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Selecting last element in JavaScript array [duplicate]
...gth less 1.
Mozilla Docs on Slice
Performance of the various methods for selecting last array element
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JPA eager fetch does not join
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JPA doesn't provide any specification on mapping annotations to select fetch strategy. In general, related entities can be fetched in any one of the ways given below
SELECT => one query for root entities + one query for related mapped entity/collection of each root entity = (n+1) que...
How do I use jQuery's form.serialize but exclude empty fields
... looking over the jQuery docs and I think we can do this in one line using selectors:
$("#myForm :input[value!='']").serialize() // does the job!
Obviously #myForm gets the element with id "myForm" but what was less obvious to me at first was that the space character is needed between #myForm and...
UTF-8 without BOM
... solution to your problem:
If you want to save a file with other encodings select save as and extend the save button in file dialog and select "Save with encoding". Or if you you want to get rid of this setting permanently just open File menu and select "Advanced save options" and there you should s...
Where is the “Create Unit Tests” selection?
..."Show commands containing" text box to filter out CreateUnitTests command, select it. Choose "Text Editor" in "Use new shortcut in" combo, and press shortcut you want in "Press shortcut keys" text field (e.g., Ctrl+T, Ctrl+C). Finally, press Assign button. Enjoy!
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Class JavaLaunchHelper is implemented in both … libinstrument.dylib. One of the two will be used. Wh
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Install Java 7u21 from: http://www.oracle.com/technetwork/java/javase/downloads/java-archive-downloads-javase7-521261.html#jdk-7u21-oth-JPR
Set these variables:
export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.7.0_21.jdk/Contents/Home
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Failed to locate the winutils binary in the hadoop binary path
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Simple Solution:
Download it from here and add to $HADOOP_HOME/bin
(Source)
IMPORTANT UPDATE:
For hadoop-2.6.0 you can download binaries from Titus Barik blog >>.
I have not only needed to point HADOOP_HOME to extracted directory [path], but al...
How can I tell when a MySQL table was last updated?
...e information_schema database to tell you when another table was updated:
SELECT UPDATE_TIME
FROM information_schema.tables
WHERE TABLE_SCHEMA = 'dbname'
AND TABLE_NAME = 'tabname'
This does of course mean opening a connection to the database.
An alternative option would be to "touch" a ...
How do I pause my shell script for a second before continuing?
...ython) you need to import the time module
import time
time.sleep(1)
or
from time import sleep
sleep(1)
For shell script is is just
sleep 1
Which executes the sleep command. eg. /bin/sleep
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How do I enlarge an EER Diagram in MySQL Workbench?
... Model > Model Options;
Choose the "Diagram" tab;
Uncheck "Use defaults from global settings..." at the bottom;
Confirm "Ok". This may crash Workbench, depending on the version and/or operating system.
Either way, "Model > Diagram Properties and Size..." should now be enabled, even if you had...