How to avoid no-param-reassign when setting a property on a DOM object

Question

I have a method which\'s main purpose is to set a property on a DOM object

function (el) {
  el.expando = {};
}

I use AirBnB\'s code style

Answer 1

As @Mathletics suggests, you can disable the rule entirely by adding this to your .eslintrc.json file:

"rules": {
  "no-param-reassign": 0
}

Or you could disable the rule specifically for param properties

"rules": {
  "no-param-reassign": [2, { "props": false }]
}

Alternatively, you could disable the rule for that function

/* eslint-disable no-param-reassign */
function (el) {
  el.expando = {};
}
/* eslint-enable no-param-reassign */

Or for that line only

function (el) {
  el.expando = {}; // eslint-disable-line no-param-reassign
}

You might also check out this blog post on disabling ESLint rules specifically to accommodate AirBnB's style guide.