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September 13, 2019 08:50
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Curry function to find sum of integers with different parameter usage
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| function sum() { | |
| let args = [...arguments]; | |
| if (args.length > 2) { | |
| let sumValue = 0; | |
| args.forEach(arg => { | |
| sumValue += arg; | |
| }); | |
| return sumValue; | |
| } | |
| if (args.length === 2) { | |
| return function() { | |
| return sum.apply(this, [...args, ...arguments]); | |
| }; | |
| } | |
| function single() { | |
| if (arguments.length === 0) { | |
| return sum.apply(this, args); | |
| } | |
| args = [...args, ...arguments]; | |
| return single; | |
| }; | |
| return single; | |
| } | |
| console.log(sum(2, 3, 4)); | |
| console.log(sum(2, 3)(4)); | |
| console.log(sum(2, 3, 4, 0, 1)); | |
| console.log(sum(2)(3)(4)()); | |
| console.log(sum(2)(3)(4)(0)(1)()); |
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