mini blog / notes
let months = [ {month: 1, data1: "test1", data2: "test2"}, {month: 2, data1: "test1", data2: "test2"}, {month: 3, data1: "test1", data2: "test2"} ]; let monthsAsMap = months.reduce((map, obj) => { map[obj.month] = obj; return map; }, {}); console.log(monthsAsMap); console.log(monthsAsMap[’2’]);let months = [ {month: 1, data1: "test1", data2: "test2"}, {month: 2, data1: "test1", data2: Read more about array to map with reduce()[…]
public interface EventRepository extends JpaRepository<Event, Long> { @PreAuthorize("@securityService.canSave(#event,principal)") Event save(@Param("event") Event event); } @Service("securityService") public class SecurityService { public boolean canSave(Event event, UserDetails principal) { // some logic here } }public interface EventRepository extends JpaRepository<Event, Long> { @PreAuthorize("@securityService.canSave(#event,principal)") Event save(@Param("event") Event event); } @Service("securityService") public class SecurityService { public boolean canSave(Event Read more about @PreAuthorize with use Spring Expression Language (SpEL) and service method call[…]
Substring $ a=teststring $ echo ${a:2:5} ststr Remove prefix (#) $ a=text_test.txt $ echo ${a#*_} test.txt Remove suffix (%) $ a=text_test.txt $ echo ${a%.txt} text_test
@Component({ … }) export class TestingComponent implements OnInit { units: any; constructor(private restService:RestService) { } ngOnInit() { this.units = this.restService.getUnits(); } }@Component({ … }) export class TestingComponent implements OnInit { units: any; constructor(private restService:RestService) { } ngOnInit() { this.units = this.restService.getUnits(); } } Template <ng-template #loading>Loading…</ng-template> <div *ngIf="units|async as units; else loading"> <span *ngFor="let unit Read more about AsyncPipe example[…]
DBCC DROPCLEANBUFFERS; SELECT * FROM TABLE_X …DBCC DROPCLEANBUFFERS; SELECT * FROM TABLE_X … More info
java -Dspring.profiles.active=dev,other -jar spring-app.warjava -Dspring.profiles.active=dev,other -jar spring-app.war Spring Profiles
Theirs on top git pull -s recursive -X theirs <remote> <branch> git merge -s recursive -X theirs <branch> My on top git pull -s recursive -X ours <remote> <branch> git merge -s recursive -X ours <branch>
Show diff ONLY for src/main/resources/file.xml git log -p src/main/resources/file.xml Show diff for ALL FILES that touches src/main/resources/file.xml git log -p –full-diff src/main/resources/file.xml
var async = require(’async’); var files = [’file1′,’file2′,’file3’]; var urls = [’url1′,’url2′,’url3’]; var down = function(url, file, callback) { setTimeout(function(){ var r = Math.random() >= 0.5; console.log(’— end ‘+file+’, ‘+url+’, ‘+r); callback(r); }, 1000); }; async.concat(files, function(file, callback){ async.someSeries(urls, function(url, callback1){ down(url, file, function(isOk){ callback1(null, isOk); }); }, function(err, r){ callback(err, r); Read more about async.js – download multiple files from multiple urls to first success[…]
To make local port 1234 forwarding to remote hostA port 21: plink -v -C -N -L 1234:hostA:21 user@hostB ssh -L 1234:hostA:21 user@hostB Now You can connect to localhost:1234 to access hostA:21 by tunnel created with hostB. To accept connection from other hosts (not local only): plink -v -C -N -L 0.0.0.0:1234:hostA:21 user@hostB ssh -L 0.0.0.0:1234:hostA:21 user@hostB