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Const in JavaScript: when to use it and is it necessary?
...ehaviour is only applicable to Strings, Basic Types. Using Objects, Arrays etc. it is possible to change the values but it is not possible to re-assign an new "Object", e.g. const a = ["a","b"]; a = []; will throw an error otherwise it is possible
– Fer To
Feb ...
Cartesian product of x and y array points into single array of 2D points
... to bugs if you expect the cartesian product to be constructed in the same order for arrays of the same size.
– tlnagy
Jul 27 '15 at 18:35
...
How can I combine two HashMap objects containing the same types?
...od can be more generic, use varargs and loop to putAll Maps from arguments etc. but I wanted to show a concept.
Also, ImmutableMap and its Builder have few limitations (or maybe features?):
they are null hostile (throw NullPointerException - if any key or value in map is null)
Builder don't accep...
Detect changes in the DOM
...to be the same.
Maybe if you're only interested in the elements and their order (as you mentioned in your question), a getElementsByTagName("*") can work. This will fire automatically if you add an element, remove an element, replace elements or change the structure of the document.
I wrote a pro...
Can not connect to local PostgreSQL
... system, they all contain conf.sample files (pg_hba, pg_ident, pg_service, etc) but no .conf files. This should not be the case, correct? Also the directory that should contain .s.PGSQL.5432 is empty. Instead I have a file located at /private/tmp/.s.PGSQL.5432.lock. PS returns postgres processes so ...
Can I publish a private NuGet package?
...a new NuGet version on demand, with each new continuous integration build, etc. One of the most useful bits (as with all NuGet server implementations) is that it will keep dozens of older versions of your assemblies so if you have one project that needs to reference the newest version, and another ...
What's the best strategy for unit-testing database-driven applications?
...x series of queries to your database, that may vary in
syntax
complexity
order (!)
Mocking all that to produce sensible dummy data is quite hard, unless you're actually building a little database inside your mock, which interprets the transmitted SQL statements. Having said so, use a well-known ...
How to pipe input to a Bash while loop and preserve variables after loop ends
...d for me. But now when I run while read i; do echo $i; done < <(cat /etc/passwd); echo $i It did not return last line two times. What I am doing wrong?
– Wakan Tanka
Feb 22 '15 at 19:48
...
Directive isolate scope with ng-repeat scope in AngularJS
...n't be trying to change this.
Priority in directives isn't just execution order - see: AngularJS : How does the HTML compiler arrange the order for compiling?
In Batarang, if you check the performance tab, you can see the expressions bound for each scope, and check if this matches your expectations...
Difference between app.use and app.get in express.js
...l of them and regardless of HTTP verb used:
GET /
PUT /foo
POST /foo/bar
etc.
app.get(), on the other hand, is part of Express' application routing and is intended for matching and handling a specific route when requested with the GET HTTP verb:
GET /
And, the equivalent routing for your exa...