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The method of creating JavaScript array

2025-01-17 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Development >

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The knowledge of this article "JavaScript array creation method" is not understood by most people, so the editor summarizes the following content, detailed content, clear steps, and has a certain reference value. I hope you can get something after reading this article. Let's take a look at this "JavaScript array creation method" article.

The JavaScript array is used to store multiple values in a single variable.

Example

Var cars = ["Saab", "Volvo", "BMW"]

What is an array?

An array is a special variable that can store more than one value at a time.

If you have a list of items (for example, a list of car brands), storing the car brand in a single variable should look like this:

Var car1 = "Saab"

Var car2 = "Volvo"

Var car3 = "BMW"

But what if you want to traverse all the cars and find a specific value? What if there are not three car brands but three hundred?

The solution is an array!

Arrays can hold many values under a single name, and they can also be accessed by referencing index numbers.

Create an array

Using array text is the easiest way to create an JavaScript array.

Syntax:

Var array-name = [item1, item2, …]

Example

Var cars = ["Saab", "Volvo", "BMW"]

Spaces and line breaks are not important. Declarations can span multiple lines:

Example

Var cars = [

"Saab"

"Volvo"

"BMW"

]

Please do not write a comma after the last element (such as "BMW",).

There may be cross-browser compatibility issues.

The above is the content of this article on "the method of creating JavaScript array". I believe we all have a certain understanding. I hope the content shared by the editor will be helpful to you. If you want to know more about the relevant knowledge, please follow the industry information channel.

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