如何使用2+参数函数以无点样式编写

Question

I'm trying to implement this pointful function

const getItem = (items, id) => items.find(item => item.id === id);

in point-free style using ramda.js.

When i use something like this:

const getItem = find(propEq('id'));

the first parameter items will be passed to find function, but we will lose 2nd id parameter.

The question is, how to implement getItem function in point-free style?

Answer 1

If you are free to change the order of arguments of the function, useWith is a simple solution:

 const getItemById = R.useWith( R.find, [R.propEq('id')] ); console.log( getItemById( 'b', [{ id: 'a' }, { id: 'b' }] ) ); 

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