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How to set working/current directory in Vim?
...:e command I don't want to specify the whole path, just the new filename. Can it be done?
6 Answers
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How to change the playing speed of videos in HTML5?
... @Sushan .querySelector returns the first matching one. You can use .querySelectorAll, but you need to iterate through them instead of directly using the code in these answers.
– leewz
Jul 6 '17 at 5:01
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how to fire event on file select
...ent doesn't trigger when I select the same file again. Any other way which can work every time?
– Tᴀʀᴇǫ Mᴀʜᴍᴏᴏᴅ
Dec 21 '17 at 13:07
1
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Check if list contains any of another list
... of O(n^2) for the first approach (the equivalent of two nested loops) you can do the check in O(n) :
bool hasMatch = parameters.Select(x => x.source)
.Intersect(myStrings)
.Any();
Also as a side comment you should capitalize your class name...
postgresql - add boolean column to table set default
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ALTER TABLE users
ADD COLUMN "priv_user" BOOLEAN DEFAULT FALSE;
you can also directly specify NOT NULL
ALTER TABLE users
ADD COLUMN "priv_user" BOOLEAN NOT NULL DEFAULT FALSE;
UPDATE: following is only true for versions before postgresql 11.
As Craig mentioned on filled tables it is mor...
How to disable/enable the sleep mode programmatically in iOS?
...f a countdown but it will go into 'sleep mode' whenever it reaches the allocated time to sleep.
4 Answers
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Passing a function with parameters as a parameter?
...unction wrapper that knows about the parameter and passes it to the actual callback implementation.
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Why are functions and methods in PHP case-insensitive?
Functions and methods in PHP are case-insensitive as illustrated in the following example.
2 Answers
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Using python “with” statement with try-except block
...nt
The code you described as old way
of doing things has a serious bug:
in case opening the file fails you
will get a second exception in the
finally clause because f is not
bound.
The equivalent old style code would be:
try:
f = open("file", "r")
try:
line = f.readline()
fina...
PostgreSQL: Can you create an index in the CREATE TABLE definition?
...primary keys by default, as described in this note:
PostgreSQL automatically creates an index for each unique constraint and primary key constraint to enforce uniqueness.
Other than that, if you want a non-unique index, you will need to create it yourself in a separate CREATE INDEX query.
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