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Centering a background image, using CSS
...hp?ig=6179 I am not sure how to upload images to jsfiddle, if you can help me out there jsfiddle.net/yWrQP
– X10nD
Apr 15 '10 at 7:52
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Detecting an “invalid date” Date instance in JavaScript
...String.call(d) === "[object Date]") {
// it is a date
if (isNaN(d.getTime())) { // d.valueOf() could also work
// date is not valid
} else {
// date is valid
}
} else {
// not a date
}
Update [2018-05-31]: If you are not concerned with Date objects from other JS contexts (extern...
How do I update/upsert a document in Mongoose?
Perhaps it's the time, perhaps it's me drowning in sparse documentation and not being able to wrap my head around the concept of updating in Mongoose :)
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Using Python 3 in virtualenv
...
simply run
virtualenv -p python3 envname
Update after OP's edit:
There was a bug in the OP's version of virtualenv, as described here. The problem was fixed by running:
pip install --upgrade virtualenv
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Convert.ChangeType() fails on Nullable Types
I want to convert a string to an object property value, whose name I have as a string. I am trying to do this like so:
6 An...
How to check a checkbox in capybara?
...
I found the following worked for me:
# Check
find(:css, "#cityID[value='62']").set(true)
# Uncheck
find(:css, "#cityID[value='62']").set(false)
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i...
Check if a number has a decimal place/is a whole number
... != 0
// 23 % 1 = 0
// 23.5 % 1 = 0.5
Note that this is based on the numerical value of the number, regardless of format. It treats numerical strings containing whole numbers with a fixed decimal point the same as integers:
'10.0' % 1; // returns 0
10 % 1; // returns 0
'10.5' % 1; // returns 0....
Java compiler level does not match the version of the installed Java project facet
...project - Click Properties - Click the "Project Facets" option on the left menu - Under Facets section "Java" on the right, change it to "1.6", "1.7" or your version... - Click Ok
– Thiago Pereira
May 29 '15 at 11:56
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Hidden features of Eclipse [closed]
Alright it can be a lame question, but everybody uses these things differently. What's some of the best time savers out there for this IDE.
Tom
...
How do I inspect the view hierarchy in iOS?
...r app is running to pause execution and inspect the views at the current moment.
More info at Apple's documentation.
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