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Error in if/while (condition) {: missing Value where TRUE/FALSE needed
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The evaluation of condition resulted in an NA. The if conditional must have either a TRUE or FALSE result.
if (NA) {}
## Error in if (NA) { : missing value where TRUE/FALSE needed
This can happen accidentally as the results of calculations:
if(TRUE &&...
Autoresizing masks programmatically vs Interface Builder / xib / nib
I was in an (probably false) assumption that enabling the right margin indicator in xib is equivalent to using UIViewAutoresizingFlexibleLeftMargin inside code and so on.
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How to take off line numbers in Vi?
For displaying line numbers in a file, I use command:
8 Answers
8
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What is android:ems attribute in Edit Text? [duplicate]
In EditText there is an attribute named android:ems . The description
is "Makes the EditText be exactly this many ems wide"
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Temporarily change current working directory in bash to run a command [duplicate]
I know I can use cd command to change my working directory in bash.
3 Answers
3
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Calling filter returns [duplicate]
I am learning the concept of filters in Python. I am running a simple code like this.
2 Answers
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jQuery - replace all instances of a character in a string [duplicate]
... so that you can specify the global (g) flag:
var s = 'some+multi+word+string'.replace(/\+/g, ' ');
(I removed the $() around the string, as replace is not a jQuery method, so that won't work at all.)
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Get total size of file in bytes [duplicate]
I have a File called filename which is located in E://file.txt .
4 Answers
4
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How to increase maximum execution time in php [duplicate]
I want to increase maximum execution time in php , not by changing php.ini file.
4 Answers
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print memory address of Python variable [duplicate]
How do I print the memory address of a variable in Python 2.7?
I know id() returns the 'id' of a variable or object, but this doesn't return the expected 0x3357e182 style I was expecting to see for a memory address.
I want to do something like print &x , where x is a C++ int variable for exam...