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This article mainly introduces "how to create an array with a variable number of js". In the daily operation, I believe that many people have doubts about how to create an array with a variable number of js. The editor consulted all kinds of materials and sorted out a simple and useful method of operation. I hope it will be helpful to answer the question of "how to create an array with a variable number of js". Next, please follow the editor to study!

1. The Array.of () method creates a new array instance with a variable number of arguments, regardless of the number or type of parameters.

Array.of (7) creates an array with a single element 7, while Array (7) creates an empty array of length 7 (note: this is an array of seven empty, not an array of seven undefined).

Grammatical format

Array.of (any parameter)

2. The parameters of this method can be any, and these parameters will become the elements in the returned array in order.

Example

Var nums=new Array.of (7); console.log (nums); at this point, the study of "how to create an array with a variable number of js" 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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