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How to write a bash script that takes optional input arguments?
...t's the function/purpose of the ':' and '-'?
– jwien001
Sep 5 '14 at 21:11
8
@jwein001: In the an...
How to rename with prefix/suffix?
...available and you have to rename more than one file, shell scripting can really be short and simple for this. For example, to rename all *.jpg to prefix_*.jpg in the current directory:
for filename in *.jpg; do mv "$filename" "prefix_$filename"; done;
...
Calculate date from week number
...ives me the 6th of Feb as the start date of the week. The other solutions all gave me the 13th of Feb, which is actually the start date of week #7.
– HaukurHaf
Feb 7 '12 at 9:25
1...
What regular expression will match valid international phone numbers?
...e whether a phone number is valid before attempting to dial it. The phone call can go anywhere in the world.
23 Answers
...
Replace multiple strings with multiple other strings
...j[matched];
});
jsfiddle example
Generalizing it
If you want to dynamically maintain the regex and just add future exchanges to the map, you can do this
new RegExp(Object.keys(mapObj).join("|"),"gi");
to generate the regex. So then it would look like this
var mapObj = {cat:"dog",dog:"goat"...
LINQ's Distinct() on a particular property
...m and pick a winner out of the group.
List<Person> distinctPeople = allPeople
.GroupBy(p => p.PersonId)
.Select(g => g.First())
.ToList();
If you want to define groups on multiple properties, here's how:
List<Person> distinctPeople = allPeople
.GroupBy(p => new {p.Pe...
Firebug says “No Javascript on this page”, even though JavaScript does exist on the page
... 'debugger' option. See this page for a discussion on the migration. Read all the posts dated 19 November for further information.
It seems to me that the option gives less functionality but Firebug per se is never going to be fixed for Firefox 50 and beyond
...
Determine whether an array contains a value [duplicate]
... }
return index;
};
}
return indexOf.call(this, needle) > -1;
};
You can use it like this:
var myArray = [0,1,2],
needle = 1,
index = contains.call(myArray, needle); // true
CodePen validation/usage
...
SQLAlchemy: cascade delete
...use that is where you defined your relationship (it doesn't care that you called it "Child" of course).
If you define the relationship on the Parent class instead, it will work:
children = relationship("Child", cascade="all,delete", backref="parent")
(note "Child" as a string: this is allowed wh...
What exactly can cause an “HIERARCHY_REQUEST_ERR: DOM Exception 3”-Error?
... Greg B
13.5k1717 gold badges7474 silver badges130130 bronze badges
answered Aug 11 '09 at 3:58
Kelly NortonKelly Norton
2,8511...