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zena:string-builder

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import {…} from 'zena:string-builder';

Classes

StringBuilder

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final class StringBuilder

An append-only sequence of characters for efficient string construction.

Constructors
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new(capacity: i32 = 16)
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Creates a new StringBuilder with the specified initial capacity.

capacity

Initial capacity for the first chunk.

Properties
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length: i32 { get; }
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Current length of the built string in bytes.

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capacity: i32 { get; }
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Current capacity (total allocated size).

Methods
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append(s: String): StringBuilder
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Appends a string to the builder.

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appendByte(b: i32): StringBuilder
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Appends a single byte.

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appendI32(n: i32): StringBuilder
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Appends a signed 32-bit integer as decimal. Uses shared conversion from zena:string-convert.

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appendU32(n: u32): StringBuilder
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Appends an unsigned 32-bit integer as decimal. Uses shared conversion from zena:string-convert.

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appendI64(n: i64): StringBuilder
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Appends a signed 64-bit integer as decimal. Uses shared conversion from zena:string-convert.

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appendU64(n: u64): StringBuilder
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Appends an unsigned 64-bit integer as decimal. Uses shared conversion from zena:string-convert.

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appendF32(n: f32): StringBuilder
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Appends a 32-bit float as decimal. Uses shared conversion from zena:string-convert.

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appendF64(n: f64): StringBuilder
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Appends a 64-bit float as decimal. Uses shared conversion from zena:string-convert.

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toString(): String
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Returns the string content.

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clear(): void
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Clears the builder.

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static fromString(s: String): StringBuilder
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Creates a new StringBuilder initialized with the content of the given String. If the string uses its entire backing ByteArray, the builder will adopt the array directly (zero-copy).

IterableJoin

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extension class IterableJoin<T>
Methods
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join(stringify: (item: T) => String, separator: String = ', '): String
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