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String isNullOrEmpty in Java? [duplicate]
....isNotEmpty(str)
StringUtils.isBlank(str) or StringUtils.isNotBlank(str)
from Apache commons-lang.
The difference between empty and blank is : a string consisted of whitespaces only is blank but isn't empty.
I generally prefer using apache-commons if possible, instead of writing my own utility m...
How do you post to an iframe?
...re a way to save the content of the output frame to a file (e.g., response from the server to which the form has been submitted) ?
– ZeroGraviti
Jul 20 '16 at 0:39
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python capitalize first letter only
...wer is not correct. . capitalize will also transform other chars to lower. From official docs: "Return a titlecased version of S, i.e. words start with title case characters, all remaining cased characters have lower case."
– karantan
Jan 3 '17 at 11:34
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How to merge remote master to local branch
I have a local branch of a project ("configUpdate") that I've forked from somebody else's project and I've done a load of changes on it and would like to merge the changes they've made in to my local branch.
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User recognition without cookies or local storage
...nd I can currently get the user's IP address, browser and operating system from their user agent.
12 Answers
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How to apply shell command to each line of a command output?
Suppose I have some output from a command (such as ls -1 ):
8 Answers
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Where is the itoa function in Linux?
...e sprintf(target_string,"%d",source_int) or (better yet, because it's safe from buffer overflows) snprintf(target_string, size_of_target_string_in_bytes, "%d", source_int). I know it's not quite as concise or cool as itoa(), but at least you can Write Once, Run Everywhere (tm) ;-)
Here's the old (...
How can I have grep not print out 'No such file or directory' errors?
... to pass in -R or the path.
git grep pattern
That will show all matches from your current directory down.
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Difference between Mutable objects and Immutable objects [duplicate]
...ct's data) cannot change after construction. Examples of immutable objects from the JDK include String and Integer.
For example:(Point is mutable and string immutable)
Point myPoint = new Point( 0, 0 );
System.out.println( myPoint );
myPoint.setLocation( 1.0, 0.0 );
Syst...
Regular expression to get a string between two strings in Javascript
...chnique helps to a greater extent. Trying to grab all between cow and milk from "Their\ncow\ngives\nmore\nmilk", we see that we just need to match all lines that do not start with milk, thus, instead of cow\n([\s\S]*?)\nmilk we can use:
/cow\n(.*(?:\n(?!milk$).*)*)\nmilk/gm
See the regex demo (if t...