quo...

This is a weird approach most of the people don't know this even exist. CREATE TABLE AliasNameDemo(id INT,firstname VARCHAR(20),lastname VARCHAR(20)) INSERT INTO AliasNameDemo VALUES (1,'MyFirstName','MyLastName') SELECT * FROM (SELECT firstname + ' ' + lastname FROM A...

1. For Loop: CountriesName = ["India", "Canada", "America", "Iraq"] for country in CountriesName puts country end 2. Each Iterator: Same set of work can be done with each loop which we did with for loop. CountriesName = ["India", "C...

One can use the command-line launching facility is when one wants to customize some aspects of the way MySQL Workbench operates. MySQL Workbench has the following common command line options: --admin instance - Launch MySQL Workbench and load the server instance specified. --query connection - ...

Unfortunately, DOSKEY macro doesn't support comment, but there's a workaround. ;= Comment ;= Comment ;= Remember to end your comment with ;= ;=

var assert = require('assert'); describe('String', function() { describe('#split', function() { it('should return an array', function() { assert(Array.isArray('a,b,c'.split(','))) }); }); });

In Spark, a DataFrame is a distributed collection of data organized into named columns. It is conceptually equivalent to a table in a relational database or a data frame in R/Python, but with richer optimizations under the hood. DataFrames can be constructed from a wide array of sources such as stru...

The Take Method Takes elements up to a specified position starting from the first element in a sequence. Signature of Take: Public static IEnumerable<TSource> Take<TSource>(this IEnumerable<TSource> source,int count); Example: int[] numbers = { 1, 5, 8, 4, 9, 3, 6, 7, 2, 0 };...

Skips elements up to a specified position starting from the first element in a sequence. Signature of Skip: Public static IEnumerable Skip(this IEnumerable source,int count); Example int[] numbers = { 1, 5, 8, 4, 9, 3, 6, 7, 2, 0 }; var SkipFirstFiveElement = numbers.Take(5); Output: The ...

Cold observable implementation, emits true when TTS engine finishes speaking, starts speaking when subscribed. Notice that API level 21 introduces different way to perform speaking: public class RxTextToSpeech { @Nullable RxTTSObservableOnSubscribe audio; WeakReference<Context> contextR...

If you call plt.legend() or ax.legend() more than once, the first legend is removed and a new one is drawn. According the official documentation: This has been done so that it is possible to call legend() repeatedly to update the legend to the latest handles on the Axes Fear not, though: It ...

In order to clear the selection of those values which are selected using a Select2 drop down,we can use the empty() function. <select id="select2_example"> <option>Option1</option> <option>Option2</option> <option>Option3</option> </select&...