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Convert xlsx to csv in Linux with command line
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Really the most hassle-free method of converting spreadsheets. Combined with a bash script, it will let you batch-process multiple files. for f in *.csv; do ssconvert "$f" "${f%.csv}.xlsx"; done The LibreOffice method could probably proc...
Android: Storing username and password?
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Most Android and iPhone apps I have seen use an initial screen or dialog box to ask for credentials. I think it is cumbersome for the user to have to re-enter their name/password often, so storing that info makes sense from a...
Media Player called in state 0, error (-38,0)
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I got this error when I was trying to get the current position (MediaPlayer.getCurrentPosition()) of media player when it wasn't in the prepared stated. I got around this by Keeping track of its state and only calling the getCurrentPosition() method after onPreparedListener is ca...
Android notification is not showing
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Android.OS.BuildVersionCodes.O equals 26?
– Peter Mortensen
Jun 10 '19 at 20:21
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Is there a way to make R beep/play a sound at the end of a script?
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@Mulone: works for me, MacOSX 10.11.1, R 3.2.2; you hear the faint "poump" sound.
– Benjamin
Nov 12 '15 at 0:32
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Does HTTP use UDP?
...streaming"; even if it in some sense of the word is since it's sending a (possibly large) resource serially over a network. Typically, the resource will be saved to local disk before being played back, so the network transfer is not what's usually meant by "streaming".
As commenters have pointed ou...
What is the order of precedence for CSS?
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Disclaimer: My team and I worked this piece out together with a blog post (https://vecta.io/blog/definitive-guide-to-css-styling-order) which I think will come in handy to all front-end developers.
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JavaScript string newline character?
...d of one. If you want short, /\r?\n/g will probably do (who still uses Mac OS 9 anyway?).
– mercator
Mar 27 '13 at 22:22
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Is there a way to take a screenshot using Java and save it to some sort of image?
...y Java commands to take a screenshot and save it? Or, do I need to use an OS specific program to take the screenshot and then grab it off the clipboard?
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iPhone: How to get current milliseconds?
...e1970];
It returns the number of seconds since epoch as a double. I'm almost sure you can access the milliseconds from the fractional part.
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