What is the difference between "rand(150) .<= 0.1" and "rand(150) .= rand(150) .<= 0.1"?

General Usage
1

It was my fault and I asked the wrong question. I apologize and delete the question.

2

The second expression does something like the following, but without introducing a binding that makes things clear, no?

x = rand(150) 
x .= rand(150) .<= 0.1
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4

Yes it is definitely clearer but I don’t know if code rand(150) .= rand(150) .<= 0.1 is exactly equal to
x = rand(150) x .= rand(150) .<= 0.1 .

Are they exactly equal?

and what’s the main answer?

tnx