使用util.format，在数组中的每个字符串周围用双引号引起来

Question

At the moment ..

var util = require("util");

var carsInput = 'seat,ford';
var cars = carsInput.split(',');

var queryString = util.format('Cars: [%s]', cars);
console.log(queryString); // Cars: [seat,ford]

This is the aim:

Cars: ["seat","ford"]

Is there a way to do this with util.format or do i need to loop and add the quotes to each element?

Answer 1

It's actually as simple as:

var util = require('util');

var carsInput = 'seat,ford';
var cars = carsInput.split(',');

var queryString = util.format('Cars: %j', cars);
console.log(queryString); // Cars: ["seat","ford"]

Where %j is for JSON

Read more on the docs

Answer 2

Here is a way to not loop, at least not explicitly. It does not strictly answer your questions, since I do not have access to utils.format. Before you make your queryString say:

cars = cars.map(function(s){ return '"'+s+'"';});