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Regex Email validation
... address is valid, pass the email address to the
MailAddress.MailAddress(String) class constructor.
public bool IsValid(string emailaddress)
{
try
{
MailAddress m = new MailAddress(emailaddress);
return true;
}
catch (FormatException)
{
return false;
...
Why is using 'eval' a bad practice?
...a security vulnerability, and it has to do with the trustworthiness of the string it's given as input. If that string comes, in whole or in part, from the outside world, there's a possibility of a scripting attack on your program if you're not careful. But that's thge derangement of an outside attac...
Changing the default header comment license in Xcode
...med IDETemplateMacros.plist
Add a FILEHEADER value to the Root and set its string value with your copyright text like Copyright © 2017 ...
Copy the file to one of the following locations
For a single project and user
<ProjectName>.xcodeproj/xcuserdata/[username].xcuserdatad/IDETemplateMacro...
HTML5: number input type that takes only integers?
...signed ints you'll have to fall back to "pattern" validation and thus lose extra features like the up and down arrows for browsers that support it). Is there another input type or perhaps an attribute that would restrict the input to just unsigned integers? I couldn't find any, thanks.
...
Generate a Hash from string in Javascript
I need to convert strings to some form of hash. Is this possible in JavaScript?
22 Answers
...
Javascript heredoc
...
Try ES6 String Template, you can do something like
var hereDoc = `
This
is
a
Multiple
Line
String
`.trim()
hereDoc == 'This\nis\na\nMultiple\nLine\nString'
=> true
You can use this great feature today by with 6to5 or TypeScr...
What is the MySQL VARCHAR max size?
...re and after MySQL 5.0.3
Values in VARCHAR columns are variable-length strings. The length can be specified as a value from 0 to 255 before MySQL 5.0.3, and 0 to 65,535 in 5.0.3 and later versions. The effective maximum length of a VARCHAR in MySQL 5.0.3 and later is subject to the maximum row s...
Convert stdClass object to array in PHP
...error because you'll be giving an object to a function that expects a JSON string as its input. In the answer, I am converting the object to a JSON string, and then feeding it as an input to json_decode() so it would return an array (the second parameter being as True indicates an array should be re...
Start a git commit message with a hashmark (#)
...(pclouds):
config: be strict on core.commentChar
We don't support comment strings (at least not yet). And multi-byte character encoding could also be misinterpreted.
The test with two commas is updated because it violates this. It's added with the patch that introduces core.commentChar in eff80a9 (...
Adding a newline into a string in C#
I have a string.
12 Answers
12
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