Creates a JSON::Builder that will write to the given IO.

Writes the start of an array, invokes the block, and the writes the end of it.

Writes a boolean value.

Writes the end of an array.

Signals the end of a JSON document.

Writes the end of an object.

Writes an object's field and value. The field's name is first converted to a String by invoking to_s on it.

Writes an object's field and then invokes the block. This is equivalent of invoking #string(value) and then invoking the block.

Flushes the underlying IO.

Sets the indent string.

Sets the indent level (number of spaces).

By default the maximum nesting of arrays/objects is 99. Nesting more than this will result in a JSON::Error. Changing the value of this property allows more/less nesting.

By default the maximum nesting of arrays/objects is 99. Nesting more than this will result in a JSON::Error. Changing the value of this property allows more/less nesting.

Returns true if the next thing that must pushed into this builder is an object key (so a string) or the end of an object.

Writes a #null value.

Writes an integer.

Writes a float.

Writes a big decimal.

Writes the start of an object, invokes the block, and the writes the end of it.

Writes a raw value, considered a scalar, directly into the IO without processing. This is the only method that might lead to invalid JSON being generated, so you must be sure that string contains a valid JSON string.

Writes a scalar value.

Writes a scalar value.

Writes a scalar value.

Writes a scalar value.

Writes the start of an array.

Starts a document.

Writes the start of an object.

Writes a string with the content of value. The payload is stringified via to_s(IO) and escaped for JSON representation.

JSON.build do |builder|
  builder.string("foo")
end # => %("foo")
JSON.build do |builder|
  builder.string([1, 2])
end # => %("[1, 2]")

This method can also be used to write the name of an object field.

Writes a string with the contents written to the yielded IO. The payload gets escaped for JSON representation.

JSON.build do |builder|
  builder.string do |io|
    io << "foo"
    io << [1, 2]
  end # => %("foo[1, 2]")
end

This method can also be used to write the name of an object field.