Shulou(Shulou.com)06/01 Report--

Most people do not understand the knowledge points of this article "JavaScript how to remove repetitive characters in numbers", so the editor summarizes the following contents, detailed contents, clear steps, and certain reference value. I hope you can get something after reading this article. Let's take a look at this "JavaScript how to remove repetitive characters in numbers" article.

Deduplication methods: 1, use toString () and split () methods to convert numbers into character arrays; 2, use "[... new Set (arr)]" or "Array.from (new Set (arr))" statements to remove repeated characters; 3, convert the deduplicated array into numbers.

The operating environment of this tutorial: windows7 system, javascript1.8.5 version, Dell G3 computer.

JavaScript removes repetitive characters from numbers

In JavaScript, to remove repetitive characters from numbers, you can use the method of array de-duplication:

Convert numbers to character arrays first

In the use of Set to array de-weight.

Turns the array back to a number.

How to convert numbers to character arrays:

Var num=12345654123;var str = num.toString (); var arr=str.split ("")

Then use Set to remove the weight of the array, there are two ways:

Method 1:

Var newArr = [... new Set (arr)]

Method 2:

Var newArr = Array.from (new Set (arr))

The output results are consistent:

Finally, turn the array back to the number.

Var str=newArr.join (") var newNum=Number (str)

The above is about the content of this article on "how JavaScript removes repetitive characters from numbers". I believe we all have some 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 pay attention to the industry information channel.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.