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javascript - Regular expression /(\d)(?=(\d{3})+\.)/g

How to add a comma to every three digits of the number to the left of a floating point number, such as converting 12000000.11 into "12,000,000.11"? function commafy(num){ {code...}} I don't know how to understand this regular rule. /(d)(?=(d{3})+.)/g I don’t know how it works.

伊謝爾倫 2017-05-19 10:35:23 0  1  799

<?php //$a*d = 345; //$China = 123; ?>

<?php//$a*d = 345;//$China = 123;?>What do the double slashes mean in front of the two variable values? !

大石碎胸口 2017-11-22 16:01:05 0  3  1629

How does vim achieve the function of ctrl+d in sublime?

Ctrl+D works well in Sublime, how to do it in vim?

大家講道理 2017-05-16 16:35:02 0  2  795

git clean -d -fx deleted files, how to undo the deleted files?

git clean -d -fx deleted files, how to undo the deleted files?

阿神 2017-05-02 09:38:25 0  2  995

It was scanned out by D shield. How to remove this eval backdoor?

It was scanned out by D shield. How to remove this eval backdoor?

康康 2020-06-03 11:54:45 0  2  2359

angular.js - How to get the two characters "B" and "D" in angular js in json{B:["Beijing", "Baoding", "Baotou"], D:["Dalian", "Dandong"]}

json {B:["Beijing", "Baoding", "Baotou"], D:["Dalian", "Dandong"]}, how to get the two characters "B" and "D" in angular js

伊謝爾倫 2017-05-15 17:06:26 0  1  649

hexo builds a blog on Github, but hexo d has no response

There is no problem with the SSH connection, but neither hexo g nor hexo d responds. Solution. Did I install something missing or something?

PHPz 2017-05-02 09:49:06 0  4  1734

Fatal error: Uncaught exception 'Exception' with message '注冊(cè)失敗' in D:\phpStudy\WWW\api\lib\User.php:84 Stack trace: #0 D:\phpStudy\WWW\api\index.php(6): User->register('admin1', 'admin1') #1 {main}

First of all, declare that the database is normal. The primary key of the user table is incremented. Please answer the error. Fatal error: Uncaught exception 'Exception' with message 'Registration failed' in D:\phpStudy\WWW\api\lib\User.php:84 Stack trace: #0 D:\phpStudy\WWW\api\index.php(6)

dahai 2017-08-12 00:01:30 0  1  1446

The template file does not exist: D:\phpstudy_pro\WWW\tp6\app\view\view_test\demo1.html

Cannot be displayed: The template file does not exist: D:\phpstudy_pro\WWW\tp6\app\view\view_test\demo1.html

P粉653371603 2022-01-18 16:17:11 0  3  1656

How does php get the specific Y-m-d H:i:s time through millisecond timestamp?

How does php obtain the specific Y-m-d H:i:s time through the millisecond timestamp? For example, the millisecond timestamp is: 1492396179000 and the corresponding format is: 2017-04-17 10:29:39

PHPz 2017-05-16 13:12:50 0  2  607

How to completely transfer the PHP programmer toolbox to the D drive?

I have restored the C drive of my computer. Every time I restart and log in to the PHP Programmer Toolbox, I have to reinstall it and the configuration is lost. It is very troublesome. Please explain how to save the PHP Programmer Toolbox program and all configurations to D. I also tried installing ...

phpcn_u19250 2017-08-28 13:01:21 0  1  1408

Wz.php error, please check Fatal error: Class 'Wz' not found in D:\Phpstudy\PHPTutorial\WWW\zszs\dada.php on line 21

Wz.php error, please check Fatal error: Class 'Wz' not found in D:\Phpstudy\PHPTutorial\WWW\zszs\dada.php on line 21 What is happening?

移動(dòng)用戶-7162220 2019-04-08 21:14:56 0  2  1198

//The maximum value range of hexadecimal is 0-f, that is, 0,1,2,3,4,5,6,7,8,9,a,b,c,d,e,f among which, f Line break

//The maximum value range of hexadecimal is 0-f, that is, 0,1,2,3,4,5,6,7,8,9,a,b,c,d,e,f among which, f Should I use /**/ for line breaks?

. 2018-07-09 06:44:30 0  1  1972

Warning: mysql_fetch_assoc(): The argument supplied in D:\AppServ\www\xiangmu\demo2.php on line 9 is not a valid MySQL result resource. What is the problem?

Warning: mysql_fetch_assoc(): The argument supplied in D:\AppServ\www\xiangmu\demo2.php on line 9 is not a valid MySQL result resource

陳陣陣。 2017-12-09 15:37:31 0  1  1319

javascript - Regular expression /(\d)(?=(\d{3})+\.)/gIf ?= is changed to ?: Why are the results different?

I remember? :and? =Almost the same, but? : capture while? =do not capture

高洛峰 2017-05-19 10:35:15 0  2  384

Why do the same expressions in php and js output different results?

$d = 20;echo $d + ($d++) + (++$d); The result is 63 in PHP and 62 in js. Why is this?

違心 2021-03-10 11:02:18 0  1  963

nginx pseudo-static

There are more than 10 pseudo-static parameters, how to write rewrite /index/([a-z]+)-(d+)-(.)-(.)-(d+)-(.)-(.)-(d+)-1- 1-(d+)-(d+)-(d+).html$ /index.php?type=$1&cid=$2&q=$3&commission=$4&volume=$5&price_start

過去多啦不再A夢(mèng) 2017-05-16 17:17:31 0  2  847

javascript - Newbie asking for help: Why does Console.log here return undefined?

function d(){this.get=function(){this.getNum()}};d.prototype.getName=function(){return 3;};var d = new d();console.log(d. get());//undefined Why is undefined displayed here? Instead of 3? Ask for answers

滿天的星座 2017-05-19 10:46:15 0  6  662

nginx root directory

D:/test/prj1 or D:\test\prj1

阿神 2017-05-16 17:18:57 0  1  488

javascript - optimization of a regular expression

Match the integer of 1024-65535, that is, 65535 &gt;= x &gt;= 1024. Use regular expressions to write it. Mine is /^(102[4-9]|10[3-9]d{1}|1[ 1-9]d{2}|[2-9]d{3}|[1-5]d{4}|6[0-4]d{3}|65[0-4]d{2} |655[0-2]d{1}|6553[0-5])$/ Is there a more concise and optimized way to write it?

伊謝爾倫 2017-05-19 10:09:54 0  4  678