Tutorial by Examples: an

Simple Example (centering a single element) HTML <div class="aligner"> <div class="aligner-item">…</div> </div> CSS .aligner { display: flex; align-items: center; justify-content: center; } .aligner-item { max-width: 50%; /*for d...

This bidirectional mapping requires the mappedBy attribute on the OneToMany association and the inversedBy attribute on the ManyToOne association. A bidirectional relationship has both an owning and inverse side. OneToMany relationships can use join tables, so you have to specify an owning side. Th...

HTML <div class="wrap"> <img src="http://lorempixel.com/400/200/" /> </div> CSS .wrap { height: 50px;/* max image height */ width: 100px; border: 1px solid blue; text-align: center; } .wrap:before { content:""; di...

A Button directive which accepts an @Input() to specify a click limit until the button gets disabled. The parent component can listen to an event which will be emitted when the click limit is reached via @Output: import { Component, Input, Output, EventEmitter } from '@angular/core'; @Component(...

If you want to convert the content of a part into a domain object (e.g. a User or Account or Address), then the process is very simple: It is possible to upload multiple parts, each with a different name. For each part name, you will need one parameter annotated with @RequestPart, whose name matche...

Creating a custom ImplicitNamingStrategy allows you to tweak how Hibernate will assign names to non-explicitly named Entity attributes, including Foreign Keys, Unique Keys, Identifier Columns, Basic Columns, and more. For example, by default, Hibernate will generate Foreign Keys which are hashed an...

The following code can be entered in a Tcl shell (tclsh), or into a script file and run through a Tcl shell: puts "Hello, world!" It gives the string argument Hello, world! to the command puts. The puts command writes its argument to standard out (your terminal in interactive mode) an...

The function angular.merge takes all the enumerable properties from the source object to deeply extend the destination object. The function returns a reference to the now extended destination object angular.merge(destination, source) Examples angular.merge({}, {}) // {} angular.merge({name...

The function angular.isDefined tests a value if it is defined angular.isDefined(someValue) This is the equivalent of performing value !== undefined; // will evaluate to true is value is defined Examples angular.isDefined(42) // true angular.isDefined([1, 2]) // true angular.isDefined(un...

The angular.isDate function returns true if and only if the object passed to it is of the type Date. angular.isDate(value) Examples angular.isDate("lone star") // false angular.isDate(new Date()) // true

The angular.isNumber function returns true if and only if the object or value passed to it is of the type Number, this includes +Infinity, -Infinity and NaN angular.isNumber(value) This function will not cause a type coercion such as "23" == 23 // true Examples angular.isNumber...

Passing a context with a timeout (or with a cancel function) to a long running function can be used to cancel that functions work: ctx, _ := context.WithTimeout(context.Background(), 200*time.Millisecond) for { select { case <-ctx.Done(): return ctx.Err() default: ...

The components in angularJS can be visualised as a custom directive (< html > this in an HTML directive, and something like this will be a custom directive < ANYTHING >). A component contains a view and a controller. Controller contains the business logic which is binded with an view , w...

Get the window height and width var width = window.innerWidth var height = window.innerHeight

3.0 let someString = " Swift Language \n" let trimmedString = someString.stringByTrimmingCharactersInSet(NSCharacterSet.whitespaceAndNewlineCharacterSet()) // "Swift Language" Method stringByTrimmingCharactersInSet returns a new string made by removing from both ends of t...

SleekXMPP (Python) import sleekxmpp client = sleekxmpp.Client("[email protected]", "password") client.connect() client.process(blocking=False) client.send_message(mto="[email protected]", mbody=self.msg) Smack (Java / Android) XMPPTCPConnection connectio...

Early Bound (with a reference to Microsoft Scripting Runtime) Sub EnumerateFilesAndFolders( _ FolderPath As String, _ Optional MaxDepth As Long = -1, _ Optional CurrentDepth As Long = 0, _ Optional Indentation As Long = 2) Dim FSO As Scripting.FileSystemObject Set ...

Declaring an array is very similar to declaring a variable, except you need to declare the dimension of the Array right after its name: Dim myArray(9) As String 'Declaring an array that will contain up to 10 strings By default, Arrays in VBA are indexed from ZERO, thus, the number inside the par...

Split Function returns a zero-based, one dimensional array containing a specified number of substrings. Syntax Split(expression [, delimiter [, limit [, compare]]]) PartDescriptionexpressionRequired. String expression containing substrings and delimiters. If expression is a zero-length string(&q...

When using non-lazy translation, strings are translated immediately. >>> from django.utils.translation import activate, ugettext as _ >>> month = _("June") >>> month 'June' >>> activate('fr') >>> _("June") 'juin' >>> a...