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Command Prompt - How to add a set path only for that batch file executing?
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Just like any other environment variable, with SET:
SET PATH=%PATH%;c:\whatever\else
If you want to have a little safety check built in first, check to see if the new path exists first:
IF EXIST c:\whatever\else SET PATH=%PATH%;c:\whatever\else
If you want that to b...
How to execute shell command in Javascript
I want to write a JavaScript function which will execute the system shell commands ( ls for example) and return the value.
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What is the difference between an annotated and unannotated tag?
... editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
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How to hide element using Twitter Bootstrap and show it using jQuery?
...ay to address this annoyance is to create your own CSS class that does not set the !important at the end of rule, like this:
.hideMe {
display: none;
}
and used like so :
<div id="header-mask" class="hideMe"></div>
and now jQuery hiding works
$('#header-mask').show();
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How do you query for “is not null” in Mongo?
...x only exist when there is something in the field). Here is a sample data set:
db.foo.find()
{ "_id" : ObjectId("544540b31b5cf91c4893eb94"), "imageUrl" : "http://example.com/foo.jpg" }
{ "_id" : ObjectId("544540ba1b5cf91c4893eb95"), "imageUrl" : "http://example.com/bar.jpg" }
{ "_id" : ObjectId("5...
Search text in fields in every table of a MySQL database
... @Dan Rather's answer helped too, because the db I was looking through was setup obscurely and I couldn't figure out what the column name or table would be for sure just by looking...
– DrCord
Jan 1 '14 at 19:14
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Peak-finding algorithm for Python/SciPy
...We can see that the width parameter is not very useful here because if you set a minimum width too high, then it won't be able to track very close peaks in the high frequency part. If you set width too low, you would have many unwanted peaks in the left part of the signal. Same problem with distance...
How do I run only specific tests in Rspec?
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It isn't easy to find the documentation, but you can tag examples with a hash. Eg.
# spec/my_spec.rb
describe SomeContext do
it "won't run this" do
raise "never reached"
end
it "will run this", :focus => true do
1.should ==...
What is the dual table in Oracle?
I've heard people referring to this table and was not sure what it was about.
14 Answers
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Convert string to a variable name
I am using R to parse a list of strings in the form:
10 Answers
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