Append elements of an array to a string

Question

I have an array and also a string. How do I add each element of an array to the string dynamically as the array length might vary?

var array = ["123", "456"];

var str = 'Select * from abc where column_name IN (' + array [0] + ',' + array [1] + ')';

console.log(str);

Ori Drori · Accepted Answer · 2018-02-21 21:00:03Z

3

Use Array.join() on the array:

var array = ["123", "456", "789"];

var str = 'Select * from abc where column_name IN (' + array.join() + ')';

console.log(str);

You can also use a template literal instead of string concatenation:

var array = ["123", "456", "789"];

var str = `Select * from abc where column_name IN (${array.join()})`;

console.log(str);

answered Feb 21, 2018 at 21:00

Ori Drori

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