const newObject = {...oldObject,wantToDeleteKey1:undefined,wantToDeleteKey2:undefined}
delete newObject. wantToDeleteKey1
delete newObject. wantToDeleteKey2
2024/03/08
2024/03/03
gorm,update zero value
db.Select("*").Omit("CreatedAt").Updates(d)
=>will update zero values in d
golang,string,containsAny,
strings.ContainsAny("hello", "open")
=>true
because the character o,e
2024/03/02
div, change line code
whitespace-per-line
2024/02/29
how to set file name when upload file,react
const modifiedFile = new File([file], "_icon.jpg", { type: file.type });
const formData = new FormData();
formData.append("file", modifiedFile);
javascript, join object array
objArray.map(obj=>obj.a).join(',')
- map
-join
yarn uninstall
yarn remove xxx
yarn add xxxx
2024/02/28
Docker not found when freshly installed on Mac
Docker not found when freshly installed on Mac
- Docker Desktop -> Settings -> Advanced -> Choose System, not User -> Click [Apply & restart]
2024/02/27
Arrow function vs Function declaration
- arrow function can not use this
- arrow function must be defined before use
- Function declaration can use new
spring boot test,spring context
- get value from application.yaml
- use environment
- use profile
- @component
- component scan
- initialize the component
- add it to spring application context
- can get the bean from application context
- @Component equals @Bean in a @Configuration
- can use @SpringBootTest to load spring application context