Tutorial by Examples: var

In Kotlin, variable declarations look a bit different than Java's: val i : Int = 42 They start with either val or var, making the declaration final ("value") or variable. The type is noted after the name, separated by a : Thanks to Kotlin's type inference the explicit typ...

The volatile keyword tells the compiler that the value of the variable may change at any time as a result of external conditions, not only as a result of program control flow. The compiler will not optimize anything that has to do with the volatile variable. volatile int foo; /* Different ways to ...

if I forget the password then I'll get error. $ mysql -u root -p Enter password: ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES) I tried to solve the issue by first knowing the status: $ systemctl status mysql.service mysql.service - MySQL Community ...

Suppose you are comparing value with some variable if ( i == 2) //Bad-way { doSomething; } Now suppose you have mistaken == with =. Then it will take your sweet time to figure it out. if( 2 == i) //Good-way { doSomething; } Then, if an equal sign is accidentally left out, the ...

In PHP, variable values have an associated "truthiness" so even non-boolean values will equate to true or false. This allows any variable to be used in a conditional block, e.g. if ($var == true) { /* explicit version */ } if ($var) { /* $var == true is implicit */ } Here are some fun...

let imagePath = require("../../assets/list.png"); <Image style={{height: 50, width: 50}} source={imagePath} /> From external resource: <Image style={{height: 50, width: 50}} source={{uri: userData.image}} />

To ensure that a GPU version TensorFlow process only runs on CPU: import os os.environ["CUDA_VISIBLE_DEVICES"]="-1" import tensorflow as tf For more information on the CUDA_VISIBLE_DEVICES, have a look to this answer or to the CUDA documentation.

def versionPropsFile = file('version.properties') def versionBuild /*Setting default value for versionBuild which is the last incremented value stored in the file */ if (versionPropsFile.canRead()) { def Properties versionProps = new Properties() versionProps.load(new FileInputStream(ve...

To get a value use the .getPropertyValue() method element.style.getPropertyValue("--var") To set a value use the .setProperty() method. element.style.setProperty("--var", "NEW_VALUE")

For rendering multiple props or variables we can use ``. render() { let firstName = 'test'; let lastName = 'name'; return ( <View style={styles.container}> <Text>{`${firstName} ${lastName}` } </Text> </View> ); } Output: te...

var myVariable = "This is a variable!"; This is an example of defining variables. This variable is called a "string" because it has ASCII characters (A-Z, 0-9, !@#$, etc.)

var number1 = 5; number1 = 3; Here, we defined a number called "number1" which was equal to 5. However, on the second line, we changed the value to 3. To show the value of a variable, we log it to the console or use window.alert(): console.log(number1); // 3 window.alert(number1); //...

var myInteger = 12; // 32-bit number (from -2,147,483,648 to 2,147,483,647) var myLong = 9310141419482; // 64-bit number (from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807) var myFloat = 5.5; // 32-bit floating-point number (decimal) var myDouble = 9310141419482.22; // 64-bit floating-...

Let's first brush up with what are the Instance Variables: They behave more like properties for an object. They are initialized on an object creation. Instance variables are accessible through instance methods. Per Object has per instance variables. Instance Variables are not shared between object...

=> Original Post <= ASP.NET Core uses the ASPNETCORE_ENVIRONMENT environment variable to determine the current environment. By default, if you run your application without setting this value, it will automatically default to the Production environment. > dotnet run Project TestApp (.NETC...