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Check if inputs are empty using jQuery
I have a form that I would like all fields to be filled in. If a field is clicked into and then not filled out, I would like to display a red background.
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Do c++11 lambdas capture variables they don't use?
...ed in the capture list and (b) used in the body of the lambda expression. If a variable is not expressly named and you don't use the variable in the lambda expression, then the variable is not captured. In your example, my_huge_vector is not captured.
Per C++11 §5.1.2[expr.prim.lambda]/11:
If a ...
What is the Scala identifier “implicitly”?
...used in SeqLike#sorted. Implicit Parameters are also used to pass Array manifests, and CanBuildFrom instances.
Scala 2.8 allows a shorthand syntax for implicit parameters, called Context Bounds. Briefly, a method with a type parameter A that requires an implicit parameter of type M[A]:
def foo[A](...
Node.js Mongoose.js string to ObjectId function
...n to turn a string into an objectId in node using mongoose? The schema specifies that something is an ObjectId, but when it is saved from a string, mongo tells me it is still just a string. The _id of the object, for instance, is displayed as objectId("blah") .
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Rails 4 - passing variable to partial
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You need the full render partial syntax if you are passing locals
<%= render @users, :locals => {:size => 30} %>
Becomes
<%= render :partial => 'users', :collection => @users, :locals => {:size => 30} %>
Or to use the new hash sy...
Using .text() to retrieve only text not nested in child tags
If I have html like this:
25 Answers
25
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How can I convert byte size into a human-readable format in Java?
...k = 1,000)
public static String humanReadableByteCountSI(long bytes) {
if (-1000 < bytes && bytes < 1000) {
return bytes + " B";
}
CharacterIterator ci = new StringCharacterIterator("kMGTPE");
while (bytes <= -999_950 || bytes >= 999_950) {
bytes /...
C++ include and import difference
What is the difference between #include and #import in C++?
5 Answers
5
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Store query result in a variable using in PL/pgSQL
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What if I need multiple variables. Like select test_table.name, test_table.id, test_table.ssn?
– Dao Lam
Mar 5 '15 at 20:00
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How to send an email with Python?
... following example (reproduced from the Python documentation). Notice that if you follow this approach, the "simple" task is indeed simple, and the more complex tasks (like attaching binary objects or sending plain/HTML multipart messages) are accomplished very rapidly.
# Import smtplib for the act...