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Add Number.isNaN() binding (#532)

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This commit is contained in:
Tyler Wilcock
2018-07-21 15:19:30 -05:00
committed by Alex Crichton
parent c174262cf0
commit b7acb0785d
2 changed files with 25 additions and 0 deletions
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18
crates/js-sys/tests/wasm/Number.rs
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@ -19,6 +19,24 @@ fn is_integer() {
assert!(!Number::is_integer(&42.1.into()));
}
#[wasm_bindgen_test]
fn is_nan() {
assert!(Number::is_nan(&NAN.into()));
assert!(!Number::is_nan(&JsValue::TRUE));
assert!(!Number::is_nan(&JsValue::NULL));
assert!(!Number::is_nan(&37.into()));
assert!(!Number::is_nan(&"37".into()));
assert!(!Number::is_nan(&"37.37".into()));
assert!(!Number::is_nan(&"".into()));
assert!(!Number::is_nan(&" ".into()));
// These would all return true with the global isNaN()
assert!(!Number::is_nan(&"NaN".into()));
assert!(!Number::is_nan(&JsValue::UNDEFINED));
assert!(!Number::is_nan(&"blabla".into()));
}
#[wasm_bindgen_test]
fn is_safe_integer() {
assert_eq!(Number::is_safe_integer(&42.into()), true);