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How to align input forms in HTML
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How can you span columns with this solution? In order to center align submit button.
– eugenekr
Mar 21 '19 at 13:05
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How to log something in Rails in an independent log file?
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If you want to change all the default logging for that specific model, you can simply use User.logger = Logger.new(STDOUT) or wherever you want to log to. In the same way, ActiveRecord::Base.logger = Logger.new(STDOUT) will change all the logging ...
For each row return the column name of the largest value
... If I have two equal columns I usually just pick the first. These are border cases which do not upset my statistical analysis.
– dmvianna
Jul 18 '13 at 23:59
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How do I create a SHA1 hash in ruby?
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Need require 'digest/sha1' in order to use SHA1 method.
– Gus Shortz
May 16 '13 at 19:22
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Why does the use of 'new' cause memory leaks?
...cleaned up automatically.
You need to pass a pointer to it to delete in order to clean it up:
However, your second example is worse: you're dereferencing the pointer, and making a copy of the object. This way you lose the pointer to the object created with new, so you can never delete it even ...
Is there a null-coalescing (Elvis) operator or safe navigation operator in javascript?
I'll explain by example:
21 Answers
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Redefine tab as 4 spaces
...our tab character width to be different from the width of your indents, in order to reduce the chance of tab characters masquerading as proper indents. (list + expandtab can help here too) Also, 8-char-wide tabs is "the standard" -- your terminal, Python, and many other tools default to 8-char-wide-...
WARNING: Can't verify CSRF token authenticity rails
... that you have <%= csrf_meta_tag %> in your layout
Add beforeSend to all the ajax request to set the header like below:
$.ajax({ url: 'YOUR URL HERE',
type: 'POST',
beforeSend: function(xhr) {xhr.setRequestHeader('X-CSRF-Token', $('meta[name="csrf-token"]').attr('content'))},
data: '...
Sleep in JavaScript - delay between actions
...eout and setInterval, you can wrap them in functions that just reverse the order of the arguments and give them nice names:
function after(ms, fn){ setTimeout(fn, ms); }
function every(ms, fn){ setInterval(fn, ms); }
CoffeeScript versions:
after = (ms, fn)-> setTimeout fn, ms
every = (ms, fn)...
How to get first character of a string in SQL?
...y, by having parameters lists that are not the conventional commalists, in order to make them easily identifiable as being from the standard!
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