To add a component with a selector [prefix]-user-list, run:
$ ng g c user-list
installing component
create src/app/user-list/user-list.component.css
create src/app/user-list/user-list.component.html
create src/app/user-list/user-list.component.spec.ts
create src/app/use...
To split pane vertically, do a prefix followed by %
ie, by default ctrlb followed by %
To split pane horizontally, do a prefix followed by "
ie, by default ctrlb followed by "
To add a directive with a selector [prefix]Highlight, run:
$ ng g d highlight
installing directive
create src/app/highlight.directive.spec.ts
create src/app/highlight.directive.ts
update src/app/app.module.ts
To prevent prefix usage add --prefix false or -p false flag
...
To add a service with a name UserService, run:
$ ng g s user
installing service
create src/app/user.service.spec.ts
create src/app/user.service.ts
To prevent .spec files creation add --spec false or -sp false flag
$ ng g s user --spec false
installing service
...
To add a pipe with a name searchByName, run:
$ ng g p search-by-name
installing pipe
create src/app/search-by-name.pipe.spec.ts
create src/app/search-by-name.pipe.ts
update src/app/app.module.ts
To prevent .spec files creation add --spec false or -sp false flag
$ ng ...
To add a module called GuestModule, run:
$ ng g m guest
installing module
create src/app/guest/guest.module.ts
To enable .spec files creation add --spec or -sp flag
$ ng g m guest --spec
installing module
create src/app/guest/guest.module.spec.ts
create src/app/...
The default configuration <C-b> is not the easiest to use. It'd be better to use something like ctrla. To do so, add this to tmux.conf
# remap prefix from 'C-b' to 'C-a'
unbind C-b
set-option -g prefix C-a
bind-key C-a send-prefix
Instead of defining URL endpoints for each data resource, in GraphQL you define a single endpoint that accepts GraphQL queries. Unlike traditional database query languages, GraphQL Query Language (GQL) is a projection of data returned by a root level query. The GraphQL schema will define the data mo...
Let's go through the problem first. Have a look on the code below:
public class BankAccount
{
public BankAccount() {}
public string AccountNumber { get; set; }
public decimal AccountBalance { get; set; }
public decimal CalculateInterest()
{
// Co...
Here, we try to explain OCP using codebase. First we'll show a scenario that violate OCP and then we'll remove that violation.
Area Calculation (OCP violation Code) :
public class Rectangle{
public double Width {get; set;}
public double Height {get; set;}
}
public class Circle{
public do...
If your Internet connection is provided via a proxy Maven will not be able to download jars from remote repositories - a common problem faced by companies.
To solve this, Maven needs to be provided the details and credentials of the proxy by going to {Maven install location} → conf → settings.xml. ...
Renaming a variable or class is usually a tedious task, by searching for all the locations where it is used. This can be significantly speeded up by highlighting the word, pressing Alt+Shift+R and then typing the new word. Eclipse will automatically rename the word in every file where it is called.
...
Ordered broadcasts are used when you need to specify a priority for broadcast listeners.
In this example firstReceiver will receive broadcast always before than a secondReceiver:
final int highPriority = 2;
final int lowPriority = 1;
final String action = "action";
// intent filter ...
To understand Dependency Inversion Principle (DIP) we need to clear concept about Inversion Of Control(IOC) and Dependency Injection(DI). So here we discuss all about the terms with Dependency Inversion Principle (DIP).
Inversion Of Control(IOC) :
The control or logic which is not the part of t...
Introduction
SRP can be defined as “a class handles only one responsibility”. This is a very short definition for something influential on to the other principles of S.O.L.I.D. I believe that if we get this right, it will have a positive knock-on effect on the upcoming principles, so let’s get star...
Here we give an example of ISP violation and then refactor that violation. Without talking unnecessary things let's jump into the code.
ISP violation :
public interface IMessage{
IList<string> ToAddress {get; set;}
IList<string> BccAddresses {get; set;}
string MessageBody {get; s...
A docstring is a multi-line comment used to document modules, classes, functions and methods. It has to be the first statement of the component it describes.
def hello(name):
"""Greet someone.
Print a greeting ("Hello") for the person with the given name.
&...
First Select Or Create a database.
> use mydb
switched to db mydb
Using db.createCollection("yourCollectionName") method you can explicitly create Collection.
> db.createCollection("newCollection1")
{ "ok" : 1 }
Using show collections command see all col...
