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How to split a string in shell and get the last field
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One way:
var1="1:2:3:4:5"
var2=${var1##*:}
Another, using an array:
var1="1:2:3:4:5"
saveIFS=$IFS
IFS=":"
var2=($var1)
IFS=$saveIFS
var2=${var2[@]: -1}
Yet another with an array:
var1="1:2:3:4:5"
saveIFS=$IFS
IFS=":"
var2=($var1)
IFS=$saveIFS
count=${#var2[@]}
var2=${var2[$count-1]...
$watch an object
... it will check for reference equality if the watched value is an object or array. In that case, you should specify the properties explicitly, like $scope.$watch('form.name') and $scope.$watch('form.surname')
– rossipedia
Oct 18 '13 at 17:29
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Can you attach a UIGestureRecognizer to multiple views?
... ; frame = (0 44; 600 536); autoresize = RM+BM; gestureRecognizers = <NSArray...: >; layer = <CALayer: ...>>) at a time, this was never allowed, and is now enforced. Beginning with iOS 9.0 it will be put in the first view it is loaded into.
– George Brown
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Test for multiple cases in a switch, like an OR (||)
...pageid === "listing-page" || pageid === "home-page")
lets create several arrays with cases and check it with Array.prototype.includes()
var caseA = ["listing-page", "home-page"];
var caseB = ["details-page", "case04", "case05"];
if(caseA.includes(pageid)) {
alert("hello");
}
else if (caseB.i...
Weighted random numbers
..."in order" you are purposely omitting a pre-sort step on the choice_weight array, yes?
– SilentDirge
Oct 31 '11 at 19:17
2
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Wait until all jQuery Ajax requests are done?
...s), it can still be done but is just a little bit trickier. See Pass in an array of Deferreds to $.when() (and maybe jQuery .when troubleshooting with variable number of arguments).
If you need deeper control over the failure modes of the ajax scripts etc., you can save the object returned by .when...
val-mutable versus var-immutable in Scala
...ters, while reassignment is not allowed.
import scala.collection.mutable.ArrayBuffer
object MyObject {
def main(args: Array[String]) {
val a = ArrayBuffer(1,2,3,4)
silly(a)
println(a) // a has been modified here
}
def silly(a: ArrayBuffer[Int]): Unit = {
...
CKEditor instance already exists
... Don't use CKEDITOR.remove because it only clears the element from the array, but leaves all the DOM in memory. It's stated in the docs that it's meant for internal use: docs.cksource.com/ckeditor_api/symbols/CKEDITOR.html#.remove You should use instead instace.destroy() as madhaviaddanki said.
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Histogram Matplotlib
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@CMCDragonkai: plt.bar's width parameter can accept an array-like object (instead of a scalar). So you could use width = np.diff(bins) instead of width = 0.7 * (bins[1] - bins[0]).
– unutbu
Sep 9 '16 at 14:54
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Return positions of a regex match() in Javascript?
...developer.mozilla.org docs on the String .match() method:
The returned Array has an extra input property, which contains the
original string that was parsed. In addition, it has an index
property, which represents the zero-based index of the match in the
string.
When dealing with a non-g...