Tutorial by Examples: t

File Formats Supported By Tkinter

Tkinter support .ppm files from PIL(Python Imaging Library), .JPG, .PNG and .GIF. To import and image you first need to create a reference like so: Image = PhotoImage(filename = [Your Image here]) Now, we can add this image to Button and Labels like so using the "img" callback: Lbl ...

Getting the Scope of element

In an angular app everything goes around scope, if we could get an elements scope then it is easy to debug the angular app. How to access the scope of element: angular.element(myDomElement).scope(); e.g. angular.element(document.getElementById('yourElementId')).scope() //accessing by ID Gett...

First Page Object

/* save the file in 'pages/loginPage' var LoginPage = function(){ }; /*Application object properties*/ LoginPage.prototype = Object.create({}, { userName: { get: function() { return browser.driver.findElement(By.id('userid')); } }, userPass: { ...

The Block Class

First we need a class that represents the block public class CustomBlock extends Block { public CustomBlock () { super(Material.ROCK); setHardness(1.0f); setHarvestLevel("pickaxe", 0); setResistance(1.0f); setCreativeTab(CreativeTabs.DEC...

The Block Model JSON

Next we need to tell Minecraft what we want our block to look like. { "parent": "block/cube_all", "textures": { "all": "example:blocks/decorative" } } That's pretty much all that's needed for it to work once the block is ...

Block Registration

Registering blocks is done from your main mod class, or a ModBlocks class method invoked from the main mod class during preInit. Block myBlock = new CustomBlock(); string registryname = "my_block"; block.setRegistryName(registryname); block.setUnlocalizedName(block.getRegistryName().to...

Bit Manipulation Application: Small to Capital Letter

One of several applications of bit manipulation is converting a letter from small to capital or vice versa by choosing a mask and a proper bit operation. For example, the a letter has this binary representation 01(1)00001 while its capital counterpart has 01(0)00001. They differ solely in the bit in...

Installation or Setup

Create a file called hello.html with the following content: <!doctype html> <html> <head> <script src="//cdnjs.cloudflare.com/ajax/libs/dygraph/2.0.0/dygraph.js"></script> <link rel="stylesheet" href="https://cdnjs.cloudflare.com...

Using CacheAttached to Override DAC Attributes in the Graph

Sometimes, you need to override one or more attributes of a particular Data Access Class (DAC) field just for a particular screen, without changing the existing behavior for other screens. Replacing All Attributes Suppose the original DAC field attributes are declared as shown below: public class...

Deployment using PM2 without downtime.

ecosystem.json { "name": "app-name", "script": "server", "exec_mode": "cluster", "instances": 0, "wait_ready": true "listen_timeout": 10000, "kill_timeout": 500...

Define custom exception, raise it and see where it comes from

To illustrate this, here is a function that has 3 different "wrong" behaviors the parameter is completely stupid: we use a user-defined expression the parameter has a typo: we use Oracle standard NO_DATA_FOUND error another, but not handled case Feel free to adapt it to your standa...

Handling connexion error exceptions

Each standard Oracle error is associated with an error number. It's important to anticipate what could go wrong in your code. Here for a connection to another database, it can be: -28000 account is locked -28001 password expired -28002 grace period -1017 wrong user / password Here is a way ...

Lightweight

Vim is (like GNU Nano or GNU emacs) lightweight. It does not need any kind of graphical interface (like x11, wayland &co). This makes vim to a system maintainers best friend. You can use it using ssh and, this is really important, on really small devices that do not have some kind of graphical ...

Usage of .GIF formats.

In order to display a gif, you need to show it frame by frame sort of like an animation. An animated gif consists of a number of frames in a single file. Tk loads the first frame but you can specify different frames by passing an index parameter when creating the image. For example: frame2 = Photo...

Running tasks

Tasks in configuration All attributes of grunt.initConfig are valid tasks, so if your Gruntfile looks like this: module.exports = function(grunt) { grunt.initConfig({ jshint: { files: ['Gruntfile.js'], } }); grunt.loadNpmTasks('grunt-contrib-jshint...

Format xml

When you add entries to an xml or copy from other sources, there often tends to be uneven tabs and spaces around the entries. When you press Ctrl + Shift + F, you easily align the entire document and remove the extra tabs as well. Thus the text gets formatted and eventually becomes readable.

Instantiating a ListObject

Dim lo as ListObject Dim MyRange as Range Set lo = Sheet1.ListObjects(1) 'or Set lo = Sheet1.ListObjects("Table1") 'or Set lo = MyRange.ListObject

Working with ListRows / ListColumns

Dim lo as ListObject Dim lr as ListRow Dim lc as ListColumn Set lr = lo.ListRows.Add Set lr = lo.ListRows(5) For Each lr in lo.ListRows lr.Range.ClearContents lr.Range(1, lo.ListColumns("Some Column").Index).Value = 8 Next Set lc = lo.ListColumns.Add Set lc = lo.Lis...

Converting an Excel Table to a normal range

Dim lo as ListObject Set lo = Sheet1.ListObjects("Table1") lo.Unlist

Un-registering events or listeners

You can un-register individual events, entire listener classes or all events registered by your plugin or even by other plugins! Un-register specific event Each event class has the getHandlerList() static method, call that and then you can use .unregister() method. PlayerInteractEvent.getHandlerL...

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