Difference between 2 type of displaying data in Angular 2

Question

I have some Angular2 code:

and

Note:

Answer 1

1) NOTE : don't use "" & {{}} together else value will be stringified.

src="{{value}}" 

value will always be stringified.

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2)

Here, value is an expression which will be evaluated for the property binding.

[src] to be precise, this is an angular2 way property binding syntax.

So, it will bind value's evaluated value to src property.