javascript regular expression (1)_javascript skills

Direct variable character of regular expression:

字符	匹配
o	NUL字符
t	制表符
n	换行符
v	垂直制表符
f	换页符
r	回车
xnn	由十六进制nn指定的拉丁符，比如：x0A等价于
uxxxx	unicode字符
cX	控制字符^X

JS reference of regular expression: var sEnd=new RegExp("s$"); ——String matching ending with s

Regular expression:

Verified characters:

has special meaning in regular expressions, they are:

^ $ . * ! : | / () [] {} We will research it later

If you use these punctuation marks as literals in regular expressions, they must be preceded by "" (escape character).

Other characters (such as @ and quotation marks) have no special meaning, and only match themselves according to the direct value in the regular expression. Note:——“”

Question: "A[B]C[D]E[F]G" is divided into two arrays, namely ACEG and [B][D][F].

Question: Both are looking for the

[B][D][F] array. Which one is better?

Method 1: var test1 = test.match(/[(w)*]/g);

Method 2: var s = /[(w)*]/g;
var result;
var test1 = [];

while ((result = s.exec(test)) ! = null) { test1.push(result[0]); }