Clear

Resets the length to zero, keeping the capacity.

Module: Std

Signature

func Clear(self);

Description

Sets the builder's length back to 0 so it can be reused, without freeing the buffer — the existing capacity is retained, so refilling it won't reallocate. The old bytes are not wiped; they are simply overwritten as you append again.

Example

import Std::StringBuilder;

var sb = StringBuilder::WithCapacity(128);
for i in 0..3 {
    sb.Append("row");
    let line = sb.ToString();
    // ... use line ...
    sb.Clear();              // reuse the same buffer next iteration
}

See also

• StringBuilder — the type
• IsEmpty — check whether it's empty
• IntoString — finish instead of clearing