[英]ESLint prefer-arrow-callback error
I've got a problem with ESLint 我的ESLint有问题
Here is my function: 这是我的功能:
$productItem.filter(function (i, el) {
return el.getBoundingClientRect().top < evt.clientY
}).last()
.after($productItemFull)
And Here is what ESLint tell me: 以下是ESLint告诉我的内容:
warning Missing function expression name func-names
error Unexpected function expression prefer-arrow-callback
How to solve this error? 如何解决这个错误?
It is basically saying to use Arrow function syntax in the filter
callback function. 它基本上是说在
filter
回调函数中使用箭头函数语法。
$productItem.filter((i, el) => el.getBoundingClientRect().top < evt.clientY)
// ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
.last()
.after($productItemFull);
Here's what ESLINT documentation for prefer-arrow-callback
says 以下是
prefer-arrow-callback
ESLINT文档
Arrow functions are suited to callbacks, because:
箭头函数适用于回调,因为:
this
keywords in arrow functions bind to the upper scope's.箭头函数中的
this
关键字绑定到上部范围。The notation of the arrow function is shorter than function expression's.
箭头函数的表示法比函数表达式短。
And, in following cases the error will be thrown 并且,在以下情况下,将抛出错误
/*eslint prefer-arrow-callback: "error"*/ foo(function(a) { return a; }); foo(function() { return this.a; }.bind(this));
Your code is same same as the first snippet. 您的代码与第一个代码段相同。 So, the error
prefer-arrow-callback
is shown by ESLint. 因此,ESLint显示错误
prefer-arrow-callback
。
To solve the error, you can 要解决错误,您可以
Suppress the error by using options and named function 使用选项和命名函数来抑制错误
/*eslint prefer-arrow-callback: ["error", { "allowNamedFunctions": true }]*/ foo(function bar() {});
解决“ 意外函数表达式。(prefer-allow-callback) ”错误在eslint中在代码的开头写下这段代码:
/*eslint prefer-arrow-callback: 0*/
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