[英]Get rid of eslint@typescript-eslint/no-unused-vars error when index is not used in map function typescript
I got this code:我得到了这个代码:
const reducer = (element:number, index: number) => [element]; //es lint error.
const positionsArray = $.map(this.positions, reducer);
I am casting a Float32Array (it is this.positions) to a js array.我正在将一个 Float32Array(它是 this.positions)转换为一个 js 数组。 I get the error: 'index' is defined but never used.eslint@typescript-eslint/no-unused-vars
我收到错误:'index' 已定义但从未使用过。eslint@typescript-eslint/no-unused-vars
I cannot apply the "// eslint-disable-line no-unused-vars" (which btw I dont think is a pleasant solution)我不能应用“// eslint-disable-line no-unused-vars”(顺便说一句,我认为这不是一个令人愉快的解决方案)
How to get rid of this error for this case that I don't need the index?在我不需要索引的情况下,如何摆脱这个错误? I checked reduce and try to retrieve the accumulator but did not achieve it.
我检查了 reduce 并尝试检索累加器,但没有实现。 Thanks.
谢谢。
EDIT: If I dont define the index I get this error:编辑:如果我不定义索引,我会收到此错误:
Don't define the parameter.不要定义参数。 Neither TypeScript nor JavaScript requires you to use all parameters that a callback might accept.
TypeScript 和 JavaScript 都不要求您使用回调可能接受的所有参数。
You can also convert the typed array to a normal array by invoking the iterator - it looks like jQuery's .map
doesn't behave well with it, so use plain JS instead:您还可以通过调用迭代器将类型化数组转换为普通数组 - 看起来 jQuery 的
.map
与它表现不佳,因此请改用普通 JS:
const positionsArray = [...this.positions].map(element => [element]);
If you just want to get a plain array from the typed array, don't use .map
, just invoke the iterator alone:如果您只想从类型化数组中获取一个普通数组,请不要使用
.map
,只需单独调用迭代器:
const positionsArray = [...this.positions];
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