Ramda 數組到多個參數 function

Question

給定字符串6-10的輸入，我想獲得一個數字列表[6,6.5,7,7.5,8,8.5,9,9.5,10] 。

這就是我想出的：

const x = "6-10";
const sizeMinMax = R.pipe(R.split('-'), R.map(parseInt))
sizeMinMax(x); //[6,10]

const sizesStepped = (min, max) => R.unfold(minSize => minSize > max ? false : [minSize, minSize + 0.5], min)
sizesStepped(8,10); // [8,8.5,9,9.5,10]

我如何 pipe sizeMinMax(x)的 output 是sizeStepped function 和 2 arguments 的數組？

Answer 1

你可以通過實現一個范圍方法在香草 JavaScript 中做到這一點。

 const range = (start, stop, step) => Array.from({ length: (stop - start) / step + 1 }, (_, i) => start + i * step); const x = '6-10'; const [s, e] = x.split('-'); const step = 0.5; const ret = range(+s, +e, step); console.log(ret);

Answer 2

包裝尺寸采用sizesStepped ：

 const sizeMinMax = R.pipe(R.split('-'), R.map(parseInt)) const sizesStepped = (min, max) => R.unfold(minSize => minSize > max? false: [minSize, minSize + 0.5], min) const fn = R.pipe(sizeMinMax, R.apply(sizesStepped)); const x = "6-10" const result = fn(x) console.log(result); // [8,8.5,9,9.5,10]

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