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Check if an element is present in an array [duplicate]
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!==-1 [extra chars]
– Francisc
Aug 7 '13 at 12:22
3
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Replace all non Alpha Numeric characters, New Lines, and multiple White Space with one Space
...ence between the regex patterns on different browsers with different sized strings.
So basically i used jsPerf on
Testing in Chrome 65.0.3325 / Windows 10 0.0.0
Testing in Edge 16.16299.0 / Windows 10 0.0.0
The regex patterns i tested were
/[\W_]+/g
/[^a-z0-9]+/gi
/[^a-zA-Z0-9]+/g
I load...
Implicit type conversion rules in C++ operators
...re promoted to int
Note. The minimum size of operations is int. So short/char are promoted to int before the operation is done.
In all your expressions the int is promoted to a float before the operation is performed. The result of the operation is a float.
int + float => float + float = flo...
Check string for palindrome
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You can check if a string is a palindrome by comparing it to the reverse of itself:
public static boolean isPalindrome(String str) {
return str.equals(new StringBuilder(str).reverse().toString());
}
or for versions of Java earlier than 1...
Regex match everything after question mark?
...entheses are a capturing group that you can use to extract the part of the string you are interested in.
If the string can contain new lines you may have to use the "dot all" modifier to allow the dot to match the new line character. Whether or not you have to do this, and how to do this, depends o...
Check if a string contains a number
...mbers, whereas I'm looking for numbers in what I'd like to be a numberless string.
I need to enter a string and check to see if it contains any numbers and if it does reject it.
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Split a string by another string in C#
I've been using the Split() method to split strings, but this only appears to work if you are splitting a string by a character. Is there a way to split a string , with another string being the split by parameter?
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How to make my custom type to work with “range-based for loops”?
... return false;
}
};
live example of this.
Minimal test code is:
struct cstring {
const char* ptr = 0;
const char* begin() const { return ptr?ptr:""; }// return empty string if we are null
null_sentinal_t end() const { return {}; }
};
cstring str{"abc"};
for (char c : str) {
std::cout &...
When should I use File.separator and when File.pathSeparator?
In the File class there are two strings, separator and pathSeparator .
3 Answers
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How to activate “Share” button in android app?
...android.content.Intent.ACTION_SEND);
sharingIntent.setType("text/plain");
String shareBody = "Here is the share content body";
sharingIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, "Subject Here");
sharingIntent.putExtra(android.content.Intent.EXTRA_TEXT, shareBody);
startActivity(Intent.cre...