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Iterating over every two elements in a list
...on, which yields s -> (s0, s1), (s1, s2), (s2, s3), ..., as pointed out by @lazyr in the comments.
Little addition for those who would like to do type checking with mypy on Python 3:
from typing import Iterable, Tuple, TypeVar
T = TypeVar("T")
def grouped(iterable: Iterable[T], n=2) -> Ite...
What is the documents directory (NSDocumentDirectory)?
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I have discovered that [@"~/Documents" stringByExpandingTildeInPath] does the same thing. Is there any reason that this should be discouraged?
– Cthutu
May 23 '12 at 19:36
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Check if a value is an object in JavaScript
... Object.create(null)
How to check whether a value is an object
instanceof by itself won't work, because it misses two cases:
// oops: isObject(Object.prototype) -> false
// oops: isObject(Object.create(null)) -> false
function isObject(val) {
return val instanceof Object;
}
typeof x =...
Validation failed for one or more entities while saving changes to SQL Server Database using Entity
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The answer could be improved by explaining where you can actually see the trace output.
– mkataja
Apr 3 '14 at 9:03
1
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Set cellpadding and cellspacing in CSS?
... for those attempting responsive emails, note that * is not recognized by outlook 2007+ (uses word as a render engine) campaignmonitor.com/css
– ptim
Sep 14 '13 at 5:42
querySelector search immediate children
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Date.now() is not supported by older browsers, and could be replaced with new Date().getTime()
– Christophe
Sep 14 '13 at 16:42
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How to redirect output of an already running process [duplicate]
... used that link from your post, you would've been in the top 100 at least. By the way don't you feel the urge to get out of the userXXX league?
– khael
Apr 4 '12 at 1:48
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How to instantiate a File object in JavaScript?
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Now it's possible and supported by all major browsers: https://developer.mozilla.org/en-US/docs/Web/API/File/File
var file = new File(["foo"], "foo.txt", {
type: "text/plain",
});
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android.widget.Switch - on/off event listener?
...d set its OnCheckedChangeListener:
Switch onOffSwitch = (Switch) findViewById(R.id.on_off_switch);
onOffSwitch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
Log.v("Switch State=...
Create an empty list in python with certain size
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What do you mean by "You cannot assign to a list like lst[i] = something" - of course you can! What you can't do is to assign to a non-existent element beyond the current list length
– Sergey
Apr 23 '18 ...