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How does the const constructor actually work?
...ting-widgets-b7ac56dbbeb1 "Use const to build your widgets Without const, selective rebuilding of the sub-tree does not happen. Flutter creates a new instance of each widget in the sub-tree and calls build() wasting precious cycles especially if your build methods are heavy."
–...
What is the difference between “#!/usr/bin/env bash” and “#!/usr/bin/bash”?
...t more portable, but also increases the risk that the wrong interpreter is selected because it searches for a match in every directory on the executable search path. It also suffers from the same problem in that the path to the env binary may also be different on a per-machine basis."-Wikipedia
...
Actionbar notification count icon (badge) like Google has
... @Override
public void onClick(View v) {
onHotlistSelected();
}
};
return super.onCreateOptionsMenu(menu);
}
// call the updating code on the main thread,
// so we can call this asynchronously
public void updateHotCount(final int new_hot_number) {
hot_nu...
What does Ruby have that Python doesn't, and vice versa?
...thods of your choosing. If this would have a name maybe it would be called selective importing?
share
edited Jul 11 '09 at 22:00
...
Detach many subdirectories into a new, separate Git repository
...sadjad, No idea, to be honest. The central point of the manual merge is to select the directories to form the new repo and keep their commit histories. I am not sure how to handle such situation where a commit put files into dirA, dirB, dirDrop and only dirA and dirB are chosen for the new repo, how...
Biggest advantage to using ASP.Net MVC vs web forms
...technology - it might make development for a particular application easier selecting one technology versus the other and vice versa.
ASP.NET Web Forms:
Development supports state
• Gives the illusion that a web application is aware of what the user has been doing, similar to Windows applicati...
Learning assembly [closed]
...y contents (in assembly language, hexadecimal or ASCII), make changes, and selectively execute COM, EXE and other file types.
It also has several subcommands which are used to access specific disk
sectors, I/O ports and memory addresses. MS-DOS Debug runs at a
16-bit process level and therefor...
Is a `=default` move constructor equivalent to a member-wise move constructor?
... remains in the overload set, and the program is ill-formed if it would be selected. When it is implicitly deleted, it is removed from the overload set. See Deleted implicitly-declared move constructor
– Caleth
Oct 3 '18 at 11:18
...
MongoDB Many-to-Many Association
...ey use their own N1QL. This is an example of a JOIN from their tutorials:
SELECT usr.personal_details, orders
FROM users_with_orders usr
USE KEYS "Elinor_33313792"
JOIN orders_with_users orders
ON KEYS ARRAY s.order_id FOR s IN usr.shipped...
How can I keep my fork in sync without adding a separate remote?
... upstream repository.
Visit the URL, click the green "Install" button and select the repositories where you want to enable automatic synchronization.
The branch is updated once per hour directly on GitHub, on your local machine you need to pull the master branch to ensure that your local copy is i...