printf

A limited (see further) printf format implementation for log messages. You can annotate string with special placeholders, which will be replaced with values from the argument list:

• %s - string
• %d - number
• %i - integer
• %f - float
• %j - JSON, under the hood we're resolving circular references (they will be replaced with "[Circular]")
• %o, %O - object, in our implementation, it's the same as %j
• %% - percent sign

Reference

declare function printf(template: string, replaces: unknown[]): string;

Example

import { printf } from '@neodx/log/utils';

printf('String: %s, Number: %d, Float: %f, JSON: %j', ['string', 42, 3.14, { foo: 'bar' }]);
// String: string, Number: 42, Float: 3.14, JSON: {"foo":"bar"}

Related

• createLoggerFactory API
• Formatting
• Inspired by pff