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in this lecture lets learn what are subjects in rxjs and where and when do we use it a subject is a spatial type of observable that allows values to be multicasted to many observers in simple terms we use subjects for cross component communication lets understand what we mean by that so in this web page we have two components this is the first component and this is the second component in the first component we have a text box and a click button and in the second component we have an h3 element now these two components are not related to each other in any way these components does not have a parent child relationship now what we want is whenever a user enters something in this text box and clicks on this click button we want to pass this value from this component this first component to this second component and then we want to display this value here instead of this procademy okay so here we want to perform cross component communication between two components which are not related t
