React Native Basics Assessment

What is a variable in React Native?

• A variable in React Native is a named storage location for data that can change during program execution.

• A variable in React Native is a type of component.

• A variable in React Native is a method for rendering UI.

• A variable in React Native is a fixed storage location for data.

How do you declare a variable in React Native?

• You declare a variable with 'define' or 'declare'.

• You declare a variable using 'import' or 'export'.

• You must use 'function' to declare a variable.

• You declare a variable using 'let', 'const', or 'var'.

What are the different data types available in React Native?

• String, Number, Boolean, Array, Object, Function, Null, Undefined

• Character, Decimal, List, Set

• Text, Integer, Flag, Map

• Byte, Tuple, Date, Time

What is the result of the expression 5 + 3 in React Native?

• 6

• 8

• 4

• 10

How do you perform subtraction in React Native?

• Use the subtraction operator (-) in JavaScript to perform subtraction.

• Use the addition operator (+) in JavaScript.

• Subtraction is not possible in React Native.

• You can only subtract numbers in a database.

What is the purpose of the if statement in React Native?

• To conditionally render components or execute code based on specific conditions.

• To create new components in React Native.

• To define styles for components in React Native.

• To manage state in React Native applications.

How do you write an if-else statement in React Native?

• if(condition) then { /* code if true */ }

• if(condition) { /* code */ }

• if(condition) { /* code if true */ } else { /* code if false */ }

• if(condition) { /* code if false */ }

What is a loop in programming?

• A loop is a data structure that stores multiple values.

• A loop is a type of variable used in programming.

• A loop is a function that executes only once.

• A loop is a control structure that repeats a block of code as long as a specified condition is true.

How do you create a for loop in React Native?

• Use array.map() or a traditional for loop to iterate and render components.

• Implement a switch statement for iteration.

• Utilize a while loop for rendering elements.

• Use array.filter() to modify components.

What is the syntax for a while loop in React Native?

• for (condition) { // code to execute }

• while (condition) { // code to execute }

• while condition: // code to execute

• do { // code to execute } while (condition)