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Index on multiple columns in Ruby on Rails
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219
The order does matter in indexing.
Put the most selective field first, i.e. the field that na...
jQuery - get a list of values of an attribute from elements of a class
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195
$(".object").attr("level") will just return the attribute of first the first .object element.
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Catching all javascript unhandled exceptions
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133
You can do this by using window.onerror method.
window.onerror = function myErrorHandler(erro...
Favorite way to create an new IEnumerable sequence from a single value?
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145
Your example is not an empty sequence, it's a sequence with one element. To create an empty s...
jQuery “Does not have attribute” selector?
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edited May 29 at 15:10
Jeromy French
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Change a column type from Date to DateTime during ROR migration
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510
First in your terminal:
rails g migration change_date_format_in_my_table
Then in your migrat...
How to get the home directory in Python?
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1592
You want to use os.path.expanduser.
This will ensure it works on all platforms:
from os.path...
How to Get Element By Class in JavaScript?
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11 Answers
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fastest (low latency) method for Inter Process Communication between Java and C/C++
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10 Answers
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Print All JVM Flags
...d suitable option faster:
https://chriswhocodes.com/ (OracleJDK 6/7/8/9/10/11/12, OpenJDK 8/9/10/11, Graal CE/EE, OpenJ9, Zing)
http://jvm-options.tech.xebia.fr/
http://www.pingtimeout.fr/2012/05/jvm-options-complete-reference.html
http://stas-blogspot.blogspot.com/2011/07/most-complete-list-o...