在Node.js中的函数中使用“ this”

Question

I'm trying to get access to this in a function, but it's undefined.

function processEachPath(element, index, list) {
    logger.debug(this);

}

...

_.each(config, processEachPath);

Answer 1

You need to explicitly bind it to the function:

function processEachPath(element, index, list) {
    logger.debug(_this);
}

// ...

(processEachPath.bind(this))();