Passive Event Listeners - 被動事件監(jiān)聽器 在寫webapp頁面的時候,Chrome 提醒 [Violation] Added non-passive event listener to a scroll-blocking touchstart event. Consider marking event handler as passive to make the pag...
...以檢查瀏覽器是否可以使用該特性。提升滾動流暢度。 passive var supportsPassive = false; if (inBrowser) { try { var opts = {}; Object.defineProperty(opts, passive, ({ get: function get () { ...
...以檢查瀏覽器是否可以使用該特性。提升滾動流暢度。 passive var supportsPassive = false; if (inBrowser) { try { var opts = {}; Object.defineProperty(opts, passive, ({ get: function get () { ...
...以檢查瀏覽器是否可以使用該特性。提升滾動流暢度。 passive var supportsPassive = false; if (inBrowser) { try { var opts = {}; Object.defineProperty(opts, passive, ({ get: function get () { ...
passived到底有什么用? passived主要用于優(yōu)化瀏覽器頁面滾動的性能,讓頁面滾動更順滑~~ passived產(chǎn)生的歷史時間線 addEventListener():大家都是認識的,為dom添加觸發(fā)事件,故事就從這里開始。 在早期addEventListener是這樣的: addE...
...tDefault(); //阻止默認的處理方式(阻止下拉滑動的效果) }, {passive: false}); //passive 參數(shù)不能省略,用來兼容ios和android 如果不加passive:false,在 ios 上是不能起作用的。 二、解釋 微信在 Android 端和 IOS 端使用的不是同樣的瀏覽器內(nèi)核: ...
... chrome 的控制臺看到如下提示: Unable to preventDefault inside passive event listener due to target being treated as passive. See https://www.chromestatus.com/features/5093566007214080 于是 Google 了一番,找到這篇文章,有了...
[Violation] Added non-passive event listener to a scroll-blocking mousewheel event. Consider marking event handler as passive to make the page more responsive. 這是因為Chrome51版本以后,Chrome增加了新的事件捕獲機制-Passi...
... 根據(jù)警告提示,找到的原因是 AddEventListenerOptions defaults passive to false. With this change touchstart and touchmove listeners added to the document will default to passive:true (so that calls to preventDef...
... mounted() { document.body.addEventListener(touchmove, this.p, {passive: false}) }, beforeDestroy () { document.body.removeEventListener(touchmove, this.p) }, methods: { ...
... mounted() { document.body.addEventListener(touchmove, this.p, {passive: false}) }, beforeDestroy () { document.body.removeEventListener(touchmove, this.p) }, methods: { ...
...指移動的效果。 但是發(fā)現(xiàn)了有以下提示 [Violation] Added non-passive event listener to a scroll-blocking touchstart event. Consider marking event handler as passive to make the page more responsive. 雖然最終找到了原因是升級taro1...
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