Getting Access to the Log

A Log listener allows you to capture and handle log messages generated during the compilation processs. When you compile Less code using the less.render function, the compiler may produce log messages, such as warnings or errors.

Syntax:

const result = less.render(lessCode, options);
console.log(result);

Example: To add log listener in your code here is the example.

less.logger.addListener({
    debug: function (msg) {
    },
    info: function (msg) {
    },
    warn: function (msg) {
    },
    error: function (msg) {
    }
});

All functions are optional. An error will not be logged, but instead is passed back to the callback or promise in less.render.

Programmatic usage of Less.js involves utilizing the Less JavaScript API to compile Less code into CSS dynamically. This is commonly done in web development to generate stylesheets on the fly or to integrate Less.js into build processes.