How to generate a comma separated string from array in JavaScript

Use the arr.join([separator]) function. The separator specifies a string to separate each pair of adjacent elements of the array. The separator is converted to a string if necessary. If omitted, the array elements are separated with a comma (“,”). If separator is an empty string, all elements are joined without any characters in between them.

    private generateBlogPostHeader(commaSeparatedListOfTags: string, snippet: Snippet): string {
        let header: string = '';

        header += 'categories: [snippets]\n';
        header += `tags: [${snippet.tags.join(',')}]\n`;
        header += '---\n';

        return header;

You can also use the toString() method in this particular case with the same result

header += `tags: [${snippet.tags.toString()}]\n`;

Reference -

Shared with from 👉 Use the Copy to mine functionality to copy this snippet to your own personal collection and easy manage your code snippets.

Subscribe to our newsletter for more code resources and news

Adrian Matei (aka adixchen)

Adrian Matei (aka adixchen)
Life force expressing itself as a coding capable human being

Dynamically expand angular material panel when condition met

Dynamically expand angular material panel when condition met code snippet Continue reading

Copy to clipboard with angular material

Published on October 12, 2022