Macro serde_json_lodash::index_of [−][src]
macro_rules! index_of { () => { ... }; ($a:expr $(,)*) => { ... }; ($a:expr, $b:expr $(,)*) => { ... }; ($a:expr, $b:expr, $c:expr $(,)*) => { ... }; ($a:expr, $b:expr, $c:expr, $($rest:tt)*) => { ... }; }
Description can be found in lodash indexOf
Examples:
#[macro_use] extern crate serde_json_lodash; use serde_json::json; assert_eq!( index_of!(json!([1, 2, 1, 2]), json!(2)), 1 ); assert_eq!( index_of!(json!([1, 2, 1, 2]), json!(2), 2), 3 );
More examples:
assert_eq!(index_of!(), -1); assert_eq!(index_of!(json!(null)), -1); assert_eq!(index_of!(json!(true)), -1); assert_eq!(index_of!(json!(0)), -1); assert_eq!(index_of!(json!("")), -1); assert_eq!(index_of!(json!([])), -1); assert_eq!(index_of!(json!({})), -1); assert_eq!(index_of!(json!([null]), json!(null)), 0); assert_eq!(index_of!(json!([false]), json!(false)), 0); assert_eq!(index_of!(json!([0]), json!(0)), 0); assert_eq!(index_of!(json!([""]), json!("")), 0); assert_eq!(index_of!(json!([[]]), json!([])), -1); assert_eq!(index_of!(json!([[],1]), json!(1)), 1); assert_eq!(index_of!(json!([{}]), json!({})), -1); assert_eq!(index_of!(json!([{"a":1}]), json!({"a":1})), -1); assert_eq!(index_of!(json!([{"a":1},1]), json!(1)), 1); assert_eq!(index_of!(json!([{"a":1},1,2,1,2]), json!(2)), 2); assert_eq!(index_of!(json!([{"a":1},1,2,1,2]), json!(2), 3), 4); assert_eq!(index_of!(json!([{"a":1},1,2,1,2]), json!(2), 6), -1);