Tho*_*ggi 32 javascript underscore.js
提供这种逻辑的最好(最干净)方法是什么?
var colors = ["red","white","blue"];
logic(colors,["red","green"]); //false
logic(colors,["red"]); //true
logic(colors,["red","purple"]); //false
logic(colors,["red","white"]); //true
logic(colors,["red","white","blue"]); //true
logic(colors,["red","white","blue","green"]); //false
logic(colors,["orange"]); //false
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可能使用underscore.js?
Fel*_*ing 40
假设数组中的每个元素都是唯一的:将长度hand与两个数组的交集长度进行比较.如果它们相同,则所有元素hand也在colors.
var result = (hand.length === _.intersection(hand, colors).length);
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Ser*_*kiy 19
也许差异就是你要找的东西:
_(hand).difference(colors).length === 0
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