Why try when it's easier to fail?
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foo.TryGetValue("bar", out object value);
var somestr = value.ToString();Sort of defeats the purpose of the try when foo doesn't have the key "bar" or even if it does, the value might be null. :sigh: If I show this to the person who wrote it, do you think they'll suggest a try-catch block to not break the rest of the code? :rolleyes:
Latest Article - A 4-Stack rPI Cluster with WiFi-Ethernet Bridging Learning to code with python is like learning to swim with those little arm floaties. It gives you undeserved confidence and will eventually drown you. - DangerBunny Artificial intelligence is the only remedy for natural stupidity. - CDP1802
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foo.TryGetValue("bar", out object value);
var somestr = value.ToString();Sort of defeats the purpose of the try when foo doesn't have the key "bar" or even if it does, the value might be null. :sigh: If I show this to the person who wrote it, do you think they'll suggest a try-catch block to not break the rest of the code? :rolleyes:
Latest Article - A 4-Stack rPI Cluster with WiFi-Ethernet Bridging Learning to code with python is like learning to swim with those little arm floaties. It gives you undeserved confidence and will eventually drown you. - DangerBunny Artificial intelligence is the only remedy for natural stupidity. - CDP1802
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foo.TryGetValue("bar", out object value);
var somestr = value.ToString();Sort of defeats the purpose of the try when foo doesn't have the key "bar" or even if it does, the value might be null. :sigh: If I show this to the person who wrote it, do you think they'll suggest a try-catch block to not break the rest of the code? :rolleyes:
Latest Article - A 4-Stack rPI Cluster with WiFi-Ethernet Bridging Learning to code with python is like learning to swim with those little arm floaties. It gives you undeserved confidence and will eventually drown you. - DangerBunny Artificial intelligence is the only remedy for natural stupidity. - CDP1802
At least he tried ;p
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foo.TryGetValue("bar", out object value);
var somestr = value.ToString();Sort of defeats the purpose of the try when foo doesn't have the key "bar" or even if it does, the value might be null. :sigh: If I show this to the person who wrote it, do you think they'll suggest a try-catch block to not break the rest of the code? :rolleyes:
Latest Article - A 4-Stack rPI Cluster with WiFi-Ethernet Bridging Learning to code with python is like learning to swim with those little arm floaties. It gives you undeserved confidence and will eventually drown you. - DangerBunny Artificial intelligence is the only remedy for natural stupidity. - CDP1802
A classic case of "when a little knowledge is a dangerous thing". They understood that they needed to use TryGetValue() but not how to use it.
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foo.TryGetValue("bar", out object value);
var somestr = value.ToString();Sort of defeats the purpose of the try when foo doesn't have the key "bar" or even if it does, the value might be null. :sigh: If I show this to the person who wrote it, do you think they'll suggest a try-catch block to not break the rest of the code? :rolleyes:
Latest Article - A 4-Stack rPI Cluster with WiFi-Ethernet Bridging Learning to code with python is like learning to swim with those little arm floaties. It gives you undeserved confidence and will eventually drown you. - DangerBunny Artificial intelligence is the only remedy for natural stupidity. - CDP1802
Prolog has the notion of "fail" and handles this gracefully (Visual Prolog in the example below):
facts % key_value lookup table
key_value : (string Key, integer Value).predicates
tryGetValue : (string Key) -> integer Value determ.
clauses
tryGetValue(K) = V :-
key_value(K, V), % FAILs here if undefined key_value/2
!. -
foo.TryGetValue("bar", out object value);
var somestr = value.ToString();Sort of defeats the purpose of the try when foo doesn't have the key "bar" or even if it does, the value might be null. :sigh: If I show this to the person who wrote it, do you think they'll suggest a try-catch block to not break the rest of the code? :rolleyes:
Latest Article - A 4-Stack rPI Cluster with WiFi-Ethernet Bridging Learning to code with python is like learning to swim with those little arm floaties. It gives you undeserved confidence and will eventually drown you. - DangerBunny Artificial intelligence is the only remedy for natural stupidity. - CDP1802
-
foo.TryGetValue("bar", out object value);
var somestr = value.ToString();Sort of defeats the purpose of the try when foo doesn't have the key "bar" or even if it does, the value might be null. :sigh: If I show this to the person who wrote it, do you think they'll suggest a try-catch block to not break the rest of the code? :rolleyes:
Latest Article - A 4-Stack rPI Cluster with WiFi-Ethernet Bridging Learning to code with python is like learning to swim with those little arm floaties. It gives you undeserved confidence and will eventually drown you. - DangerBunny Artificial intelligence is the only remedy for natural stupidity. - CDP1802
They were probably so thrilled with using inline type declaration they thought their job that day was done
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foo.TryGetValue("bar", out object value);
var somestr = value.ToString();Sort of defeats the purpose of the try when foo doesn't have the key "bar" or even if it does, the value might be null. :sigh: If I show this to the person who wrote it, do you think they'll suggest a try-catch block to not break the rest of the code? :rolleyes:
Latest Article - A 4-Stack rPI Cluster with WiFi-Ethernet Bridging Learning to code with python is like learning to swim with those little arm floaties. It gives you undeserved confidence and will eventually drown you. - DangerBunny Artificial intelligence is the only remedy for natural stupidity. - CDP1802
var somestr = foo.TryGetValue("bar", out var value) ? value?.ToString() : null;
Would that be better?! :o
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