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WebDriver: check if an element exists? [duplicate]
... It seems the default implicit wait time is 0, (seleniumhq.org/docs/04_webdriver_advanced.html) So unless you've configured it to be longer, this shouldn't be necessary.
– Andrew M
May 24 '12 at 9:43
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How to perform a mysqldump without a password prompt?
... the config file via --defaults-file. Like ` mysqldump --defaults-file=my_other.cnf --print-defaults`
– dennis
Jul 23 '13 at 12:46
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Plot two graphs in same plot in R
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@uvts_cvs Yes, it preserves the original graph in toto.
– Sam
Sep 23 '12 at 13:02
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How do I sort an array of hashes by a value in the hash?
...by has sort! for in-place sorting, but there's no in-place variant for sort_by in Ruby 1.8. In practice, you can do:
sorted = sort_me.sort_by { |k| k["value"] }
puts sorted
As of Ruby 1.9+, .sort_by! is available for in-place sorting:
sort_me.sort_by! { |k| k["value"]}
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How do I select an element in jQuery by using a variable for the ID?
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row = $("body").find('#' + row_id);
More importantly doing the additional body.find has no impact on performance. The proper way to do this is simply:
row = $('#' + row_id);
s...
mysql check collation of a table
...luding the collation.
For example SHOW TABLE STATUS where name like 'TABLE_NAME'
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pandas: multiple conditions while indexing data frame - unexpected behavior
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You can use query(), i.e.:
df_filtered = df.query('a == 4 & b != 2')
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Convert SQLITE SQL dump file to POSTGRESQL
...made constraint such as this:
CREATE TABLE tablename (
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unsigned_column_name integer CHECK (unsigned_column_name > 0)
);
While SQLite defaults null values to '', PostgreSQL requires them to be set as NULL.
The syntax in the SQLite dump file appears to be mostly compatible with Postgre...
How to define an enumerated type (enum) in C?
...one like this:
enum strategy {RANDOM, IMMEDIATE, SEARCH};
enum strategy my_strategy = IMMEDIATE;
However, you can use a typedef to shorten the variable declarations, like so:
typedef enum {RANDOM, IMMEDIATE, SEARCH} strategy;
strategy my_strategy = IMMEDIATE;
Having a naming convention to dist...
Difference between this and self in self-type annotations?
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btw you can also do _: B => for the non-alias case for simplicity
– Creos
Jun 19 '19 at 17:29
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