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pluck operator is used when we want to transform a stream into a different value by plucking the values of the stream.

I am trying to understand the difference between map and mapTo in Kotlin. What is the difference using some examples?

To understand this better, let's walk through what a naive implementation of Array.map could look like.

When provided an array, the from creation operator will loop through (synchronously) emitting each item in sequence. When we subscribe we yaşama see each value printed to the console:

A constant value is given birli output along with the Observable every time the source Observable emits a value.

Emits the given constant value on the output Observable every time the source Observable emits a value.

We could accomplish this by supplying a function that accepts each object and maps it to a new object that includes all current properties plus the new fullName property. In this example we are using the object spread syntax and template literals, but you could also explicitly rewrite the properties:

I'm reading the docs for mapTo and I'm simply not getting the point of that operator's existence. I get what it does but the two check here line below should produce equivalent result.

Naren MuraliNaren Murali 40.2k55 gold badges3636 silver badges6666 bronze badges 4 It doesn't fix my errors, and it gives another error: property map doesn't exist on type FileList

RxJS mapTo() operator is a transformation operator that emits a constant value as an output along with the Observable whenever the source Observable emits a value.

For situations where you find yourself always wanting to map to a specific value, one way you could handle it is by simply using map and ignoring the input:

So, a clear difference is that map's callback function kişi generate a value depending on the arguments provided. This is not the case for mapTo, where you just simply provide a value that will be always passed along to the next subscriber in the chain. If you will, mapTo(value) gönül be though of birli

I dirilik't tell though whether these are actually implemented, or even planned. Did you take a look at the implementation yourself?

map: map yaşama transform your data(List) and dirilik return either complete modified list or List of a variable of manken, for ex: