There’s a principle called “eating your own dogfood”. By using a tool, you demonstrate the usefulness of the tool. It is often asked, “if the compiler for language X isn’t written in language X, why should I risk using it?” This of course only applies to languages suitable for the domain of compiler writing.
You may want to check out the answers to these similar question: Image processing language/environment
Edit: The question was a little confusing, so I’m answering it two different ways. OS-level threads vs Green Threads For clarity, I usually say “OS-level threads” or “native threads” instead of “Kernel-level threads” (which I confused with “kernel threads” in my original answer below.) OS-level threads are created and managed by the OS. Most languages … Read more
This should reveal all SELECT 4=4, 3=4, 1 or null, 0 or null Output 1 | 0 | 1 | NULL Facts COUNT adds up the columns / expressions that evaluate to NOT NULL. Anything will increment by 1, as long as it is not null. Exception is COUNT(DISTINCT) where it increments only if it … Read more
Short version: Types in C++ are: Object types: scalars, arrays, classes, unions Reference types Function types (Member types) [see below] void Long version Object types Scalars arithmetic (integral, float) pointers: T * for any type T enum pointer-to-member nullptr_t Arrays: T[] or T[N] for any complete, non-reference type T Classes: class Foo or struct Bar … Read more
Yes, in theory. Not normally, in the real world. In the common case, async is used for I/O-bound operations, and the overhead of thread management is undetectable in comparison to them. Most of the time, asynchronous operations either take a very long time (compared to thread management) or are already completed (e.g., a cache). Note … Read more
Set.retainAll() is how you find the intersection of two sets. If you use HashSet, then converting your ArrayLists to Sets and using retainAll() in a loop over all of them is actually O(n).
Unfortunately, no As i’m sure you’re aware, but I’ll state explicitly for completeness – there are only the 2 keywords to control the method invocation: this – this.method() – looks for method starting from the invoking instance’s class (the instance’s “top” virtual table – implied default) super – super.method() – looks for method starting from … Read more
Schemas logically group tables, procedures, views together. All employee-related objects in the employee schema, etc. You can also give permissions to just one schema, so that users can only see the schema they have access to and nothing else.
var iframe = document.createElement(“iframe”); document.documentElement.appendChild(iframe); var _window = iframe.contentWindow; String.prototype.split = _window.String.prototype.split; document.documentElement.removeChild(iframe); Use iframes to recover methods from host objects. Note there are traps with this method. “foo”.split(“”) instanceof Array // false “foo”.split(“”) instanceof _window.Array // true The best way to fix this is to not use instanceof, ever. Also note that var _split … Read more