Struct JsonArrayFormatter 

pub struct JsonArrayFormatter<'a, 'b, 'c> { /* private fields */ }

A formatter for JSON arrays.

This struct is created by the JsonFormatter::array() method and provides methods for adding elements to a JSON array with proper formatting, spacing, and indentation.

Examples

use nojson::json;

let output = json(|f| {
    f.array(|f| {
        f.element(1)?;
        f.element("test")?;
        f.element(true)
    })
});
assert_eq!(output.to_string(), "[1,\"test\",true]");

// With pretty-printing
let pretty = json(|f| {
    f.set_indent_size(2);
    f.set_spacing(true);
    f.array(|f| {
        f.elements([1, 2, 3])
    })
});

Implementations

impl JsonArrayFormatter<'_, '_, '_>

pub fn element<T: DisplayJson>(&mut self, element: T) -> Result

Adds a single element to the JSON array.

This method handles adding the appropriate comma separators between elements and applies the current formatting rules like indentation and spacing.

Examples

use nojson::json;

let output = json(|f| {
    f.array(|f| {
        f.element(1)?;
        f.element("text")?;
        f.element([9.87])
    })
});

pub fn elements<I>(&mut self, elements: I) -> Result

where I: IntoIterator, I::Item: DisplayJson,

Adds multiple elements to the JSON array from an iterator.

This is a convenience method that iterates over the provided collection and adds each item as an element using the JsonArrayFormatter::element() method.

Examples

use nojson::json;

let values = vec![1, 2, 3];
let output = json(|f| {
    f.array(|f| f.elements(&values))
});
assert_eq!(output.to_string(), "[1,2,3]");

// Works with any iterable collection
let output = json(|f| {
    f.array(|f| f.elements([true, false, true]))
});