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How to run iPhone emulator WITHOUT starting Xcode?
...s/iPhoneSimulator.platform/Developer/Applications/iPhone\ Simulator.app'" >> .bash_profile;. .bash_profile
– JackMahoney
Aug 1 '12 at 0:30
...
MySQL show current connection info
...
You can use the status command in MySQL client.
mysql> status;
--------------
mysql Ver 14.14 Distrib 5.5.8, for Win32 (x86)
Connection id: 1
Current database: test
Current user: ODBC@localhost
SSL: Not in use
Using delimiter: ...
How to check BLAS/LAPACK linkage in NumPy and SciPy?
...is. I think it means I am using the BLAS/LAPACK that ships with Mac OS.
>>> import numpy as np
>>> np.show_config()
lapack_opt_info:
extra_link_args = ['-Wl,-framework', '-Wl,Accelerate']
extra_compile_args = ['-msse3']
define_macros = [('NO_ATLAS_INFO', 3)]
blas_opt...
Where is body in a nodejs http.get response?
...o return the concatenated chunks through a Promise:
const httpGet = url => {
return new Promise((resolve, reject) => {
http.get(url, res => {
res.setEncoding('utf8');
let body = '';
res.on('data', chunk => body += chunk);
res.on('end', () => resolve(bod...
How can I shuffle an array? [duplicate]
...ng the items.
*/
function shuffle(a) {
var j, x, i;
for (i = a.length - 1; i > 0; i--) {
j = Math.floor(Math.random() * (i + 1));
x = a[i];
a[i] = a[j];
a[j] = x;
}
return a;
}
ES2015 (ES6) version
/**
* Shuffles array in place. ES6 version
* ...
Pandas get topmost n records within each group
...
Did you try df.groupby('id').head(2)
Ouput generated:
>>> df.groupby('id').head(2)
id value
id
1 0 1 1
1 1 2
2 3 2 1
4 2 2
3 7 3 1
4 8 4 1
(Keep in mind that you might need to order/sort before, ...
Calculating width from percent to pixel then minus by pixel in LESS CSS
...totally static until it's evaluated by the client:
LESS Input
div {
> span {
width: calc(~'100% - 10px');
}
}
CSS Output
div > span {
width: calc(100% - 10px);
}
Interpolation of Variables
You can insert a LESS variable into the string:
LESS Input
div {
> spa...
How do I cast a string to integer and have 0 in case of error in the cast with PostgreSQL?
...(COALESCE(myfield,'0')) AS INTEGER)
Some test cases to demonstrate:
db=> select CAST((COALESCE(NULL,'0')) AS INTEGER);
int4
------
0
(1 row)
db=> select CAST((COALESCE('','0')) AS INTEGER);
int4
------
0
(1 row)
db=> select CAST((COALESCE('4','0')) AS INTEGER);
int4
------
...
“Use of undeclared type” in Swift, even though type is internal, and exists in same module
... This solved the issue for me as well. I had clicked on a file and file->duplicated a copy of it. The new copy was listed but not included in the "compile sources"
– Ron Myschuk
Mar 24 '16 at 16:34
...
jQuery send string as POST parameters
.../',
data: {
'foo': 'bar',
'ca$libri': 'no$libri' // <-- the $ sign in the parameter name seems unusual, I would avoid it
},
success: function(msg){
alert('wow' + msg);
}
});
shar...