试图分析这段代码,但不确定它的作用?这如何演示函数在 JS 中的工作方式?对不起,新手的问题。使困惑?谢谢。
function merge(root) {
for (var i = 1; i < arguments.length; i++) {
for (var key in arguments[i]) {
root[key] = arguments[i][key];
}
}
}
var merged = merge(
{name: "Batou"},
{city: "Niihama"},
(activity: "Weights", min: 0, max: 35, points: 2500, scale: "sum"});
assert(merged.name === "Batou",
"The original name is intact.");
assert(merged.max === 35,
"The maximum number of sets is 35.");