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Verifying that a string contains only letters in C#
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Only letters:
Regm>ex m>.IsMatch(input, @"^[a-zA-Z]+$");
Only letters and numbers:
Regm>ex m>.IsMatch(input, @"^[a-zA-Z0-9]+$");
Only letters, numbers and underscore:
Regm>ex m>.IsMatch(input, @"^[a-zA-Z0-9_]+$");
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How do I auto-reload a Chrome m>ex m>tension I'm developing?
...the follow way: ** "background": { "page": "indm>ex m>.html", ** . In my content_script js file, I couldn't access this function. I believe, it is for security reseons.
– titusfx
Jun 14 '17 at 17:54
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What is a “static” function in C?
The question was about plain c functions, not c++ static methods, as clarified in comments.
12 Answers
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How do I center floated elements?
...e:
An inline block is placed inline (ie. on the same line as adjacent content), but it behaves as a block.
this often can effectively replace floats:
The real use of this value is when you want to give an inline element a width. In some circumstances some browsers don't allow a width on ...
What does m>ex m>tern inline do?
I understand that inline by itself is a suggestion to the compiler, and at its discretion it may or may not inline the function, and it will also produce linkable object code.
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In Clojure 1.3, How to read and write a file
...with slurp and spit:
(def s (slurp "filename.txt"))
(s now contains the content of a file as a string)
(spit "newfile.txt" s)
This creates newfile.txt if it doesnt m>ex m>it and writes the file content.
If you want to append to the file you can do
(spit "filename.txt" s :append true)
To read or...
Find the IP address of the client in an SSH session
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Check if there is an environment variable called:
$SSH_CLIENT
OR
$SSH_CONNECTION
(or any other environment variables) which gets set when the user logs in. Then process it using the user login script.
m>Ex m>tract the IP:
$ echo $SSH_CLIENT | awk '{...
How does this JavaScript/jQuery syntax work: (function( window, undefined ) { })(window)?
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The undefined is a normal variable and can be changed simply with undefined = "new value";. So jQuery creates a local "undefined" variable that is REALLY undefined.
The window variable is made local for performance reasons. Because when JavaScrip...
How can I include a YAML file inside another?
So I have two YAML files, "A" and "B" and I want the contents of A to be inserted inside B, either spliced into the m>ex m>isting data structure, like an array, or as a child of an element, like the value for a certain hash key.
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What is the difference between properties and attributes in HTML?
...'value') // returns "Name:"
The value property reflects the current tm>ex m>t-content inside the input box, whereas the value attribute contains the initial tm>ex m>t-content of the value attribute from the HTML source code.
So if you want to know what's currently inside the tm>ex m>t-box, read the property. If...