Tutorial by Examples: en

Events triggered by actions inside a HTML form (applies to almost all HTML elements, but is most used in form elements): AttributeDescriptiononblurFires the moment that the element loses focusonchangeFires the moment when the value of the element is changedoncontextmenuScript to be run when a conte...

AttributeDescriptiononkeydownFires when a user is pressing a keyonkeypressFires when a user presses a keyonkeyupFires when a user releases a key

It is occasionally desirable to deny a certain Permission to some ProtectionDomain, regardless of any other permissions that domain accrues. This example demonstrates just one of all the possible approaches for satisfying this kind of requirement. It introduces a "negative" permission clas...

The first step you need to preform is to create a NSMutableAttributedString object. The reason we create a NSMutableAttributedString instead of NSAttributedString is because it enables us to append string to it. NSString *fullStr = @"Hello World!"; NSMutableAttributedString *attString =[...

Incrementing an invoice number and saving its value is a frequent task. Using CustomDocumentProperties (CDPs) is a good method to store such numbers in a relatively safe way within the same work book, but avoiding to show related cell values simply in an unprotected work sheet. Additional hint: A...

To remote tracking between local and deleted remote branches use git fetch -p you can then use git branch -vv to see which branches are no longer being tracked. Branches that are no longer being tracked will be in the form below, containing 'gone' branch 12345e6 [origin/bran...

This example requires importing DateAdapter. import {DateAdapter} from '@angular/material'; datepicker.component.html: <md-input-container> <input mdInput [mdDatepicker]="picker" placeholder="Choose a date"> <button mdSuffix [mdDatepickerToggle]="pi...

mView.afterMeasured { // inside this block the view is completely drawn // you can get view's height/width, it.height / it.width } Under the hood inline fun View.afterMeasured(crossinline f: View.() -> Unit) { viewTreeObserver.addOnGlobalLayoutListener(object : ViewTreeObserver.OnGlob...

Suppose you’ve got a lot of commit against a project (here ulogd2, official branch is git-svn) and that you wan to send your patchset to the Mailling list [email protected]. To do so, just open a shell at the root of the git directory and use: git format-patch --stat -p --raw --signoff --subject...

Note: examples written for PowerShell 5.1 You can create instances of Generic Classes #Nullable System.DateTime [Nullable[datetime]]$nullableDate = Get-Date -Year 2012 $nullableDate $nullableDate.GetType().FullName $nullableDate = $null $nullableDate #Normal System.DateTime [datetime]$aDa...

For connection, here is a snippet to help you understand: //Allows you to enumerate and communicate with connected USB devices. UsbManager mUsbManager = (UsbManager) getSystemService(Context.USB_SERVICE); //Explicitly asking for permission final String ACTION_USB_PERMISSION = "com.android.e...

On every generated model classes there are no documentation comments added by default. If you want to use XML documentation comments for every generated entity classes, find this part inside [modelname].tt (modelname is current EDMX file name): foreach (var entity in typeMapper.GetItemsToGenerate&l...

Let's consider situation when you parse number of pages and you want to collect value from element that's optional (can be presented on one page and can be absent on another) for a paticular page. Moreover the element itself, for example, is the most ordinary element on page, in other words no spec...

Using Line Numbers ... and documenting them in case of error ("The importance of seeing Erl") Detecting which line raises an error is a substantial part of any debugging and narrows the search for the cause. To document identified error lines with a short description completes a successf...

JavaScript now have the Append and Prepend methods which was present in jQuery The main advantage of append and prepend is unlike appendChild and insertBefore, it can take any number of arguments either HTML element or plain text(which will be converted to text nodes). To append say 1 div, 1 text ...

route/index.js import About from '@/components/About' const router = new Router({ routes: [ { path: '/', name: 'home', component: {template: "<div>Home</div>"} }, { path: '/about', component: About ...