How to convert currency string to floating point number using Javascript

I have a textbox that will have a currency string in it and I need to convert that string to a double precision float to perform some operations. "$1,100.00"→1100.00 This needs to be done on the client side. I have no choice but to keep the currency string as input, but need to cast it to ...

P粉593118425 2023-08-23 22:49:40 0  2  702

Python basic knowledge quick questions

{Code...} In fact, the final requirement is this: there will be (multiple) spaces, (multiple) line breaks, (multiple) carriage returns and other whitespace characters in the middle and on both sides of the string. I want to convert these whitespace characters. into ";", is there any good w...

大家讲道理 2017-05-24 11:34:52 0  3  707

How to use for language

(1) Generate a file with 1000 lines, each line is the number of lines in the line; (2) Count the number of all characters in the file; (3) Count all 0 1 2 3 4 5 6 in the file The ten numbers 7 8 9 appear several times in total.

饮浮觞 zyq 2019-10-09 22:53:17 0  2  1468

PHP documentation for conditional polymorphic calls

For $item, there is a polymorphic recordable relationship. In the database, this is stored in the loggable_type and loggable_id fields in the items table (works in PHP 8+ and Laravel). For each $item within $items, I'm trying to type-hint it.

P粉127901279 2023-08-06 15:31:19 0  1  531

Why are the two return methods of the microtime() function in PHP different in precision?

Environment: CentOS 7.3.1611PHP 7.1.3 Code: {code...} Output: {code...} Question: Running the code repeatedly produces the same result. In the form of a string, it is easy to understand that the 8-digit millisecond value is output. Anyway, the last two digits are always 0. When output as a floating ...

習慣沉默 2017-05-24 11:33:37 0  1  628

Please tell me how to write a rotating square matrix of letters using js

Given two integers M and N, generate an M*N matrix. The elements in the matrix take the value of one of the 26 letters from A to Z. A is in the upper left corner, and the other numbers rotate clockwise. Place them in ascending order, and when it exceeds 26, A starts to fill in. For example, when M=5...

 修 2021-07-09 16:51:13 0  1  1114

Functionality without using <br> html to add line breaks

I'm currently learning VueJS and I've made a simple app that pulls information from an API and displays facts about a country based on a given 2 letter country code. Data retrieved from the API is mapped to country and properties. It stores detailed information about a country such as time zone, cur...

P粉567112391 2023-09-08 15:34:08 0  1  662

php gets operating system encoding

Recently, I was developing a project and used the scandir() function. I discovered a problem during the use: When I traversed the file, it appeared that the garbled code under Windows was not garbled under Linux. The tutorial found on the Internet said that the obtained file should be converted to g...

China丶Moli 2019-07-22 15:03:23 0  3  1327

Ways to fix issue 2003 (HY000): Unable to connect to MySQL server 'db_mysql:3306' (111)

I recently tried to containerize my FastAPIPython server (also for replication/doubling purposes). Before, I had just a MySQL server in a Docker container and everything was fine, but when I also made my web server a service, it couldn't connect to the MySQL server, so now the application doesn't wo...

P粉178132828 2023-09-05 11:18:47 0  1  830

Experiment with sorting after query limit

So this is my first question here, please forgive me if something is wrong. I'm trying to make a sort query based on constraints. So there is a Customers table with 90 records. I want to first perform a query limited to 3 records, and then sort the results of this query by a column called ContactNam...

P粉237125700 2023-09-05 14:46:42 0  1  730

CSS Grid: Create new row when child content overflows column width

I have a two column layout based on CSS grid. When the content of the second column exceeds 1fr I want to create a new row. As it currently stands, the content simply overflows the column. One requirement of this layout is that the items in the right menu column are in one row. I achieve this with: ...

P粉212114661 2023-09-05 15:18:28 0  1  619

PHP full text search functionality using AND, OR and NOT operators

Newbie question: I'm trying to implement a full text search on a search string using php and eloquent. $searchstring="+(victimsuspect)+crime-covid";$searchresult=RssItem::whereRaw("MATCH(description)AGAINST('$searchstring'INBOOLEANMODE)")->ge

P粉076987386 2023-09-05 15:06:32 0  1  581

Shortest way to convert all PHP types to string

I'm writing a general system that I hope can one day be applied to fields like medicine (i.e. it's "scientific"). I think the best way is to represent all the data in php with strings (true will be "true", false will be "false" and so on). The reason for this is that in...

P粉369196603 2023-09-05 15:34:44 0  1  1009

How to get average of DATETIME column in MySQL while grouping by other columns

I'm creating and populating a MySQL table using the following query: SETtime_zone='+00:00';CREATETABLEtimestamp_n_datetime(idINT,timeDATETIME,avg_timeDATETIME);INSERTINTOtimestamp_n_datetime(id,time,avg_time)VALUES("1","2023-01-0310:

P粉460377540 2023-09-05 11:46:21 0  1  508

Multi-device (mobile phone) synchronization - React Native

I'm trying to create a Lightshow that will launch on all users' mobile devices at the same time (can have up to 2000-3000 users). All users will use the Internet (Wi-Fi or mobile data). In our FE we use Apollo for subscriptions and it works like a charm. But the problem is, user A can get subscribed...

P粉151466081 2023-09-05 11:58:38 0  1  701

Spades, Diamonds, Hearts, Clubs => styles do not change font color in Chrome for Android

In Google Chrome on Windows, the card suit symbols (spades, hearts, diamonds, clubs) are colored correctly using the "style" attribute. Unfortunately, the same page displayed in Google Chrome on Android does not display the colors I defined but uses the default black and red. (See the atta...

P粉896751037 2023-09-05 15:25:13 0  1  762