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How do I encode/decode HTML entities in Ruby?
...text in a database, then expect your database to do a lot of complaining about bad characters. Encoded entities are encoded to allow them to transfer as plain text. Decoding them can, and most likely will, revert them to upper-bit-set characters, AKA binary. Almost as likely, you could end up with m...
Regular expression for matching latitude/longitude coordinates?
...
It accepts values out side the allowed range for lats and longs. eg, 91,181
– Arun Karunagath
May 2 '18 at 11:01
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UIButton custom font vertical alignment
...same issue in UILabel, UIButton and such. The problem with the font turned out to be the fact that its ascender property was too small compared to the value of system fonts. Ascender is a vertical whitespace above font's characters. To fix your font you will have to download Apple Font Tool Suite co...
How do you debug PHP scripts? [closed]
... have is SSH and vim I still var_dump()/die() to find where the code goes south.
share
edited Mar 2 '16 at 5:37
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Database: To delete or not to delete records
I don't think I am the only person wondering about this. What do you usually practice about database behavior? Do you prefer to delete a record from the database physically? Or is it better to just flag the record with a "deleted" flag or a boolean column to denote the record is active or inactive?
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Vim: insert the same characters across multiple lines
...e—it’s just waiting for you to press another key, and eventually times out. Two experiments for you: first, try pressing escape and then immediately pressing another key, like j or ^L. You should see that Vim wasn’t busy after all; it was just waiting. Second, try changing 'timeout' to a lower...
How to list branches that contain a given commit?
How can I query git to find out which branches contain a given commit? gitk will usually list the branches, unless there are too many, in which case it just says "many (38)" or something like that. I need to know the full list, or at least whether certain branches contain the commit.
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Apply a function to every row of a matrix or a data frame
... result from the apply() had to be transposed using t() to get the same layout as the input matrix A.
A <- matrix(c(
0, 1, 1, 2,
0, 0, 1, 3,
0, 0, 1, 3
), nrow = 3, byrow = TRUE)
t(apply(A, 1, function(x) x / sum(x) ))
Result:
[,1] [,2] [,3] [,4]
[1,] 0 0.25 0.25 0.50
[2,] 0...
How to generate a create table script for an existing table in phpmyadmin?
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Mysqladmin can do the job of saving out the create table script.
Step 1, create a table, insert some rows:
create table penguins (id int primary key, myval varchar(50))
insert into penguins values(2, 'werrhhrrhrh')
insert into penguins values(25, 'weeeheheheh...
Are “while(true)” loops so bad? [closed]
... else block, the actOnInput is more indented, and if you're trying to work out what happens when testCondition returns true, you need to look carefully through the rest of the block to check that there isn't something after the else block which would occur whether running has been set to false or no...