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How to maintain aspect ratio using HTML IMG tag
...f an img tag to 64, it's not maintaining the aspect ratio, so the image looks distorted.
9 Answers
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How to copy file from HDFS to the local file system
...0070), browse to the file you intend to copy, scroll down the page and click on download the file.
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How to get last items of a list in Python?
...o do it with slicing, but I can't seem to get it. I can get the first 9 like this:
5 Answers
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How to center absolute div horizontally using CSS?
...ies how far to offset the margin edges from the sides of the window.
Like 'top', but specifies how far a box's right margin edge is offset to the [left/right] of the [right/left] edge of the box's containing block.
Source:
http://www.w3.org/TR/CSS2/visuren.html#position-props
Note: The ele...
Keep SSH session alive [closed]
... HostName remotehost.com
ServerAliveInterval 240
To enable sending a keep-alive signal for all hosts, place the following contents in the configuration file:
Host *
ServerAliveInterval 240
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How to define a preprocessor symbol in Xcode
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Go to your Target or Project settings, click the Gear icon at the bottom left, and select "Add User-Defined Setting". The new setting name should be GCC_PREPROCESSOR_DEFINITIONS, and you can type your definitions in the right-hand field.
Per Steph's comments, the ful...
mongodb, replicates and error: { “$err” : “not master and slaveOk=false”, “code” : 13435 }
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You have to set "slave okay" mode to let the mongo shell know that you're allowing reads from a secondary. This is to protect you and your applications from performing eventually consistent reads by accident. You can do this in the shell with:
rs.s...
rejected master -> master (non-fast-forward)
...try to git push. Apparently your local branch is out of sync with your tracking branch.
Depending on project rules and your workflow you might also want to use git pull --rebase.
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Math - mapping numbers
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If your number X falls between A and B, and you would like Y to fall between C and D, you can apply the following linear transform:
Y = (X-A)/(B-A) * (D-C) + C
That should give you what you want, although your question is a little ambiguous, since you could also map the interva...
Type.GetType(“namespace.a.b.ClassName”) returns null
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Type.GetType("namespace.qualified.TypeName") only works when the type is found in either mscorlib.dll or the currently executing assembly.
If neither of those things are true, you'll need an assembly-qualified name:
Type.GetType("namespace.qualified.TypeName, Assembly.Name")
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