Function query_count 

pub fn query_count(
    doc: &Document,
    path: &str,
    config: &QueryConfig,
) -> QueryResult<usize>

Count the number of matches for a JSONPath query

Arguments

• doc - The HEDL document to query
• path - JSONPath expression
• config - Query configuration

Returns

Number of matching elements

Examples

use hedl_json::jsonpath::{query_count, QueryConfig};
use hedl_core::Document;

# fn example() -> Result<(), Box<dyn std::error::Error>> {
let doc = hedl_core::parse_hedl("items: [1, 2, 3]")?;
let config = QueryConfig::default();

let count = query_count(&doc, "$.items[*]", &config)?;
assert_eq!(count, 3);
# Ok(())
# }