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Vim: Delete buffer without losing the split window
...d delete buffer ▶ simple 2 keywords
# or Number of buffer
vert ▶ short_form of vertical (split_buffer or else)
That are easy and very useful in many other many case!
Have a nice Day! :)
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Sort Dictionary by keys
...t to iterate over both the keys and the values in a key sorted order, this form is quite succinct
let d = [
"A" : [1, 2],
"Z" : [3, 4],
"D" : [5, 6]
]
Swift 1,2:
for (k,v) in Array(d).sorted({$0.0 < $1.0}) {
println("\(k):\(v)")
}
Swift 3+:
for (k,v) in Array(d).sorted(by: {$0.0...
Bash script prints “Command Not Found” on empty lines
...s2unix script.sh
That wil convert line endings, etc from Windows to unix format. i.e. it strips \r (CR) from line endings to change them from \r\n (CR+LF) to \n (LF).
More details about the dos2unix command (man page)
Another way to tell if your file is in dos/Win format:
cat scriptname.sh |...
jQuery : eq() vs get()
...rom a jQuery object array, but they return the single element in different forms.
.eq() returns it as a jQuery object, meaning the DOM element is wrapped in the jQuery wrapper, which means that it accepts jQuery functions.
.get() returns an array of raw DOM elements. You may manipulate each of the...
Finding sum of elements in Swift array
... values (0.23 seconds each). IMHO, code clarity is worth any very minor performance cost here even when dealing with 32MB arrays.
– Tom Dibble
May 21 '18 at 17:42
...
Get selected value/text from Select on change
...le way which works in many environments like React, Vue or just plain HTML forms.
– VanDavv
Mar 21 '18 at 9:44
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What are .dex files in Android?
...ndroid system) is that it does not use Java bytecode. Instead, a homegrown format called DEX was introduced and not even the bytecode instructions are the same as Java bytecode instructions.
Compiled Android application code file.
Android programs are compiled into .dex (Dalvik Executable) files...
Why do I get AttributeError: 'NoneType' object has no attribute 'something'?
...it function, you get the same error.
class ImputeLags(BaseEstimator, TransformerMixin):
def __init__(self, columns):
self.columns = columns
def fit(self, x, y=None):
""" do something """
def transfrom(self, x):
return x
AttributeError: 'NoneType' object ha...
List comprehension vs map
...in xs]'
100000 loops, best of 3: 5.58 usec per loop
An example of how performance comparison gets completely reversed when map needs a lambda:
$ python -mtimeit -s'xs=range(10)' 'map(lambda x: x+2, xs)'
100000 loops, best of 3: 4.24 usec per loop
$ python -mtimeit -s'xs=range(10)' '[x+2 for x in ...
How to add line breaks to an HTML textarea?
...eaks (\n\r?) are not the same as HTML <br/> tags
var text = document.forms[0].txt.value;
text = text.replace(/\r?\n/g, '<br />');
UPDATE
Since many of the comments and my own experience have show me that this <br>
solution is not working as expected here is an example of how to ap...