使用JS的join()方法将自定义字符串追加到array的元素之前,可以按照以下步骤进行操作:
var array = ["apple", "banana", "orange"];
var customString = "fruit";
var result = array.join(customString);
console.log(result);
完整的代码示例如下:
var array = ["apple", "banana", "orange"];
var customString = "fruit";
var result = array.join(customString);
console.log(result);
运行以上代码,将会输出以下结果:
applefruitbananafruitorange
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