cotrTypeConvert

Explains type conversion

Aliases:

• cotrTypeConvert
• cotrTypeCast
• cotrConvert
• cotrCast
• convert
• cast

cpp

// C++ Type Conversion:

// Implicit conversions (compiler performs automatically):
// - Smaller integer types to larger integer types (e.g., int to long).
// - Integers to floating-point types (e.g., int to double).

// Explicit conversions (using casts):
// - static_cast<Type>(expression): For safe conversions within compatible types.
// - dynamic_cast<Type>(expression): For safe conversions between polymorphic types.
// - const_cast<Type>(expression): For removing constness.
// - reinterpret_cast<Type>(expression): For low-level reinterpretations of data.

// Example:
// int x = 5;
// double y = static_cast<double>(x);

csharp

// C# Type Conversion:

// Implicit conversions (compiler performs automatically):
// - Smaller numeric types to larger numeric types (e.g., int to double).

// Explicit conversions (using casts):
// - (Type)variable  // C-style cast
// - variable as Type  // Safe cast (returns null if conversion fails)
// - Convert.ToType(variable)  // Conversion methods in the Convert class

// Note:
// - Be cautious with explicit conversions, as they can lead to data loss or errors if the conversion is not valid.

dart

// Dart Type Conversion:

// Implicit conversions (compiler performs automatically):
// - int to double (if no precision loss).

// Explicit conversions (using casts):
// - variable as Type  // Safe cast (returns null if conversion fails)
// - Type.castFrom(variable)  // Conversion methods

// Note:
// - Be cautious with explicit conversions, as they can lead to data loss or errors if the conversion is not valid.

go

// Go Type Conversion:

// Explicit conversions (using type assertion):
// - targetType(variable)  // Type assertion (can panic if conversion fails)

// Conversion functions:
// - strconv.Itoa(int)  // Converts int to string
// - strconv.Atoi(string)  // Converts string to int
// - ... (Various conversion functions in strconv and other packages)

// Note:
// - Be cautious with type assertions, as they can lead to panics if the conversion is not valid.

haskell

-- Haskell emphasizes explicit type conversions for safety.

-- Explicit conversions:
-- - fromIntegral variable  // Converts numeric types (e.g., Int to Double)
-- - show variable  // Converts values to strings
-- - read variable  // Converts strings to values (unsafe)

-- Note:
-- - Be cautious with type conversions, especially 'read', as they can lead to errors if the conversion is not valid.

java

// Java Type Conversion:

// Implicit conversions (compiler performs automatically):
// - Smaller numeric types to larger numeric types (e.g., int to double).

// Explicit conversions (using casts):
// - (Type)variable  // C-style cast

// Conversion methods:
// - Integer.parseInt(string)  // Converts string to int
// - Double.parseDouble(string)  // Converts string to double
// - ... (Various conversion methods in wrapper classes and other packages)

// Note:
// - Be cautious with explicit conversions, as they can lead to data loss or errors if the conversion is not valid.

javascript

// JavaScript Type Conversion:

// Implicit conversions (JavaScript performs automatically):
// - Can be unpredictable, especially with loose equality (==).

// Explicit conversions:
// - Number(variable)  // Converts to number
// - String(variable)  // Converts to string
// - Boolean(variable)  // Converts to boolean
// - parseInt(string)  // Converts string to integer
// - parseFloat(string)  // Converts string to floating-point number

// Note:
// - Be aware of implicit conversions and use explicit conversions when necessary for clarity and control.

javascriptreact

// JavaScript Type Conversion:

// Implicit conversions (JavaScript performs automatically):
// - Can be unpredictable, especially with loose equality (==).

// Explicit conversions:
// - Number(variable)  // Converts to number
// - String(variable)  // Converts to string
// - Boolean(variable)  // Converts to boolean
// - parseInt(string)  // Converts string to integer
// - parseFloat(string)  // Converts string to floating-point number

// Note:
// - Be aware of implicit conversions and use explicit conversions when necessary for clarity and control.

kotlin

// Kotlin Type Conversion:

// Implicit conversions (compiler performs automatically):
// - Smaller numeric types to larger numeric types (e.g., Int to Double).

// Explicit conversions (using casts):
// - variable as Type  // Safe cast (returns null if conversion fails)
// - variable.toType()  // Conversion methods (e.g., toInt(), toDouble())

// Note:
// - Be cautious with explicit conversions, as they can lead to data loss or errors if the conversion is not valid.

perl

# Perl Type Conversion:

# Implicit conversions (Perl performs automatically):
# - Can be unpredictable, especially with loose equality (==).

# Explicit conversions:
# - int(variable)  // Converts to integer
# - 0 + variable  // Converts to number
# - "" . variable  // Converts to string

# Note:
# - Be aware of implicit conversions and use explicit conversions when necessary for clarity and control.

php

// PHP Type Conversion:

// Implicit conversions (PHP performs automatically):
// - Can be unpredictable, especially with loose equality (==).

// Explicit conversions (using casts):
// - (Type)variable  // C-style cast

// Conversion functions:
// - intval(variable)  // Converts to integer
// - floatval(variable)  // Converts to float
// - strval(variable)  // Converts to string
// - boolval(variable)  // Converts to boolean

// Note:
// - Be aware of implicit conversions and use explicit conversions when necessary for clarity and control.

powershell

# PowerShell Type Conversion:

# Explicit conversions:
# - [Type]variable  // Type casting (can throw an error if conversion fails)
# - variable.ToString()  // Converts to string
# - [int]variable  // Converts to integer
# - [double]variable  // Converts to double
# - ... (Various conversion methods and type accelerators)

# Note:
# - Be cautious with type casting, as it can lead to errors if the conversion is not valid.

python

# Python Type Conversion:

# Implicit conversions (Python performs automatically):
# - Can be unpredictable, especially with loose equality (==).

# Explicit conversions:
# - int(variable)  // Converts to integer
# - float(variable)  // Converts to float
# - str(variable)  // Converts to string
# - bool(variable)  // Converts to boolean

# Note:
# - Be aware of implicit conversions and use explicit conversions when necessary for clarity and control.

r

# R Type Conversion:

# Implicit conversions (R performs automatically):
# - Can be unpredictable, especially with loose equality (==).

# Explicit conversions:
# - as.integer(variable)  // Converts to integer
# - as.double(variable)  // Converts to double
# - as.character(variable)  // Converts to string
# - as.logical(variable)  // Converts to boolean
# - ... (Various conversion functions in base R and packages)

# Note:
# - Be aware of implicit conversions and use explicit conversions when necessary for clarity and control.

ruby

# Ruby Type Conversion:

# Implicit conversions (Ruby performs automatically):
# - Can be unpredictable, especially with loose equality (==).

# Explicit conversions:
# - variable.to_i  // Converts to integer
# - variable.to_f  // Converts to float
# - variable.to_s  // Converts to string
# - !!variable  // Converts to boolean

# Note:
# - Be aware of implicit conversions and use explicit conversions when necessary for clarity and control.

rust

// Rust Type Conversion:

// Rust emphasizes explicit type conversions for safety.

// Explicit conversions:
// - variable as TargetType  // Type casting (can panic if conversion fails)
// - TargetType::from(variable)  // Conversion methods (e.g., i32::from(f64))

// Note:
// - Be cautious with type casting, as it can lead to panics if the conversion is not valid.

scala

// Scala Type Conversion:

// Implicit conversions (compiler performs automatically):
// - Smaller numeric types to larger numeric types (e.g., Int to Double).

// Explicit conversions (using casts):
// - variable.asInstanceOf[Type]  // Type casting (can throw ClassCastException if conversion fails)
// - variable.toType  // Conversion methods (e.g., toInt, toDouble)

// Note:
// - Be cautious with explicit conversions, as they can lead to errors if the conversion is not valid.

shellscript

# Bash is dynamically typed, so explicit conversion is often not needed.
# However, you can use tools like awk or bc for specific conversions.

swift

// Swift Type Conversion:

// Swift emphasizes explicit type conversions for safety.

// Explicit conversions:
// - variable as? TargetType  // Safe cast (returns nil if conversion fails)
// - TargetType(variable)  // Forced cast (can crash if conversion fails)

// Note:
// - Use safe casts (as?) whenever possible.
// - Only use forced casts (TargetType()) when you are certain the conversion will succeed.

typescript

// TypeScript Type Conversion:

// Implicit conversions (TypeScript performs automatically):
// - Can be unpredictable, especially with loose equality (==).

// Explicit conversions:
// - variable as Type  // Type assertion (can throw an error if conversion fails)
// - <Type>variable  // Type casting (can throw an error if conversion fails)

// Note:
// - Be aware of implicit conversions and use explicit conversions when necessary for clarity and control.

typescriptreact

// TypeScript Type Conversion:

// Implicit conversions (TypeScript performs automatically):
// - Can be unpredictable, especially with loose equality (==).

// Explicit conversions:
// - variable as Type  // Type assertion (can throw an error if conversion fails)
// - <Type>variable  // Type casting (can throw an error if conversion fails)

// Note:
// - Be aware of implicit conversions and use explicit conversions when necessary for clarity and control.