package js_of_ocaml
Compiler from OCaml bytecode to JavaScript
Install
Dune Dependency
Authors
Maintainers
Sources
js_of_ocaml-5.4.0.tbz
sha256=f1215de133867fefdb16e2798a225ee0446469a57462af0deebdd22d2a8d3b94
sha512=610cd22818bc6f0a0163f0eec74f58338e18709a6101639f65e58241a9216ed286c3cb091b41e36a82c926de5f030d718a6e76a493e885e61456047a8da153c9
doc/src/js_of_ocaml/performanceObserver.ml.html
Source file performanceObserver.ml
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(* Js_of_ocaml library * http://www.ocsigen.org/js_of_ocaml/ * Copyright (C) 2021 Philip White * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, with linking exception; * either version 2.1 of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *) open! Import class type performanceObserverInit = object method entryTypes : Js.js_string Js.t Js.js_array Js.t Js.writeonly_prop end class type performanceEntry = object method name : Js.js_string Js.t Js.readonly_prop method entryType : Js.js_string Js.t Js.readonly_prop method startTime : float Js.readonly_prop method duration : float Js.readonly_prop end class type performanceObserverEntryList = object method getEntries : performanceEntry Js.t Js.js_array Js.t Js.meth end class type performanceObserver = object method observe : performanceObserverInit Js.t -> unit Js.meth method disconnect : unit Js.meth method takeRecords : performanceEntry Js.t Js.js_array Js.t Js.meth end let performanceObserver = Js.Unsafe.global##._PerformanceObserver let is_supported () = Js.Optdef.test performanceObserver let performanceObserver : ( (performanceObserverEntryList Js.t -> performanceObserver Js.t -> unit) Js.callback -> performanceObserver Js.t) Js.constr = performanceObserver let observe ~entry_types ~f = let entry_types = entry_types |> List.map Js.string |> Array.of_list |> Js.array in let performance_observer_init : performanceObserverInit Js.t = Js.Unsafe.obj [||] in let () = performance_observer_init##.entryTypes := entry_types in let obs = new%js performanceObserver (Js.wrap_callback f) in let () = obs##observe performance_observer_init in obs
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