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Passport.js - Error: failed to serialize user into session
...how you implement serialization. Sometimes you serialize by user id, which means that the serializeUser function stores just the user id in the session, and deserializeUser uses that id to retrieve the user data from a database (for instance). This is to prevent the session storage from containing t...
Should I avoid the use of set(Preferred|Maximum|Minimum)Size methods in Java Swing?
...uristics:
Don't use set[Preferred|Maximum|Minimum]Size() when you really mean to override get[Preferred|Maximum|Minimum]Size(), as might be done in creating your own component, shown here.
Don't use set[Preferred|Maximum|Minimum]Size() when you could rely on a component's carefully overridden getP...
Get names of all keys in the collection
...
what does test mean here? can u please explain?
– TB.M
Mar 27 '17 at 6:03
...
What do ellipsis […] mean in a list?
...
It means that you created an infinite list nested inside itself, which can not be printed. p contains p which contains p ... and so on. The [...] notation is a way to let you know this, and to inform that it can't be represente...
What does (function($) {})(jQuery); mean?
...mply copying the line into all my plugins without actually knowing what it means. Can someone tell me a little more about these? Perhaps an explanation will come in handy someday when writing a framework :)
...
What is the meaning of the planned “private protected” C# access modifier?
...ferent accessibility levels (images do not fit in comments).
Each arrow means "is more restrictive than".
The CLR names are Private, FamilyANDAssembly, Assembly, Family, FamilyORAssembly, Public.
Much later edit: It turned out this nice new access level (with a really poor name) was not event...
GCM with PHP (Google Cloud Messaging)
... values are the same as documented in the above table, plus "Unavailable" (meaning GCM servers were busy and could not process the message for that particular recipient, so it could be retried).
I've got a service set up already that seems to be working (ish), and so far all I've had back are unava...
Best way to store a key=>value array in JavaScript?
... an object with {} is equivalent to Object.create(Object.prototype), which means that it inherits all properties of Object. Normally that is not a problem, but it could cause your object to have unexpected keys if some library has modified the global Object.prototype.
– Rory O'...
Why can't C compilers rearrange struct members to eliminate alignment padding? [duplicate]
...nline S into T, 's' has to be compact in memory
char b;
};
This also means that moving some fields from S to a separate struct disables some optimizations:
// Cannot fully optimize S
struct BC { int b; char c; };
struct S {
char a;
struct BC bc;
char d, e;
};
Because most C compi...
TypeScript: casting HTMLElement
...res that return the correct types for calls to getElementsByTagName.
This means you no longer need to use type assertions to change the type:
// No type assertions needed
var script: HTMLScriptElement = document.getElementsByTagName('script')[0];
alert(script.type);
...