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That's definitely not obvious. Some people think in patterns or generalizations. String [binary_operator] Number = String String [binary_operator] Number = Nu
by hello_moto 15y ago
That's definitely not obvious. Some people think in patterns or generalizations.
String [binary_operator] Number = String
String [binary_operator] Number = Number
That's just begging for further explanation.
Explaining JavaScript is probably more challenging than say Java. Java has many keywords and usages, but when it comes to explaining the concept of those keywords/semantics to students, it may be a little bit less confusing.
- maximusprime 15y agoOK here's plain english simple explain... Left hand side is a string, and "+" is string concatenation as well as addition. So '5' + 3 = '53' (String concatenation). Just as "Hello" + 1 would equal "Hello1". The right hand side is converted to a string. Left hand side is a string, but "-" is subtraction for numbers. JS converts the '5' to a number, then subtracts. So '5' - 3 = 2 (Numerical subtraction). That's the explanation, and it's not terribly hard to get past.
- barrkel 15y agoThe issue isn't explaining it. The issue is it needing an explanation at all.