Javascript:Concat布尔函数

Question

我想写一个过滤多个标准数据的方法.这些标准应作为函数传递给filter-function,例如:

var products = [/* some data */];
function filterMyProducts(criteria) {
   return products.filter(/* I'm asking for this code */);
}

function cheap(product) {
    return product.price < 100;
}

function red(product) {
    return product.color == "red";
}

// find products that are cheap and red
var result = filterMyProducts([cheap, red]);

如何将数组中传递的条件与过滤器函数结合起来？我希望它们与布尔AND结合使用.

Answer 1

function validateProduct(listOfFunctions) {
    return function(currentProduct) {
        return listOfFunctions.every(function(currentFunction) {
            return currentFunction(currentProduct);
        });
    }
}

function filterMyProducts(criteria) {
    return products.filter(validateProduct(criteria));
}

Working Demo