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How do I change the android actionbar title and icon
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To make a single icon be usable by all your action bars you can do this in your Android Manifest.
<application
android:logo="@drawable/Image">
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</application>
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Static variables in JavaScript
...ction () {
alert(this.publicVariable);
};
// Static variable shared by all instances
MyClass.staticProperty = "baz";
var myInstance = new MyClass();
staticProperty is defined in the MyClass object (which is a function) and has nothing to do with its created instances, JavaScript treats fun...
SVN needs-lock 设置强制只读属性（官方资料） - 更多技术 - 清泛网 - 专注...
...binary files should have the svn:needs-lock property set, this is verified by the script of step 1. This can be achieved automatically if users configure their svn client config file.
- under windows the SVN config file is "C:\Documents and Settings\[USER_NAME]\Application Data\Subversion\config"
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Count occurrences of a char in a string using Bash
...{char}" '{print NF-1}' <<< "${string}"
I'm splitting the string by $char and print the number of resulting fields minus 1.
If your shell does not support the <<< operator, use echo:
echo "${string}" | awk -F"${char}" '{print NF-1}'
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Pull request vs Merge request
...ject/merge_requests/resolve_conflicts.html
"GitLab resolves conflicts by creating a merge commit in the source
branch that is not automatically merged into the target branch. This
allows the merge commit to be reviewed and tested before the changes
are merged, preventing unintended change...
Check empty string in Swift?
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Here is how I check if string is blank. By 'blank' I mean a string that is either empty or contains only space/newline characters.
struct MyString {
static func blank(text: String) -> Bool {
let trimmed = text.trimmingCharacters(in: CharacterSet.whitespac...
How to reset Django admin password?
... shell using the command "python manage.py shell".
Import the User Model by typing the following command
"from django.contrib.auth.models import User"
Get all the users by typing the following command
"users = User.objects.all()"
Print a list of the users
For Python 2 users use the command "prin...
Groovy: what's the purpose of “def” in “def x = 0”?
...able here. It's important because you don't ever want to create a variable by accident.
It's somewhat acceptable in scripts (Groovy scripts and groovysh allow you to do so), but in production code it's one of the biggest evils you can come across which is why you must define a variable with def i...
How I can I lazily read multiple JSON values from a file/stream in Python?
...braces, but also pattern match json. It's a sort of json-preparse followed by a json parse. Json is, in comparison to other formats, easy to parse so it's not always necessary to go for a parsing library, nevertheless, how to should we solve these conflicting issues?
Generators to the rescue!
The ...
Ternary operator (?:) in Bash
...to test for the empty string specifically. I like to use the syntaxes used by zsh ('PARAMETER EXPANSION' in the zshexpn manpage) but I don't know much about their portability.
– John P
Feb 23 '18 at 3:31
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