diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/std/private/jsutils.nim | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/std/private/jsutils.nim b/lib/std/private/jsutils.nim index aa2e984ff..14104261e 100644 --- a/lib/std/private/jsutils.nim +++ b/lib/std/private/jsutils.nim @@ -23,8 +23,16 @@ when defined(js): func `[]=`*(arr: Float64Array, i: int, v: float) {.importjs: "#[#] = #".} + proc jsTypeOf*[T](x: T): cstring {.importjs: "typeof(#)".} + ## Returns the name of the JsObject's JavaScript type as a cstring. + # xxx replace jsffi.jsTypeOf with this definition and add tests + + proc jsConstructorName*[T](a: T): cstring = + asm """`result` = `a`.constructor.name""" + proc hasJsBigInt*(): bool = asm """`result` = typeof BigInt != 'undefined'""" proc hasBigUint64Array*(): bool = asm """`result` = typeof BigUint64Array != 'undefined'""" + |