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Bypass confirmation prompt for pip uninstall
I'm trying to uninstall all django packages in my superuser environment to ensure that all my webapp dependencies are installed to my virtualenv.
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How to auto-center jQuery UI dialog when resizing browser?
When you use jquery UI dialog, all works well, except for one thing.
When the browser is resized, the dialog just stays in it's initial position which can be really annoying.
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How can I get the URL of the current tab from a Google Chrome extension?
... tabs => {
let url = tabs[0].url;
// use `url` here inside the callback because it's asynchronous!
});
This requires that you request access to the chrome.tabs API in your extension manifest:
"permissions": [ ...
"tabs"
]
It's important to note that the definition of your "current...
Count(*) vs Count(1) - SQL Server
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There is no difference.
Reason:
Books on-line says "COUNT ( { [ [ ALL | DISTINCT ] expression ] | * } )"
"1" is a non-null expression: so it's the same as COUNT(*).
The optimizer recognizes it for what it is: trivial.
The same as EXISTS (SELECT * ... or EXISTS (SELECT 1 ...
Example:
SE...
How to hide soft keyboard on android after clicking outside EditText?
... you are defining it within an activity, avoid the activity parameter, or call hideSoftKeyboard(this).
The trickiest part is when to call it. You can write a method that iterates through every View in your activity, and check if it is an instanceof EditText if it is not register a setOnTouchListene...
How do SQL EXISTS statements work?
...hen tries to match this 'true/false' condition with outerquery." is what really cleared it up for me, I keep thinking that's how subqueries work (and many times they do), but what you said makes sense because the subquery relies on the outer query and therefore must be executed once per row
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Downloading MySQL dump from command line
..., then:
$ mysqldump -u [uname] -p db_name > db_backup.sql
If it's all DBs, then:
$ mysqldump -u [uname] -p --all-databases > all_db_backup.sql
If it's specific tables within a DB, then:
$ mysqldump -u [uname] -p db_name table1 table2 > table_backup.sql
You can even go as f...
initializing a boolean array in java
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I just need to initialize all the array elements to Boolean false.
Either use boolean[] instead so that all values defaults to false:
boolean[] array = new boolean[size];
Or use Arrays#fill() to fill the entire array with Boolean.FALSE:
Boolean[...
How to hide a in a menu with CSS?
I've realized that Chrome, it seems, will not allow me to hide <option> in a <select> . Firefox will.
13 Ans...
Can I use view pager with views (not with fragments)
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you dont need to cast to ViewPager at all as you are dealing with the ViewGroup interface
– Dori
Sep 1 '15 at 17:02
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