_defer记录的具体结构也非常简单,主要包含了参与调用的参数大小、当前 defer 语句所在函数的 PC 和 SP 寄存器、被 defer 的函数的入口地址以及串联多个 defer 的 link 链表,该链表指向下一个需要执行的 defer,如图 9.2.1 所示。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 // src/runtime/panic.gotyp...
NameMeaningDefault valueExample value container The scrolling container of the elements in the elements_selector option. document document.querySelector('.scrollPanel') elements_selector The CSS selector of the elements to load lazily, which will be selected as descendants of the container object. ...
Problem The download button currently expects its data to be available when declaring the button. If data needs to be read from disk (or worse: compiled multiple disk sources), this can make the app needlessly slow. In my app, the data d...
fulfilled: meaning that the operation completed successfully. rejected: meaning that the operation failed. await - JavaScript | MDN https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/await async function - JavaScript | MDN https://developer.mozilla.org/en-US/docs/Web/JavaSc...
threshold: 0:The default valueIntersectionObservershould react when the very first or very last pixel of an observed element intersects one of the borders of the “capturing frame.” Keep in mind thatIntersectionObserveris direction-agnostic, meaning that it will react in both scenarios: a) when ...
So it turns out one can defer scripts, meaning give the browser a hint that a script will not mess up with the page right now, so it won't affect the rendering and can be delayed for later. This could give you increased performance during the initial page load and rendering, since you...
zco suppose it's possible that all operations will go wrong, so the first return-value always be error,the second one is the exact result returned by yourself.Error in different place has different meaning,we can deal with them in different way. But sometimes ,we don't want to dealing wi...
For every instance of LazyLoad you can pass in some options, to alter its default behaviour. Here's the list of the options.NameMeaningDefault valueExample value container The scrolling container of the elements in the elements_selector option. document document.querySelector('.scrollPanel')...
NameMeaningDefault valueExample value container The scrolling container of the elements in the elements_selector option. document document.querySelector('.scrollPanel') elements_selector The CSS selector of the elements to load lazily, which will be selected as descendants of the container object. ...