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我无法将此箭头函数转换为普通函数。我已经在 chrome 的控制台面板中对此进行了测试。这段代码摘自freecodeCamp.org Es6课
//This is what I have tried. The final output result is showing undefined
const realNumberArray = [4, 5.6, -9.8, 3.14, 42, 6, 8.34, -2];
const squareList = function(arr) {
"use strict";
const squaredIntegers = function(num) {
(function() {
arr.filter(Number.isInteger(num) && num > 0);
});
return squaredIntegers;
}
}
const squaredIntegers = squareList(realNumberArray);
console.log(squaredIntegers);
//Here is the Arrow function I was trying to convert
const realNumberArray = [4, 5.6, -9.8, 3.14, 42, 6, 8.34, -2];
const squareList = (arr) => {
"use strict";
const squaredIntegers = arr.filter(num => Number.isInteger(num) && num > 0);
return squaredIntegers;
};
const squaredIntegers = squareList(realNumberArray);
console.log(squaredIntegers);
//The code should output this
[4, 42, 6];