Javascript 数组设置为多个字符串

我有一个JavaScript数组：

cities = ["LA", "NYC", "Riyadh", "Frankfurt"]

cities.toString函数将为我提供

"LA, NYC, Riyadh, Frankfurt"

我该怎么去

"LA", "NYC", "Riyadh", "Frankfurt"

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我能想到的最简单的方法是使用JSON.stringify并用slice删除第一个和最后一个字符，如下所示

var cities = ["LA", "NYC", "Riyadh", "Frankfurt"]
console.log(JSON.stringify(cities).slice(1, -1));
// "LA","NYC","Riyadh","Frankfurt"

console.log(cities.map(function (currentCity) {
    return '"' + currentCity + '"';
}).join(', '));
// "LA", "NYC", "Riyadh", "Frankfurt"

console.log(JSON.stringify(cities).slice(1, -1).split(",").join(", "));
// "LA", "NYC", "Riyadh", "Frankfurt"

如果您想要它，就像您在回答中提到的，使用map函数生成由双引号包围的新字符串，并最终将它们连接起来，如下所示

var cities = ["LA", "NYC", "Riyadh", "Frankfurt"]
console.log(JSON.stringify(cities).slice(1, -1));
// "LA","NYC","Riyadh","Frankfurt"

console.log(cities.map(function (currentCity) {
    return '"' + currentCity + '"';
}).join(', '));
// "LA", "NYC", "Riyadh", "Frankfurt"

console.log(JSON.stringify(cities).slice(1, -1).split(",").join(", "));
// "LA", "NYC", "Riyadh", "Frankfurt"

如果实际字符串中没有，那么可以像下面这样链接拆分和联接调用

var cities = ["LA", "NYC", "Riyadh", "Frankfurt"]
console.log(JSON.stringify(cities).slice(1, -1));
// "LA","NYC","Riyadh","Frankfurt"

console.log(cities.map(function (currentCity) {
    return '"' + currentCity + '"';
}).join(', '));
// "LA", "NYC", "Riyadh", "Frankfurt"

console.log(JSON.stringify(cities).slice(1, -1).split(",").join(", "));
// "LA", "NYC", "Riyadh", "Frankfurt"

您可以使用array函数使用任何分隔符连接数组元素，如：

var result = '"' + cities.join('", "') + '"' ;

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检查工作状态

如果要将数组更改为字符串，则有。它适用于您想要使用的任何分隔符：

var array = ["LA", "NYC", "Riyadh", "Frankfurt"];
var string = '"' + array.join('", "') + '"';
// Result: "LA", "NYC", "Riyadh", "Frankfurt"

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您将在哪种数据类型中存储多个字符串？