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Check if a number has a decimal place/is a whole number
...e numerical value of the number, regardless of format. It treats numerical strings containing whole numbers with a fixed decimal point the same as integers:
'10.0' % 1; // returns 0
10 % 1; // returns 0
'10.5' % 1; // returns 0.5
10.5 % 1; // returns 0.5
...
Maven: The packaging for this project did not assign a file to the build artifact
...ac 10.6.6. I have a JAR project and when I run the command "mvn clean install:install", I'm getting the error,
8 Answers
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How to see if an NSString starts with a certain other string?
I am trying to check to see if a string that I am going to use as URL starts with http. The way I am trying to check right now doesn't seem to be working. Here is my code:
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Why do we need to install gulp globally and locally?
2 manuals about gulp say that I need to install gulp first globally (with -g flag) and then one more time locally. Why do I need this?
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Calling a Method From a String With the Method's Name in Ruby
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Use this:
> a = "my_string"
> meth = a.method("size")
> meth.call() # call the size method
=> 9
Simple, right?
As for the global, I think the Ruby way would be to search it using the methods method.
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Regular expression for matching HH:MM time format
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For people matching 12 hours (with am/pm) strings with the above regex, keep in mind that testing "13:00 PM" against the regex will return true (some values) because "3:00 PM" part in the string is valid. I resolved the issue by using the following if statement let...
Java, Simplified check if int array contains int
...es work with object types (not primitives):
public boolean contains(final String[] array, final String key) {
return Arrays.asList(array).contains(key);
}
or even:
public <T> boolean contains(final T[] array, final T key) {
return Arrays.asList(array).contains(key);
}
But you ca...
How do I “git blame” a deleted line?
...w the contents of the line, this is an ideal use case for:
git log -S <string> path/to/file
which shows you commits which introduce or remove an instance of that string. There's also the -G<regex> which does the same thing with regular expressions! See man git-log and search for the -...
Difference between matches() and find() in Java Regex
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matches tries to match the expression against the entire string and implicitly add a ^ at the start and $ at the end of your pattern, meaning it will not look for a substring. Hence the output of this code:
public static void main(String[] args) throws ParseException {
Pattern...
Pinging servers in Python
...ll. This avoids shell injection vulnerability in cases where your hostname string might not be validated.
import platform # For getting the operating system name
import subprocess # For executing a shell command
def ping(host):
"""
Returns True if host (str) responds to a ping request....