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subtle differences between JavaScript and Lua [closed]
...als in JS can be in octal.
JS has explicit Unicode support, and internally strings are encoded in UTF-16 (so they are sequences of pairs of bytes). Various built-in JavaScript functions use Unicode data, such as "pâté".toUpperCase() ("PÂTÉ"). Lua 5.3 and up have Unicode code point escape sequenc...
How to get the client IP address in PHP [duplicate]
...elds in your database.
If you are going to save the IP to a database as a string, make sure you have space for at least 45 characters. IPv6 is here to stay and those addresses are larger than the older IPv4 addresses.
(Note that IPv6 usually uses 39 characters at most but there is also a special I...
How can I get Maven to stop attempting to check for updates for artifacts from a certain group from
...pshots should be disabled anyways so I looked further and noticed that the extra repository that I added to my settings.xml was causing the problem actually. Adding the snapshots section to this repository in my settings.xml did the trick!
<repository>
<id>jboss</id>
<n...
Django in / not in query
...
table1.objects.extra(where=["table1.id NOT IN (SELECT table2.key_to_table1 FROM table2 WHERE table2.id = some_parm)"])
share
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improve th...
LogCat message: The Google Play services resources were not found. Check your project configuration
...google.android.gms.common.GooglePlayServicesUtil.class. The aforementioned string appears only in one place:
public static int isGooglePlayServicesAvailable(Context context) {
PackageManager localPackageManager = context.getPackageManager();
try {
Resources localResources = context....
What do (lambda) function closures capture?
...lent way is the one recommended by Adrien Plisson. Create a lambda with an extra argument, and set the extra argument's default value to the object you want preserved.
A little more verbose but less hacky would be to create a new scope each time you create the lambda:
>>> adders = [0,1,2,3...
Recursive search and replace in text files on Mac and Linux
...takes the argument after -i as the extension for backups. Provide an empty string (-i '') for no backups.
The following should do:
LC_ALL=C find . -type f -name '*.txt' -exec sed -i '' s/this/that/ {} +
The -type f is just good practice; sed will complain if you give it a directory or so.
-exec i...
Reading value from console, interactively
...data", function(d) {
// note: d is an object, and when converted to a string it will
// end with a linefeed. so we (rather crudely) account for that
// with toString() and then trim()
console.log("you entered: [" +
d.toString().trim() + "]");
});
...
What are the pros and cons to keeping SQL in Stored Procs versus Code [closed]
... as a language in many IDE's so you have just a series of un-error checked strings performing tasks for you
changes in a data type, table name or constraint are far more prevalent than swapping out an entire databases for a new one
your level of difficulty increases as your query grows in complexity...
What is the reason behind “non-static method cannot be referenced from a static context”? [duplicate
...e the data. Together, they form an object.
public class Foo
{
private String foo;
public Foo(String foo){ this.foo = foo; }
public getFoo(){ return this.foo; }
public static void main(String[] args){
System.out.println( getFoo() );
}
}
What could possibly be the resul...