Programming in D: The Ultimate Guide for Software Engineers/

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Format Specifiers: Formatted Element Output

Format Specifiers: Formatted Element Output

This lesson explores the formatted element output part of the format specifiers.

We'll cover the following...

Formatted element output #

Format specifiers between %( and %) are applied to every element of a container (e.g. an array or a range):

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import std.stdio;
void main() {
    auto numbers = [ 1, 2, 3, 4 ]; 
    writefln("%(%s%)", numbers);
    
}

The format string above consists of three parts:

  • %(: start of element format

  • %s: format for each element

  • %): end of element ...