example: you need to enter an image name in the input box, click the upload button to get the image in the project directory, and then upload it to the backend in the form of multipart form-data. Since there is no place to click to open the file box, I ...
currently, I want to upload thumbnails of pictures in batches at the front end. I want to save the image path to the database by calling an api, and upload the files to the server. How to do this? this part has not been touched. ...
I am using vux+cordova for development. you need to select pictures from the album, make thumbnails with base64 on the phone, compress them with canvas, and upload them in the form of blob. the code is as follows: reader.onloadstart = function() { ...
when I am working on the project, I use fileReader to upload the picture. After successfully getting the address of the picture, I assign it to the src attribute of img, but the picture is not displayed. <div class="upload-box"> <...
I haven t written much that ts, is also looking up angularjs while writing. What should I do to select a file at the front end and read it for base64,? My js level is still in the jquery era, please do not hesitate to comment pseudo code: import { C...
for (var i = 0; i < objJson.length; iPP) { if (dtString.indexOf(getHeadString(objJson[i].name)) == -1) { dtString += getHeadString(objJson[i].name) + , ; optgroup = $( <optgroup> ); optgroup.a...
has not written a stored procedure before. I encountered this problem for the first time and didn t understand it. I hope some great god can give me some advice! < span class= "emoji emoji-pray " > The sql statement is as follows : CREATE DEF...
mysqlword="xxxx" dbname="xxxx" tmpdb="yyyy" mysqldump $dbname -u root -p$mysqlword | mysql $tmpdb -u root -p$mysqlword xxxxyyyy mysql -u root -p MariaDB [(none)]> ...
I have also checked some tutorials on the Internet. At present, I can start in vscode, but I just can t enter debug mode. I hope someone can explain my following questions . launch.json configuration code is as follows { "name": "...
problem description I backfill in the date in a piece of data (framed in red) (framed in green), and click on the first piece of data to set the validity period of the invitation code, but I can t backfill it by clicking on the second piece of data. ...