string-conversion

Why does Resharper say, “Co-variant array conversion from string[] to object[] can cause run-time exception on write operation” with this code? [duplicate]

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The method comboBoxMonth.Items.AddRange expects an object[] parameter. months.ToArray() is string[]. A cast from string[] to object[] is valid, but if the method tries to modify elements of the array, you will get run-time errors. In this case it doesn’t, so you can ignore the warning. If it annoys you, you can use ToArray<object>() comboBoxMonth.Items.AddRange(UsageRptConstsAndUtils.months.ToArray<object>()); It … Read more

What is the difference between Number(…) and parseFloat(…)

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The internal workings are not that different, as @James Allardic already answered. There is a difference though. Using parseFloat, a (trimmed) string starting with one or more numeric characters followed by alphanumeric characters can convert to a Number, with Number that will not succeed. As in: parseFloat(‘3.23abc’); //=> 3.23 Number(‘3.23abc’); //=> NaN In both conversions, … Read more

Template friendly string to numeric in C++

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Why there are no template functions something like: C++17 has such generic string to number function, but named differently. They went with std::from_chars, which is overloaded for all numeric types. As you can see, the first overload is taking any integer type as an output parameter and will assign the value to it if possible. … Read more

How to convert array to a string using methods other than JSON?

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serialize() is the function you are looking for. It will return a string representation of its input array or object in a PHP-specific internal format. The string may be converted back to its original form with unserialize(). But beware, that not all objects are serializable, or some may be only partially serializable and unable to … Read more