What problems should be paid attention to when using javascript function

Today, I would like to share with you the relevant knowledge of what problems you should pay attention to when using the javascript function. The content is detailed and the logic is clear. I believe most people still know too much about this knowledge, so share this article for your reference. I hope you can get something after reading this article.

1. Avoid using a large number of parameters. The function should specify two or less arguments. The fewer parameters, the easier it is to test the function, and objects can be used in the case of more parameters.

Function notifyUser (emailAddress) {/ / implementation}

2. A function should only do one thing, and do not perform multiple operations in a function.

Function createShape (type = "cube") {/ /...}

3. Do not use flags as arguments, because the function does more than it should.

Const shapeConfig = {type: "cube", width: 200 / / Exclude the 'height' key}; function createShape (config) {config = Object.assign ({type: "cube", width: 250, height: 250}, config);.} createShape (shapeConfig). These are all the contents of this article entitled "what problems to pay attention to when using javascript functions". Thank you for reading! I believe you will gain a lot after reading this article. The editor will update different knowledge for you every day. If you want to learn more knowledge, please pay attention to the industry information channel.