Created
May 9, 2024 16:08
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| const mergeArgs = (savedArgs, args, i = 0) => | |
| savedArgs.map((e) => { | |
| if (e === curry.placeholder && i < args.length) { | |
| return args[i++]; | |
| } | |
| return e; | |
| }); | |
| const curry = | |
| ( | |
| fn, | |
| vacantArgs = fn.length, | |
| savedArgs = [...new Array(vacantArgs)].map(() => curry.placeholder) | |
| ) => | |
| (...args) => { | |
| args = args.slice(0, vacantArgs); | |
| const filledArgs = args.filter((e) => e !== curry.placeholder).length; | |
| if (filledArgs >= vacantArgs) { | |
| return fn(...mergeArgs(savedArgs, args)); | |
| } | |
| return curry(fn, vacantArgs - filledArgs, mergeArgs(savedArgs, args)); | |
| }; | |
| curry.placeholder = Symbol(); |
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