javascript - How to get files by dragging them to the browser?

If you click to upload on the page, you can click to get the files[0] in the input file; now the need is to drag the image directly from the desktop to the browser. How to get the first file in files[0]?

高洛峰 2017-06-12 09:25:02 0  1  752

Encountered the problem of being unable to access the data.json file and perform new card/component filtering

So I have my page set up to get the id from the previous page. If I click on image 4 it shows the url(/Food/4) and so on. So I got the correct information from the previous page. Now the problem I have is using fetch to get my data.json file, get the information from the json and then render the inf...

P粉032977207 2023-08-16 19:28:38 0  1  566

javascript - How to upload images to vue on the mobile phone

It is an input. After clicking it, you can open the gallery and select the picture I want. After that, I can get the picture address he selected and pass the data to the interface. I can write it myself, but I don’t know how to accept the picture address he selected. I hope a master can do it. tell ...

PHP中文网 2017-07-05 11:01:18 0  3  3461

javascript - How does JQuery get the ID of the current element through the dot mark button (how to get the ID of dynamic data)

1. The image in the picture and the candidate information displayed are all iterated by DataList. The purpose is to obtain the corresponding examination time, subject code and other information by clicking the mark button. To achieve this, click the mark button to send the current candidate's inform...

PHP中文网 2017-05-19 10:18:00 0  2  789

Problem: Images load too slowly

I made a craiglist-like website using Html, Css, Js, and Php. When the user clicks to upload an image larger than 1mb, the page becomes very slow or fails (503 error). There is no problem with images smaller than 100kb. There is a form on a php page with type=file input tag and preview img tag. >...

P粉676821490 2023-08-17 22:40:08 0  1  669

javascript - How to get the previous and next values ​​of the click event.

{Code...} The for loop has been traversed to bind the click event. When you click on picture 1, you can already get the value of href in the label (note: href is the jump link in the A label, and return false is to avoid jumping. ), now I want to get the previous label and next label when the curren...

大家讲道理 2017-06-30 09:58:43 0  2  901

Image not loading in page

I want to load sliding images in a web application and for this I am using Bootstrap carousel. Get pictures from the background. Images are stored in image state. Below is the JSON format for getting the data. images:[{SNO:'1',NAME:'image.jpg',PIC_NAME:'image'}] After uploading the images, they are ...

P粉238433862 2023-09-09 20:59:03 0  1  630

javascript - In html, images, JS, and CSS obtain resources on the server through the src or url of the tag. Does the server need to write a corresponding response for each resource?

Recently, Xiaobai is learning nodeJS. When I was doing network programming, I thought that the browser first sends an HTTP request to a page through the input address (the server responds to the request and returns an HTML file), and then the pictures, JS, and CSS in the HTML are passed through tags...

为情所困 2017-06-17 09:16:59 0  1  1046

javascript - Native JS and jQuety about setting image carousel timer

Regarding the image carousel, setting up automatic playback: If you use native JS code, I currently know two methods, the first one: {code...} The second one (where oBtnNext refers to a button obtained): { Code...} Here comes the point. The question is, if jQuery($("#next") is used is equi...

大家讲道理 2017-07-05 10:58:00 0  1  1070

javascript - Paste a piece of content with pictures and text. How to use js to get the picture and upload it to the server?

I need to paste a piece of content with text and pictures, but the pictures need to be uploaded to the server separately. How to select the pictures from the pasted content. .

扔个三星炸死你 2017-06-24 09:43:22 0  1  1340

I encountered some difficulties when developing the WeChat applet calculator. There is an error that I can't figure out, but it seems to be the same as what is written in the video. Please give me some guidance.

I encountered some difficulties when developing the WeChat applet calculator. There is an error that I can't figure out, but it seems to be the same as what is written in the video. I would like to ask for guidance. For example, if you enter: "7+7", the result will be displayed as 14 norma...

会玩的白先森 2018-03-24 16:43:36 0  1  1471

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  900

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  782

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  661

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  631

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  1053

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  538

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  734