Haven't really understood it in Java or C#, I don't understand the gains except for not having to type a few characters, and you're loosing that nice readability in statically typed languages.
Also, var should be illegal now in javascript, having let and const.
It's not just typing but readability improves with more concise code but yes, you got to be more careful with variable names now because you just have one identifier to use to convey your intention and what the variable is and what it does.
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Haven't really understood it in Java or C#, I don't understand the gains except for not having to type a few characters, and you're loosing that nice readability in statically typed languages.
Also, var should be illegal now in javascript, having let and const.
It's not just typing but readability improves with more concise code but yes, you got to be more careful with variable names now because you just have one identifier to use to convey your intention and what the variable is and what it does.