How does javascript match the specific quantity?

This article mainly introduces the relevant knowledge of "how to match the specific quantity of javascript". Xiaobian shows you the operation process through actual cases. The operation method is simple, fast and practical. I hope this article "how to match the specific quantity of javascript" can help you solve the problem.

description

The number of bracketed specifiers can be used to specify the upper and lower limits of a matching pattern. But sometimes only a certain number of matches are needed.

To specify a certain number of matching patterns, simply place a number between braces.

examples

Requires that the regular expression timRegex be modified to match the word Timber, which has only four letters m. let timStr = "Timmmber";let timRegex = /change/; //modify this line let result = timRegex.test(timStr); refer to let timStr = "Timmmber";let timRegex = /tim{4}ber/i; //modify this line let result = timRegex.test(timStr); The content of "how to match the specific quantity of javascript" is introduced here. Thank you for reading. If you want to know more about industry-related knowledge, you can pay attention to the industry information channel. Xiaobian will update different knowledge points for you every day.