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上下文绑定的困扰 箭头函数最显著的特点是不绑定自身的 this,而是继承外部作用域的 this 值。这在某些情况下可以简化代码,但在其他情况下却可能导致难以预料的错误。例如,在对象方法中,箭头函数无法正确绑定到对象的上下文,导致 this.data ...
在Java的世界里,箭头函数因其简洁的语法和优雅的表现方式而受到开发者的广泛喜爱。然而,令人意外的是,许多大型科技公司,如Facebook,开始对箭头函数的使用进行限制。这一转变并非无缘无故,而是源于实际开发中的诸多经验教训。 首先,箭头函数最显著的特点是不绑定自己的this,而是继承外部作用域的this值。乍一看,这似乎是个优点,但在某些场景中却可能引发严重的bug。例如,考虑下面的代码: 在调 ...
JavaScript is a sprawling and ever-changing behemoth, and may be the single-most connective piece of web technology. From AI ...
Peter looks at how to call a JavaScript function from your TypeScript code and do it in a type-safe way. Along the way, he dramatically simplifies a Backbone application by integrating Knockout. I ...
A monthly overview of things you need to know as an architect or aspiring architect. Senyo Simpson discusses how Rust's core values lead to "fearless programming." He shares front-line experience with ...
Of all the hats JavaScript can wear, its form-processing features are among the most sought and used. Learn how to use JavaScript for form processing, validation, and more. Forms are an essential part ...
It would be great if you could call Blazor C# methods from your JavaScript code. Right now, that's not quite possible: Simply calling Blazor C# from JavaScript won't work (you'll get a message about a ...
The perceptions that critical operations are performed on the server side and that all data is stored there are incorrect. What many browsers do today involves reaching out over an unencrypted ...
1. We ran a series of tests that verified Google is able to execute and index JavaScript with a multitude of implementations. We also confirmed Google is able to render the entire page and read the ...
At around 5:30PM ET on Tuesday, JavaScript broke. More specifically, npm, the package manager used by most JavaScript developers to source, test, and prepare their code for release, began failing. For ...
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