加入用引号括起来的每个值的数组javascript [英] join array enclosing each value with quotes javascript

问题描述

如何将一个数组连接成一个字符串并同时将每个值包含在这个字符串中

How can join an array into a string and at the same time enclosing each value into this

'1/2/12','15/5/12'

'1/2/12','15/5/12'

for (var i in array) {
    dateArray.push(array[i].date);
}
dateString=dateArray.join('');
console.log(dateString);

推荐答案

如果你的日期已经是字符串，你可以做以下操作

If your dates are already strings, you can do the following

var dates = ['1/2/12','15/5/12'];

console.log("'" + dates.join("','") + "'");

然而，一种更酷、更简单的方法(对于没有日期的情况)是 Array.prototype.map

However, a cooler and more foolproof way (for the case with no dates) way would be Array.prototype.map

// Array.prototype.map returns a new array by 
// mapping each element in the existing array
dates.map(function(date){
    // Wrap each element of the dates array with quotes
    return "'" + date + "'";
}).join(","); // Putsa comma in between every element

或者在 es6 行话中

Or in es6 lingo

dates.map(date => `'${date}'`).join(',');

http://jsfiddle.net/yMvVh/

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