How to merge an array of objects into a single string?-CodePudding

I try to merge an array of objects into a single string, but got a bit lost. The input looks like that:

  const array = [
    {
      key: "title",
      text: " Example Text title",
    },
    {
      key: "description",
      text: "Example Text description",
    },
    {
      key: "video",
      text: "Example Text video",
    },
  ];

Expected Output:

"title: Example Text title, description: Example Text description, video: Example Text video"

Thanks for any hint.

CodePudding user response：

Since you want a single string out of this, and not an array, you will want to use Array.forEach to concatenate onto an existing string object, like so:

let outStr = '';

array.forEach((ele, idx) => 
    outStr  = `${ele.key}: ${ele.text}${idx < array.length ? '' : ', '}`
);

You could also use Array.map like the folks in the comments above suggested, but you will need to join the result to produce a single string at the end.

CodePudding user response：

const array = [
    {
      key: "title",
      text: " Example Text title",
    },
    {
      key: "description",
      text: "Example Text description",
    },
    {
      key: "video",
      text: "Example Text video",
    },
];

let result = "";

array.forEach((object, index) => {
    result  = `${object.key}: ${object.text}`
    if(index < array.length - 1) {
        result  = ', ';
    }
});

console.log(result);

CodePudding user response：

I hope the following is useful for you.

const array = [
    {
      key: "title",
      text: " Example Text title",
    },
    {
      key: "description",
      text: "Example Text description",
    },
    {
      key: "video",
      text: "Example Text video",
    },
  ];

array.map(item => `title: ${item.text}, description: ${item.text}, video: ${item.text}`).toString()

//'title:  Example Text title, description:  Example Text title, video:  Example Text title,title: Example Text description, description: Example Text description, video: Example Text description,title: Example Text video, description: Example Text video, video: Example Text video'