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This article mainly introduces "what matters should be paid attention to when using the javascript function". In the daily operation, I believe that many people have doubts about what matters need to be paid attention to when using the javascript function. The editor consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful to answer the doubts of "what matters need to be paid attention to when using the javascript function". Next, please follow the editor to study!

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); at this point, the study on "what matters need to be paid attention to when using javascript functions" is over, hoping to solve everyone's doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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