Tutorial by Examples: ed

You can see the running demo by clicking here. HTML: <p> <span>Counter State</span><br /> (<em>Will increase each minute</em>): <p> <span id="counter-state" style="font-weight: bolder"></span> </p> &l...

Active Record Transactions can be applied to Model classes as well as Model instances, the objects within the transaction block need not all be instances of same class. This is because transactions are per-database connection, not per-model. For example: User.transaction do account.save! prof...

Using Oracle SQL’s NVL2() function, you can create a display column which contains one value if a field contains data and another value if a field does not contain data. For example, in an Entity search, turn the presence of a primary e-mail address into a text display column: NVL2( {email} , 'YES...

Below is a single hidden layer Multilayer Perceptron (MLP) using nested scoping of variables. def weight_variable(shape): return tf.get_variable(name="weights", shape=shape, initializer=tf.zeros_initializer(dtype=tf.float32)) def bias_variable(shape): ...

Firebase handles notifications differently when the app is in background (killed process) and when in foreground (active). When your app is in the background, notification messages are displayed in the system tray, and onMessageReceived is not called. For notification messages with a data payload...

A typedef declaration has the same syntax as a variable or function declaration, but it contains the word typedef. The presence of typedef causes the declaration to declare a type instead of a variable or function. int T; // T has type int typedef int T; // T is an alias for int int A[1...

The rule that typedef declarations have the same syntax as ordinary variable and function declarations can be used to read and write more complex declarations. void (*f)(int); // f has type "pointer to function of int returning void" typedef void (*f)(int); // f is an alias for &...

The typedef keyword is a specifier, so it applies separately to each declarator. Therefore, each name declared refers to the type that that name would have in the absence of typedef. int *x, (*p)(); // x has type int*, and p has type int(*)() typedef int *x, (*p)(); // x is an alias for in...

<http:listener-config name="HTTP_Listener_Configuration" host="localhost" port="${http.port}" doc:name="HTTP Listener Configuration"/> <db:mysql-config name="MySQL_Configuration" host="${db.host}" port="${db.port}"...

Run the following command one by one: npm install -g vulcanize crisper Use Vulcanize: Crunches all the HTML import files into a single file Crisper: Extracts inline js to its own file Note: Ubuntu users may need to prefix the above command with sudo.

In your custom application class, override the onCreate() method, add the line below: CleverTapAPI.setDebugLevel(1);

Because Boxes implement the Deref<Target=T>, you can use boxed values just like the value they contain. let boxed_vec = Box::new(vec![1, 2, 3]); println!("{}", boxed_vec.get(0)); If you want to pattern match on a boxed value, you may have to dereference the box manually. struct...

Let's say you have already created the custom Test Work Orders screen to manage test work orders in your Acumatica ERP application: There is already NoteID field declared in the TestWorkOrder DAC, managed on the Test Work Orders screen: [Serializable] public class TestWorkOrder : IBqlTable { ...

// logger middlerware that logs time taken to process each request func Logger(h http.Handler) http.Handler { return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { startTime := time.Now() h.ServeHttp(w,r) endTime := time.Since(startTime) log...

Usually output of a command goes to the terminal. Using the concept of Output redirection, the output of a command can be redirected to a file. So insted of displaying the output to the terminal it can be send to a file. '>' character is used for output redirection. $ pwd > file1 $ cat file...

The commands normally take their input from the standard input device keyboard. Using Input redirection concept, we can have their input redirected from a file. To redirect standard input from a file instead of the keyboard, the '<' character is used. $ cat file1 monday tuesday wednsday th...

type state_t is (START, READING, WRITING); -- user-defined enumerated type

Is raised when you tried to use a variable, method or function that is not initialized (at least not before). In other words, it is raised when a requested local or global name is not found. It's possible that you misspelt the name of the object or forgot to import something. Also maybe it's in anot...

Opening a stream fopen opens a file stream handle, which can be used with various functions for reading, writing, seeking and other functions on top of it. This value is of resource type, and cannot be passed to other threads persisting its functionality. $f = fopen("errors.log", "a...

public class Person { private final String salutation; private final String firstName; private final String middleName; private final String lastName; private final String suffix; private final Address address; private final boolean isFemale; private final boolean isEmployed; private final ...