Tutorial by Examples: al

Detailed instructions on getting arcgis set up or installed.

// An 8-bit 'byte' value: byte aByte = (byte)0b00100001; // A 16-bit 'short' value: short aShort = (short)0b1010000101000101; // Some 32-bit 'int' values: int anInt1 = 0b10100001010001011010000101000101; int anInt2 = 0b101; int anInt3 = 0B101; // The B can be upper or lower case. // A ...

The following example shows other ways you can use the underscore in numeric literals: long creditCardNumber = 1234_5678_9012_3456L; long socialSecurityNumber = 999_99_9999L; float pi = 3.14_15F; long hexBytes = 0xFF_EC_DE_5E; long hexWords = 0xCAFE_BABE; long maxLong = 0x7fff_ffff_ffff_ffffL;...

Detailed instructions on getting caching set up or installed.

// Takes a callback and executes it with the read value def readFile(path: String)(callback: Try[String] => Unit): Unit = ??? readFile(path) { _.flatMap { file1 => readFile(path2) { _.foreach { file2 => processFiles(file1, file2) }} }} The function argument to readFile is...

We can have three cases to analyze an algorithm: Worst Case Average Case Best Case #include <stdio.h> // Linearly search x in arr[]. If x is present then return the index, // otherwise return -1 int search(int arr[], int n, int x) { int i; for (i=0; i<n; i...

The Null literal (written as null) represents the one and only value of the null type. Here are some examples MyClass object = null; MyClass[] objects = new MyClass[]{new MyClass(), null, new MyClass()}; myMethod(null); if (objects != null) { // Do something }...

A statement is usually a test on a variable or the return value of a function. To test those values, we can use some relational operators: OperatorMeaningExample==Equal to1 == 1 is TRUE, 1 == 2 is FALSE!=Not equal to1 != 2 is TRUE, 1 != 1 is FALSE<Less than1 < 2 is TRUE, 2 < 1 is FALSE>...

import AlamofireImage Alamofire.request("https://httpbin.org/image/png").responseImage { response in debugPrint(response) print(response.request) print(response.response) debugPrint(response.result) if let image = response.result.value { print(&quot...

What is PS1 PS1 denotes Prompt String 1. It is the one of the prompt available in Linux/UNIX shell. When you open your terminal, it will display the content defined in PS1 variable in your bash prompt. In order to add branch name to bash prompt we have to edit the PS1 variable(set value of PS1 in ~...

OS X Download and run the OS X installer. Windows Download and run the Windows installer 32-bit 64-bit. Debian/Ubuntu Run the following to add our apt repository and install the CLI: $ sudo add-apt-repository "deb https://cli-assets.heroku.com/branches/stable/apt ./" $ curl -L https...

Suppose we have a SharePoint list and it has four fields viz. Title, Full Name, Email, Mobile Number etc. Now if you want to apply custom validation in New/Edit Item form, you can easily do it with CSR code. The below mentioned can validate following conditions in forms: Blank values in fields ...

- hosts: all become: true - name: Start apache service: apache2 state: started

Lets have a look at the native app lifecycle methods for different platforms. Android. //Xamarin.Forms.Platform.Android.FormsApplicationActivity lifecycle methods: protected override void OnCreate(Bundle savedInstanceState); protected override void OnDestroy(); protected override void OnPause()...

SELECT item.item_id, ANY_VALUE(uses.tag) tag, COUNT(*) number_of_uses FROM item JOIN uses ON item.item_id, uses.item_id GROUP BY item.item_id shows the rows in a table called item, the count of related rows, and one of the values in the related table called uses. You can th...

Consider the following code: public async Task MethodA() { await MethodB(); // Do other work } public async Task MethodB() { await MethodC(); // Do other work } public async Task MethodC() { // Or await some other async work await Task.Delay(100); } ...

In Coq, destruct more or less corresponds to a case analysis. It is similar to induction except that there's no induction hypothesis. Here is a (admittedly rather trivial) example of this tactic: Require Import Coq.Arith.Lt. Theorem atLeastZero : forall a, 0 <= a. Proof. intros. destr...

Resource Acquisition Is Initialization (RAII) is a common idiom in resource management. In the case of dynamic memory, it uses smart pointers to accomplish resource management. When using RAII, an acquired resource is immediately given ownership to a smart pointer or equivalent resource manager. The...

Detailed instructions on getting serial-port set up or installed.

If our component is not ready and waiting for data from server, then we can add loader using *ngIf. Steps: First declare a boolean: loading: boolean = false; Next, in your component add a lifecycle hook called ngOnInit ngOnInit() { this.loading = true; } and after you get complete dat...