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Is Python strongly typed?
...nversions required), but the type system can be subverted by using pointer casts.
The strength of the type system in a dynamic language such as Python is really determined by how its primitives and library functions respond to different types. E.g., + is overloaded so that it works on two numbers o...
How to convert string to boolean php
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To explicitly convert a value to boolean, use the (bool) or (boolean)
casts. However, in most cases the cast is unnecessary, since a value
will be automatically converted if an operator, function or control
structure requires a boolean argument.
See also Type Juggling.
When conver...
Why array implements IList?
... (and transitively, ICollection) simplified the Linq2Objects engine, since casting the IEnumerable to IList/ICollection would also work for arrays.
For example, a Count() ends up calling the Array.Length under-the-hood, since it's casted to ICollection and the array's implementation returns Length...
What does “while True” mean in Python?
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@Blindy: in a weakly-typed language with automatic casting, you can say x 'evaluates to' y... it's not while 5 is not strictly equal to 0, it's while 5 is loosely equal to True.
– Dagg Nabbit
Sep 20 '10 at 21:13
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How to declare a variable in a PostgreSQL query
...ars.id')::int;
Config settings are always varchar values, so you need to cast them to the correct data type when using them. This works with any SQL client whereas \set only works in psql
The above requires Postgres 9.2 or later.
For previous versions, the variable had to be declared in postgre...
Swift - which types to use? NSString or String
...wift type, as in str.bridgeToObjectiveC().length for example. You can also cast a String to an NSString by using str as NSString.
However, the necessity for these techniques to explicitly use the Foundation types, or at least some of them, may be obsolete in the future, since from what is stated in...
Easy way to turn JavaScript array into comma-separated list?
... To get CSV of an array we can just use console.log(arr) or like you said, casting it as string automatically makes it CSV.
– sanpat
Aug 17 at 19:44
add a comment
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What column type/length should I use for storing a Bcrypt hashed password in a Database?
...password (using BCrypt) in a database. What would be a good type for this, and which would be the correct length? Are passwords hashed with BCrypt always of same length?
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Java rounding up to an int using Math.ceil
...re only correct for integer division not for long division when values are casted to doubles. Counter examples are 4611686018427386880 / 4611686018427387137 fails on floor and 4611686018427386881 / 4611686018427386880 fails on ceil
– Wouter
Jul 11 '16 at 12:20
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Why are const parameters not allowed in C#?
...hors assume is invariant about the object?
Nothing. The callee is free to cast away the const and mutate the object, so the caller has no guarantee that calling a method that takes a const actually will not mutate it. Similarly, the callee cannot assume that the contents of the object will not chan...