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Convert a series of parent-child relationships into a hierarchical tree?
...sic recursive function to parse the child/parent pairs to a tree structure and another recursive function to print it out. Only one function would suffice but here's two for clarity (a combined function can be found at the end of this answer).
First initialize the array of child/parent pairs:
$tre...
Removing path and extension from filename in powershell
I have a series of strings which are full paths to files. I'd like to save just the filename, without the file extension and the leading path. So from this:
...
How to avoid the “Circular view path” exception with Spring MVC test
...ks the following
if (path.startsWith("/") ? uri.equals(path) : uri.equals(StringUtils.applyRelativePath(uri, path))) {
throw new ServletException("Circular view path [" + path + "]: would dispatch back " +
"to the current handler URL [" + uri + "] again. Check your ViewR...
What does “#define _GNU_SOURCE” imply?
...different Unix versions, so there is no single right content for, say, <string.h> — there are many standards (xkcd).
There's a whole set of macros to pick your favorite one, so that if your program expects one standard, the library will conform to that.
...
Expand/collapse section in UITableView in iOS
...l = true
var itemsInSection: NSMutableArray = []
var sectionTitle: String?
init(itemsInSection: NSMutableArray, sectionTitle: String) {
self.itemsInSection = itemsInSection
self.sectionTitle = sectionTitle
}
}
3.in your tableview
import UIKit
class TableViewContr...
How can I determine if a JavaScript variable is defined in a page? [duplicate]
...
you are checking if x = a string, not if x is undefined.
– FlySwat
Sep 26 '08 at 23:02
1
...
Difference between and
I'm learning Spring 3 and I don't seem to grasp the functionality behind <context:annotation-config> and <context:component-scan> .
...
On a CSS hover event, can I change another div's styling? [duplicate]
...e adjacent sibling combinator (+).
If there are other elements between #a and #b, you can use this: http://jsfiddle.net/u7tYE/1/
#a:hover ~ #b {
background: #ccc
}
<div id="a">Div A</div>
<div>random other elements</div>
<div>random other elements</div>
<...
How to check if a folder exists
...
Generate a file from the string of your folder directory
String path="Folder directory";
File file = new File(path);
and use method exist.
If you want to generate the folder you sould use mkdir()
if (!file.exists()) {
System.out....
How to count occurrences of a column value efficiently in SQL?
...nswered Oct 10 '12 at 16:00
DamianDamian
68688 silver badges1414 bronze badges
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