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Error-Handling in Swift-Language
...ogramming easier, e.g. 'Swift Way:
struct FailableInitializer {
init?(_ id: Int, error: NSErrorPointer) {
// Always fails in example
if error != nil {
error.memory = NSError(domain: "", code: id, userInfo: [:])
}
return nil
}
private init() {
...
CMake: How to build external projects and include their targets
...txt - just like any other third-party dependency added this way or via find_file / find_library / find_package.
If you want to make use of ExternalProject_Add, you'll need to add something like the following to your CMakeLists.txt:
ExternalProject_Add(project_a
URL ...project_a.tar.gz
PREFIX $...
In Firebase, is there a way to get the number of children of a node without loading all the node dat
...ts/-JRHTHaIs-jNPLXOQivY/upvotes');
upvotesRef.transaction(function (current_value) {
return (current_value || 0) + 1;
});
For more info, see https://www.firebase.com/docs/transactions.html
UPDATE:
Firebase recently released Cloud Functions. With Cloud Functions, you don't need to create your ow...
Using PowerShell credentials without being prompted for a password
...SecureString
$password.ToCharArray() | ForEach-Object {$secstr.AppendChar($_)}
$cred = new-object -typename System.Management.Automation.PSCredential -argumentlist $username, $secstr
$cred will have the credentials from John Doe with the password "ABCDEF".
Alternative means to get the password r...
Undo git reset --hard with uncommitted files in the staging area
...it. But I knew the commit hash, so I was able to do git cherry-pick COMMIT_HASH to restore it.
I did this within a few minutes of losing the commit, so it may work for some of you.
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Python Selenium accessing HTML source
...
You need to access the page_source property:
from selenium import webdriver
browser = webdriver.Firefox()
browser.get("http://example.com")
html_source = browser.page_source
if "whatever" in html_source:
# do something
else:
# do something e...
How to replace a string in a SQL Server Table Column
...
It's this easy:
update my_table
set path = replace(path, 'oldstring', 'newstring')
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How to sort a collection by date in MongoDB?
...
db.getCollection('').find({}).sort({_id:-1})
This will sort your collection in descending order based on the date of insertion
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Same-named attributes in attrs.xml for custom view
... When I follow this answer I get ERROR: In <declare-styleable> com_app_view_widget, unable to find attribute customAttr For all the view I try to declare for. Any ideas?
– Dapp
Jun 9 '14 at 14:54
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How do I load an org.w3c.dom.Document from XML in a string?
...wesome! Saved our lives on JDK8 with following setup file.encoding=ISO-8859_1 , javax.servlet.request.encoding=UTF-8 PS the answer labeled as correct didnt work for us
– kosta5
Apr 12 '17 at 12:08
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