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Replace a value in a data frame based on a conditional (`if`) statement
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221
Easier to convert nm to characters and then make the change:
junk$nm <- as.character(junk$nm...
What is the email subject length limit?
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197
See RFC 2822, section 2.1.1 to start.
There are two limits that this
standard places on ...
View the Task's activity stack
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165
From the command line, you can use: adb shell dumpsys activity
This asks the activity manager...
RegEx: Grabbing values between quotation marks
...'ve been using the following with great success:
(["'])(?:(?=(\\?))\2.)*?\1
It supports nested quotes as well.
For those who want a deeper explanation of how this works, here's an explanation from user ephemient:
([""']) match a quote; ((?=(\\?))\2.) if backslash exists, gobble it, and wheth...
Better way to set distance between flexbox items
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Order a MySQL table by two columns
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answered Feb 5 '09 at 7:51
truppotruppo
22.2k44 gold badges3434 silver badges4545 bronze badges
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powershell - extract file name and extension
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176
If the file is coming off the disk and as others have stated, use the BaseName and Extension p...
How to style UITextview to like Rounded Rect text field?
...iew *textView = [[UITextView alloc] initWithFrame:CGRectMake(50, 220, 200, 100)];
//To make the border look very close to a UITextField
[textView.layer setBorderColor:[[[UIColor grayColor] colorWithAlphaComponent:0.5] CGColor]];
[textView.layer setBorderWidth:2.0];
//The rounded corner part, where...
Ignoring new fields on JSON objects using Jackson [duplicate]
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12 Answers
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Test whether a glob has any matches in bash
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19 Answers
19
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