String Concatenation (++)

The string concatenation operator (+) in OSL joins two strings together without inserting any space between them.

Syntax

string1 + string2

Description

The + operator joins strings together without adding spaces. If either operand is a string, the other operand will be converted to a string and the operation will use string concatenation rules. This behavior is identical to the ++ operator.

Examples

Basic String Concatenation

result = "hello" + "world"
log result  // Outputs: "helloworld"

// No space is added between "hello" and "world"

Mixed Type Concatenation

// Concatenating strings with numbers
message = "The answer is" + 42
log message  // Outputs: "The answer is42"

// Concatenating multiple items
fullName = "John" + "Doe" + "Smith"
log fullName  // Outputs: "JohnDoeSmith"

Building Sentences

subject = "The cat"
verb = "sat"
preposition = "on"
object = "the mat"

// The + operator concatenates without spaces
sentence = subject + " " + verb + " " + preposition + " " + object
log sentence  // Outputs: "The cat sat on the mat"

Comparison with Other String Operators

+ vs. ++ Operator

The + and ++ operators behave identically in OSL-both join strings without adding spaces:

// + operator joins strings without a space
log "hello" + "world"  // Outputs: "helloworld"

// ++ operator also joins strings without a space (identical behavior)
log "hello" ++ "world"  // Outputs: "helloworld"

+ vs. .append() Method

The .append() method attaches a string to the end without adding a space, which is identical to both + and ++:

str = "hello"
str.append("world")
log str  // Outputs: "helloworld"

// Equivalent to:
str = "hello" + "world"   // "helloworld"
str = "hello" ++ "world"  // "helloworld"

Notes

• Both + and ++ operators concatenate strings without adding spaces.

• To add spaces between concatenated strings, explicitly include space strings (e.g., "hello" + " " + "world").

• The string concatenation behavior applies whenever either operand is a string.