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What is the difference between PS1 and PROMPT_COMMAND
...able is set inside the PROMPT_COMMAND, which itself is a super complicated string that is evaluated at runtime by bash. It works, but it's more complicated than it needs to be. To be fair I wrote that PROMPT_COMMAND for myself about 10 years ago and it worked and didn't think too much about it.
For...
Hashing a dictionary?
...)))
This is much less computationally intensive than generating the JSON string or representation of the dictionary.
UPDATE: Please see the comments below, why this approach might not produce a stable result.
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How to manually send HTTP POST requests from Firefox or Chrome browser?
... feature broken for anyone else? When editing the parameters in the "Query String" box, after altering a single character, it refuses to alter the request any further. The only way to do it beyond that is to edit the entire URL/request (which is difficult because it's all smooshed together)
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What is the difference between a stored procedure and a view?
...nd why to use each.
Say I have two tables:
tbl_user, with columns: user_id, user_name, user_pw
tbl_profile, with columns: profile_id, user_id, profile_description
So, if I find myself querying from those tables A LOT... instead of doing the join in EVERY piece of SQL, I would define a view like...
Getting activity from context in android
...ass ProfileView extends LinearLayout
{
private TaskCompleteListener<String> callback;
TextView profileTitleTextView;
ImageView profileScreenImageButton;
boolean isEmpty;
ProfileData data;
String name;
public ProfileView(Context context, AttributeSet attrs, String n...
Scanning Java annotations at runtime [closed]
...ements(){
try {
//Get the package name from configuration file
String packageName = readConfig();
//Load the classLoader which loads this class.
ClassLoader classLoader = getClass().getClassLoader();
//Change the package structure to directory structure
String packagePa...
Python naming conventions for modules
...ention? Because I notice the built-in classes are in lowercase, e.g. list, string, etc.
– Ram Rachum
Apr 2 '09 at 23:54
4
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Safe (bounds-checked) array lookup in Swift, through optional bindings?
...sign choice made by the Swift developers. Take your example:
var fruits: [String] = ["Apple", "Banana", "Coconut"]
var str: String = "I ate a \( fruits[0] )"
If you already know the index exists, as you do in most cases where you use an array, this code is great. However, if accessing a subscript...
Assign pandas dataframe column dtypes
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Be careful if you have a column that needs to be a string but contains at least one value that could be converted to an int. All it takes is one value and the entire field is converted to float64
– Michael David Watson
May 5 '15 at 20:13...
Where can I find my Facebook application id and secret key?
In my Facebook account, where can I find these application IDs, secret key, all?
7 Answers
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