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What does mysql error 1025 (HY000): Error on rename of './foo' (errorno: 150) mean?
... show you the name of the index, something like this:
CONSTRAINT region_ibfk_1 FOREIGN
KEY (country_id) REFERENCES
country (id) ON DELETE NO
ACTION ON UPDATE NO ACTION
Now simply issue an:
alter table region drop foreign key
region_ibfk_1;
And finally an:
alter table region d...
What is the difference between Numpy's array() and asarray() functions?
...rator); always copied.
There are also convenience functions, like asarray_chkfinite (same copying rules as asarray, but raises ValueError if there are any nan or inf values), and constructors for subclasses like matrix or for special cases like record arrays, and of course the actual ndarray const...
Is git good with binary files?
...{FfMCvb5IaiQM`NJfeQjFwttKJyJNq@
hveI=@x=fAo=hV3$-MIWu9%vGSr>mdKI;RB2CICA_GnfDX
You can use textconv gitattribute to have git diff show human-readable diff for binary files, or parts of binary files. For example for *.jpg files it can be difference in EXIF information, for PDF files it can be di...
How to get notified about changes of the history via history.pushState?
...late the whole code into an IIFE: en.wikipedia.org/wiki/Immediately-invoked_function_expression
– gblazex
Nov 16 '13 at 14:55
|
show 15 more...
How to make a promise from setTimeout
...imer = 0;
let reject = null;
const promise = new Promise((resolve, _reject) => {
reject = _reject;
timer = setTimeout(resolve, delay, value);
});
return {
get promise() { return promise; },
cancel() {
if (timer) {
clearTi...
Upload artifacts to Nexus, without Maven
...ven command-line to upload files?
mvn deploy:deploy-file \
-Durl=$REPO_URL \
-DrepositoryId=$REPO_ID \
-DgroupId=org.myorg \
-DartifactId=myproj \
-Dversion=1.2.3 \
-Dpackaging=zip \
-Dfile=myproj.zip
This will automatically generate the Maven POM for the artifact.
...
Is a Python list guaranteed to have its elements stay in the order they are inserted in?
...l list from a function and use that in the calling function. That is def fn_1(): lst = [] lst.append(1) lst.append(2) return lst and def fn_2(): print(fn_1()) Will the order be same ALWAYS irrespective of how many times or where ever I use fn_1() ?
– TheCuriousOne
...
Pass correct “this” context to setTimeout callback?
...erscore.js, lodash
It's available in Underscore.js, as well as lodash, as _.bind(...)1,2
bind Bind a function to an object, meaning that whenever the function is called, the value of this will be the object. Optionally, bind arguments to the function to pre-fill them, also known as partial appl...
Why does changing the returned variable in a finally block not change the return value?
...iable
5: getstatic #8; //loading "dev" from a static variable
8: astore_0 //storing "dev" to a temp variable
9: ldc #9; //loading String "override variable s"
11: putstatic #8; //setting a static variable
14: aload_0 //loading a temp avariable
15: areturn //retu...
How to make MySQL handle UTF-8 properly
... answer - You should almost always be using the utf8mb4 charset and utf8mb4_unicode_ci collation.
To alter database:
ALTER DATABASE dbname CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
See:
Aaron's comment on this answer How to make MySQL handle UTF-8 properly
What's the difference betwee...