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Javascript Equivalent to Printf/String. Format

Sophia Al-Mansoor • • 21 min read
Javascript Equivalent to Printf/String. Format

I'm looking for a good JavaScript equivalent of the C/PHP printf() or for C#/Java programmers, String.Format() (IFormatProvider for .NET).

My basic requirement is a thousand separator format for numbers for now, but something that handles lots of combinations (including dates) would be good.

I realize Microsoft's Ajax library provides a version of String.Format(), but we don't want the entire overhead of that framework.

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56 Answers

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Current JavaScript

From ES6 on you could use template strings:

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

See Kim's answer below for details.

Sophia Al-Mansoor
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Sophia Al-Mansoor

Sophia analyzes international trade, startup ecosystems, retail transformation, and supply chain logistics for modern digital publications.