当前位置：网站首页>JS use regular expressions in g model and non g difference

JS use regular expressions in g model and non g difference

2022-08-10 22:41:00 【Breeze and drizzle_Linmumu】

Meaning

g is the abbreviation of global!It is to match all matching results.

Without g, in the regular process, the string is matched from left to right, if the match is successful, it will not continue to match to the right;
With g, it will pick out the correct matching string from beginning to end

Instance

var str = 'aaaaaaaa'var reg1 = /a/var reg2 = /a/gstr.match(reg1) // The result is: ["a", index: 0, input: "aaaaaaaa"]str.match(reg2) // The result is: ["a", "a", "a", "a", "a", "a", "a", "a"]

版权声明
本文为[Breeze and drizzle_Linmumu]所创，转载请带上原文链接，感谢
https://yzsam.com/2022/222/202208102158010325.html

边栏推荐

猜你喜欢

随机推荐