prefer-get.md

Prefer get

When writing an expression like a && a.b && a.b.c just to make sure the path exists, it is more readable to use the functions _.get, _.set and _.has instead.

Rule Details

This rule takes one argument - the minimal depth (default is 3).

The following patterns are considered warnings:

var isThree = a && a.b && a.b.c === 3;

if (a && a.b && a.b.c) {
// ...
}

The following patterns are not considered warnings:

var isThree = _.get(a, 'b.c') === 3;

if (_.has(a, 'b.c')) {
// ...
}
 

When Not To Use It

If you do not want to enforce using get, you should not use this rule.