Tutorial by Examples: on

Let's say we have a component that should only be displayed if the user is logged in. So we create a HOC that checks for the authentication on each render(): AuthenticatedComponent.js import React from "react"; export function requireAuthentication(Component) { return class Auth...
PageTS Settings: ## Default Image cropping ## TCEFORM.sys_file_reference.crop.config.cropVariants { default { title = Desktop selectedRatio = NaN allowedAspectRatios { NaN { title = Free value = 0.0 } ...
Include the plugin from a CDN or locally after including jQuery. Then attach the .validate() method to the form in order to initialize the plugin. Within this method you can define your rules, custom messages, and other options. <script type="text/javascript" src="//cdnjs.cloudf...
Detailed instructions on getting facebook-ads-api set up or installed.
This is a just a simple example of how to use GooglePlay Service's ActivityRecognitionApi. Although this is a great library, it does not work on devices that do not have Google Play Services installed. Docs for ActivityRecognition API Manifest <!-- This is needed to use Activity Recognition! -...
PathSense activity recognition is another good library for devices which don't have Google Play Services, as they have built their own activity recognition model, but requires developers register at http://developer.pathsense.com to get an API key and Client ID. Manifest <application andro...
Detailed instructions on getting internet-explorer set up or installed.
You may find yourself needing to clone a row, maybe change a few attributes but you need an efficient way to keep things DRY. Laravel provides a sort of 'hidden' method to allow you to do this functionality. Though it is completely undocumented, you need to search through the API to find it. Using ...
def quicksort(arr): if len(arr) <= 1: return arr pivot = arr[len(arr) / 2] left = [x for x in arr if x < pivot] middle = [x for x in arr if x == pivot] right = [x for x in arr if x > pivot] return quicksort(left) + middle + quicksort(right) print qu...
A for loop iterate through items in an enumeration program EnumLoop; uses TypInfo; type TWeekdays = (Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday); var wd : TWeekdays; begin for wd in TWeekdays do WriteLn(GetEnumName(TypeInfo(TWeekdays), Ord(wd))); ...
Consider the array declared as real x(10) Then we have three aspects of interest: The whole array x; Array elements, like x(1); Array sections, like x(2:6). Whole arrays In most cases the whole array x refers to all of the elements of the array as a single entity. It may appear in exec...
Create new script section. I call that sa(Script Anonymuos) that meens for me generate JavaScript section with anonymuous function call inside. <script type="text/javascript"> $(function () { $END$ }); </script> If in your project still use old jQuery you c...
var _activitiesGridName = ''; function SetupActivityGridOnload(gridName) { var btnsToHide = [ 'AddserviceappointmentButton', 'AddcampaignresponseButton', 'AddappointmentButton' ]; _activitiesGridName = gridName; setTimeout(function () { //...
# install sbt with homebrew (if you didn't) brew install sbt # - create a new scala project # - name your project name when asked like: hello-world sbt new sbt/scala-seed.g8 # go to the new project directory that you named cd hello-world # run sbt to open the sbt shell sbt # run you...
Such a group is made of radiobuttons that share a control variable so that no more than one can be selected. # control variable var = tk.IntVar(parent, 0) # group of radiobuttons for i in range(1,4): tk.Radiobutton(parent, text='Choice %i' % i, value=i, variable=var).pack() tk.Button(p...
Getting a GA Account: If you don’t have an Analytics account, create one. If you do have an Analytics account, sign in. Both options are available at google.com/analytics Setting up a property in your Analytics account: A property represents your website or app where the data gets aggrega...
The gross majority of the time a SyntaxError which points to an uninteresting line means there is an issue on the line before it (in this example, it's a missing parenthesis): def my_print(): x = (1 + 1 print(x) Returns File "<input>", line 3 print(x) ^...
Content of file.json (one JSON object per line): {"A": 1, "B": 2} {"A": 3, "B": 4} How to read directly from a local file: pd.read_json('file.json', lines=True) # Output: # A B # 0 1 2 # 1 3 4
$man <command> Displays the on-line manual pages for the command $clear Clears the terminal screen $pwd Returns the working directory name $echo <string> Writes the string to the standard output $printf <string> Format and print the string Example: print $PATH ...
Registering items is done from your main mod class, or a ModItems class method invoked from the main mod class during preInit. Item item = new CustomItem(); string registryname = "my_item"; item.setRegistryName(registryname); item.setUnlocalizedName(item.getRegistryName().toString()); ...

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