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author | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:42:52 -0500 |
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committer | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:42:52 -0500 |
commit | 074785cea106179cb3305637055ab0a009ca74f2 (patch) | |
tree | e6ae371cccd642aa2b67f39752a2cdf1fd4eb040 /files/ru/web/api/event/timestamp/index.html | |
parent | da78a9e329e272dedb2400b79a3bdeebff387d47 (diff) | |
download | translated-content-074785cea106179cb3305637055ab0a009ca74f2.tar.gz translated-content-074785cea106179cb3305637055ab0a009ca74f2.tar.bz2 translated-content-074785cea106179cb3305637055ab0a009ca74f2.zip |
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Diffstat (limited to 'files/ru/web/api/event/timestamp/index.html')
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diff --git a/files/ru/web/api/event/timestamp/index.html b/files/ru/web/api/event/timestamp/index.html new file mode 100644 index 0000000000..6a79557c96 --- /dev/null +++ b/files/ru/web/api/event/timestamp/index.html @@ -0,0 +1,103 @@ +--- +title: Event.timeStamp +slug: Web/API/Event/timeStamp +translation_of: Web/API/Event/timeStamp +--- +<div>{{APIRef("DOM")}}</div> + +<p><span id="result_box" lang="ru"><span>Возвращает время (в миллисекундах), в котором было создано событие.</span></span></p> + +<div class="note"> +<p><strong>Примечание: </strong><span id="result_box" lang="ru"><span>Это свойство работает только в том случае, если система событий поддерживает его для конкретного события.</span></span></p> +</div> + +<h2 id="Синтаксис"><span class="short_text" id="result_box" lang="ru"><span>Синтаксис</span></span></h2> + +<pre class="syntaxbox"><var>event</var>.timeStamp +</pre> + +<h3 id="Значение">Значение</h3> + +<p>Значение - это миллисекунды, прошедшие с начала жизненного цикла текущего документа до создания события.</p> + +<p>In newer implementations, the value is a {{domxref("DOMHighResTimeStamp")}} accurate to 5 microseconds (0.005 ms). In older implementations, the value is a {{domxref("DOMTimeStamp")}}, accurate to a millisecond.</p> + +<h2 id="Example">Example</h2> + +<h3 id="HTML_content">HTML content</h3> + +<pre class="brush: html"><p> + Focus this iframe and press any key to get the + current timestamp for the keypress event. +</p> +<p>timeStamp: <span id="time">-</span></p></pre> + +<h3 id="JavaScript_content">JavaScript content</h3> + +<pre class="brush: js">function getTime(event) { + var time = document.getElementById("time"); + time.firstChild.nodeValue = event.timeStamp; +} +document.body.addEventListener("keypress", getTime);</pre> + +<h3 id="Result">Result</h3> + +<p>{{EmbedLiveSample("Example", "100%", 100)}}</p> + +<h2 id="Reduced_time_precision">Reduced time precision</h2> + +<p>To offer protection against timing attacks and fingerprinting, the precision of <code>event.timeStamp</code> might get rounded depending on browser settings.<br> + In Firefox, the <code>privacy.reduceTimerPrecision</code> preference is enabled by default and defaults to 20us in Firefox 59; in 60 it will be 2ms.</p> + +<pre class="brush: js">// reduced time precision (2ms) in Firefox 60 +event.timeStamp; +// 1519211809934 +// 1519211810362 +// 1519211811670 +// ... + + +// reduced time precision with `privacy.resistFingerprinting` enabled +event.timeStamp; +// 1519129853500 +// 1519129858900 +// 1519129864400 +// ... +</pre> + +<p>In Firefox, you can also enabled <code>privacy.resistFingerprinting</code>, the precision will be 100ms or the value of <code>privacy.resistFingerprinting.reduceTimerPrecision.microseconds</code>, whichever is larger.</p> + +<h2 id="Specifications">Specifications</h2> + +<table class="standard-table"> + <thead> + <tr> + <th scope="col">Specification</th> + <th scope="col">Status</th> + <th scope="col">Comment</th> + </tr> + </thead> + <tbody> + <tr> + <td>{{SpecName("DOM WHATWG", "#dom-event-timestamp", "Event.timeStamp")}}</td> + <td>{{Spec2("DOM WHATWG")}}</td> + <td> </td> + </tr> + <tr> + <td>{{SpecName("DOM4", "#dom-event-timestamp", "Event.timeStamp")}}</td> + <td>{{Spec2("DOM4")}}</td> + <td> </td> + </tr> + <tr> + <td>{{SpecName("DOM2 Events", "#Events-Event-timeStamp", "Event.timeStamp")}}</td> + <td>{{Spec2("DOM2 Events")}}</td> + <td>Initial definition</td> + </tr> + </tbody> +</table> + +<h2 id="Browser_compatibility">Browser compatibility</h2> + + + +<p>{{Compat("api.Event.timeStamp")}}</p> |