Tutorial by Examples: w

entry = tk.Entry(parent, width=10) entry.insert(0, "Hello, World!")
The value of an entry widget can be obtained with the get method of the widget: name_entry = tk.Entry(parent) ... name = name_entry.get() Optionally, you may associate an instance of a StringVar, and retrieve the value from the StringVar rather than from the widget: name_var = tk.StringVar() ...
If you like to show the dialog without the close button (i.e. the x button in the upper-right corner of the dialog), perhaps because you want to force the user to select one of options or buttons in the dialog itself: 1- Give your dialog a CSS class: $("#selector").dialog({ closeOnE...
Apps Script: //Triggered when the page is navigated to, serves up HTML function doGet(){ var template = HtmlService.createTemplateFromFile('index'); return template.evaluate() .setTitle('Example App') .setSandboxMode(HtmlService.SandboxMode.IFRAME); } //Called from the cli...
You can disable compiler warnings using #pragma warning disable and restore them using #pragma warning restore: #pragma warning disable CS0168 // Will not generate the "unused variable" compiler warning since it was disabled var x = 5; #pragma warning restore CS0168 // Will gene...
When you need a Python list object, you can utilize the tolist() method to convert your array to a list. my_array = array('i', [1,2,3,4,5]) c = my_array.tolist() # [1, 2, 3, 4, 5]
Sometimes, if an action should be bind to a collection view's cell selection, you have to implement the UICollectionViewDelegate protocol. Let's say the collection view is inside a UIViewController MyViewController. Objective-C In your MyViewController.h declares that it implements the UICollecti...
Provided that barButtonItem has a non-null image property (e.g. set in the Interface Builder). Objective-C barButtonItem.image = [barButtonItem.image imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
If you are using library that contains (for example) AwesomeViewController with a wrong status bar color you can try this: let awesomeViewController = AwesomeViewController() awesomeViewController.navigationBar.barStyle = .blackTranslucent // or other style
Click the “Move examples” button Select the examples you want to move Click “Move” Select “Search for a Topic” Paste the URL of the topic in the search box Click “Move Examples”. Click “Submit Drafts” or “Edit Drafts”
First obtain the Microsoft.CodeAnalysis.CSharp.Workspaces nuget before continuing. var workspace = Microsoft.CodeAnalysis.MSBuild.MSBuildWorkspace.Create(); var project = await workspace.OpenProjectAsync(projectFilePath); var compilation = await project.GetCompilationAsync(); foreach (var diag...
This command will save the open file with sudo rights :w !sudo tee % >/dev/null You can also map w!! to write out a file as root :cnoremap w!! w !sudo tee % >/dev/null
A mixin is just a module that can be added (mixed in) to a class. one way to do it is with the extend method. The extend method adds methods of the mixin as class methods. module SomeMixin def foo puts "foo!" end end class Bar extend SomeMixin def baz puts "...
:autocmd BufWritePost * if &diff | diffupdate | endif
FRP, or Functional Reactive Programming, has some basic terms which you need to know. Every piece of data can be represented as Observable, which is an asynchronous data stream. The power of FRP is in representation synchronous and asynchronous events as streams, Observables, and providing the same...
In some places in Common Lisp, a series of forms are evaluated in order. For instance, in the body of a defun or lambda, or the body of a dotimes. In those cases, writing multiple forms in order works as expected. In a few places, however, such as the then and else parts of an if expressions, onl...
When writing macros that expand into forms that might involve grouping, it is worthwhile spending some time considering what grouping construction to expand into. For definition style forms, for instance, a define-widget macro that will usually appear as a top-level form, and that several defuns, d...
Node Version Manager (nvm) greatly simplifies the management of Node.js versions, their installation, and removes the need for sudo when dealing with packages (e.g. npm install ...). Fish Shell (fish) "is a smart and user-friendly command line shell for OS X, Linux, and the rest of the family&...
OpenCL is short for Open Computing Language. OpenCL is a Framework for parallel programming across heterogeneous platforms, called compute devices, ranging from CPUs over GPUs to more special platforms like FPGAs. OpenCL provides a standard interface for parallel computing on these compute devices b...
// Get the reference to your ListView ListView listResults = (ListView) findViewById(R.id.listResults); // Set its adapter listResults.setAdapter(adapter); // Enable filtering in ListView listResults.setTextFilterEnabled(true); // Prepare your adapter for filtering adapter.setFilter...

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