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PHP DOMDocument errors/warnings on html5-tags
...est workable solution is going to be to disable error reporting with libxml_use_internal_errors:
$dom = new DOMDocument;
libxml_use_internal_errors(true);
$dom->loadHTML('...');
libxml_clear_errors();
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Replacement for “rename” in dplyr
...me() function that works just like plyr::rename().
df <- rename(df, new_name = old_name)
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Build.scala, % and %% symbols meaning
...ithout the %%:
val appDependencies = Seq(
"org.scala-tools" % "scala-stm_2.9.1" % "0.3"
)
Assuming the scalaVersion for your build is 2.9.1, the following is identical:
val appDependencies = Seq(
"org.scala-tools" %% "scala-stm" % "0.3"
)
As you can see above, if you use %%, you don't...
How to fix 'sudo: no tty present and no askpass program specified' error?
...environment is configured to use, which very well could be (and should be ^_^) vi.
– Matt Styles
May 29 '15 at 22:59
8
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How to add directory to classpath in an application run profile in IntelliJ IDEA?
... Some documentation on how -Xbootclasspath works: docs.oracle.com/cd/E15289_01/doc.40/e15062/optionx.htm#i1018570
– Lambart
May 6 '15 at 17:37
3
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Find all records which have a count of an association greater than zero
...istinct
As an example
[10] pry(main)> Comment.distinct.pluck :article_id
=> [43, 34, 45, 55, 17, 19, 1, 3, 4, 18, 44, 5, 13, 22, 16, 6, 53]
[11] pry(main)> _.size
=> 17
[12] pry(main)> Article.joins(:comments).size
=> 45
[13] pry(main)> Article.joins(:comments).distinct.size
...
lsof survival guide [closed]
... Source: danielmiessler.com/study/lsof
– Uphill_ What '1
Oct 20 '14 at 7:34
One good way is to use the cheat gem...
how to change directory using Windows command line
...a popd:
C:\Temp>pushd D:\some\folder
D:\some\folder>popd
C:\Temp>_
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What is the difference between HAVING and WHERE in SQL?
...
Check out this w3schools link for more information
Syntax:
SELECT column_name, aggregate_function(column_name)
FROM table_name
WHERE column_name operator value
GROUP BY column_name
HAVING aggregate_function(column_name) operator value
A query such as this:
SELECT column_name, COUNT( column_n...
Selenium c# Webdriver: Wait Until Element is Present
...p://localhost/mypage");
var btn = driver.FindElement(By.CssSelector("#login_button"));
btn.Click();
var employeeLabel = driver.FindElement(By.CssSelector("#VCC_VSL"), 10);
Assert.AreEqual("Employee", employeeLabel.Text);
driver.Close();
...