take

signature: take(count: number): Observable

If you want to take a variable number of values based on some logic, or
another observable, you can use takeUntil or
!

Example 1: Take 1 value from source

( jsBin |
)

Example 2: Take the first 5 values from source

Example 3: Taking first click loclation

(jsFiddle)

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  - André Staltz