must match format: yyyy-MM-dd

Match with starts by character "#" and follow number inside string

4 enteros / coma o punto / 3 decimales

零宽断言比较复杂。保存了一些示例待不时之需 ()表示捕获分组，()会把每个分组里的匹配的值保存起来，从左向右，以分组的左括号为标志，第一个出现的分组的组号为1，第二个为2，以此类推 (?:)表示非捕获分组，和捕获分组唯一的区别在于，非捕获分组匹配的值不会保存起来 正则表达式的先行断言和后行断言一共有 4 种形式：...

regular expression to pull all css classes from a html file.

Validate CSS Names

正则表达式查找"key":"value"对

match url

Regex to lint the first line of a commit

^

fr

Regex adding a string (here vs_) after 1st matching occurence (of reflectance_\d_).

It will extract the root domain from any URL. This includes removing subdomains, www. and the slug.

Sheets treats quote marks weird since that's a character used in formulas. This is the remedy for that. It does not work in the editor. This only works in Google Sheets

Extracting the variable names, e.g. (DOB_TT, OSTATE, etc) by setting up capture groups and extracting the 5th capture group

This determines if URL has trailing slash

alphabetically Scripted

Accept full name with white space, hyphen, dot, apostrophe, small letters, large letters, accented letters

Regex for accounts names without space

Password regex not allowed space