What are the JavaScript Equivalents to printf or String.Format?

JavaScript Equivalent to printf/String.Format

In JavaScript, there are multiple options for formatting strings:

• Template strings (ES6 ): Using template literals ( ), you can embed the values to be formatted directly into the string:

  const amount = 10;
  console.log(`This is ${amount} times easier!`); // "This is 10 times easier!"

• sprintf.js: This library provides a sprintf function that mimics the functionality of C's printf. It supports various format specifiers and has comprehensive documentation.

• Simultaneous replacements: If you need more complex formatting, consider using simultaneous replacements. This involves replacing all format sequences at once using a regular expression:

  const text = "Amount: {0}, Date: {1}";
  const values = ["0", "2023-02-08"];
  console.log(text.replace(/\{(\d+)\}/g, (match, index) => values[index])); // "Amount: 0, Date: 2023-02-08"

• Microsoft Ajax String.Format: If you're using the Microsoft Ajax library, it provides a String.Format function equivalent to the one in .NET. However, note that using the entire Ajax library just for formatting may be an overkill.

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