Consider the following RxJS code snippet from the "Functional Reactive Programming" chapter: const columns = of('A', 'B', 'C');
const rows = range(3);
columns.pipe(
mergeMap(column = rows.pipe(
map(row = [column, row])
))
).subscribe(console.log); What will be logged to the console?

Question

Consider the following RxJS code snippet from the "Functional Reactive Programming" chapter: const columns = of('A', 'B', 'C'); 
 const rows = range(3); 
 columns.pipe( 
   mergeMap(column => rows.pipe( 
     map(row => [column, row]) 
   )) 
 ).subscribe(console.log); What will be logged to the console?

Answer

None of the options is correct.

Answer

Observable, Observable, Observable

Answer

[0, "A"], [1, "A"], [2, "A"], [0, "B"], [1, "B"], [2, "B"], [0, "C"], [1, "C"], [2, "C"]

Answer

["A", 0], ["A", 1], ["A", 2], ["B", 0], ["B", 1], ["B", 2], ["C", 0], ["C", 1], ["C", 2]

Answer

["A", 0], ["B", 0], ["C", 0], ["A", 1], ["B", 1], ["C", 1], ["A", 2], ["B", 2], ["C", 2]

Crowdly

Consider the following RxJS code snippet from the "Functional Reactive Programmi...

Want instant access to all verified answers on learning.monash.edu?