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Check if multiple strings exist in another string
How can I check if any of the strings in an array exists in another string?
15 Answers
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How to detect my browser version and operating system using JavaScript?
...set,ix;
// In Opera, the true version is after "Opera" or after "Version"
if ((verOffset=nAgt.indexOf("Opera"))!=-1) {
browserName = "Opera";
fullVersion = nAgt.substring(verOffset+6);
if ((verOffset=nAgt.indexOf("Version"))!=-1)
fullVersion = nAgt.substring(verOffset+8);
}
// In MSIE, the t...
Javascript: How to check if a string is empty? [duplicate]
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I check length.
if (str.length == 0) {
}
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How to check if the string is empty?
... they are considered false in a Boolean context, so you can just do this:
if not myString:
This is the preferred way if you know that your variable is a string. If your variable could also be some other type then you should use myString == "". See the documentation on Truth Value Testing for ot...
Is “else if” faster than “switch() case”? [duplicate]
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For just a few items, the difference is small. If you have many items you should definitely use a switch.
If a switch contains more than five items, it's implemented using a lookup table or a hash list. This means that all items get the same access ti...
Java FileOutputStream Create File if not exists
Is there a way to use FileOutputStream in a way that if a file (String filename) does not exist, then it will create it?
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How to check if mysql database exists
Is it possible to check if a (MySQL) database exists after having made a connection.
21 Answers
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Generic TryParse
I am trying to create a generic extension that uses 'TryParse' to check if a string is a given type:
23 Answers
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How to check if a file contains a specific string using Bash
I want to check if a file contains a specific string or not in bash. I used this script, but it doesn't work:
11 Answers
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What is the relative performance difference of if/else versus switch statement in Java?
Worrying about my web application's performances, I am wondering which of "if/else" or switch statement is better regarding performance?
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