Check if DateTime is valid Check if dateTimePicker value is before today check if files exist in directory and subdirectories Check if folder has subfolders (fastest) Check if form is closed Check if input string matches a specific format Check if Last Character of a String Is A Number check...
Check if the URL Is Valid Using Regular Expressions (Regex) One effective method for URL validation in C# involves leveraging the built-inRegexclass (regular expression).UsingRegex, we can define patterns that URLs should adhere to. This allows us to perform flexible and customizable validation. ...
check if date is valid jsBlueBerry - Vignesh4303 var date_regex = /^(0[1-9]|1[0-2])\/(0[1-9]|1\d|2\d|3[01])\/(19|20)\d{2}$/; if (!(date_regex.test(testDate))) { return false; } View another examples Add Own solution Log in, to leave a comment 3.75 4 ...
var regex = new RegExp("%PDF-1.[0-7]"); // This Regular Expression is used to check if the file is valid if(data.match(regex)) { alert(fileToCheck.name + " is a valid PDF File."); } } })(file)); The last step is a very simple method call, except I’ve added in an...
I want to check if a certain version of “Microsoft Visual C++ 2013 Redistributable (x86)” is installed. If a newer version of C++ 2013 is installed, that is also ok. I cannot check “HKLM\SOFTWARE\Classes\Installer\Dependencies\f65db027-aff3-4070-886a-0d87064aabb1}” in the registry...
Check ifinputis a IPv6 CIDR. Returns a boolean. ip-bigint- Convert IPv4 and IPv6 addresses to native BigInt and vice-versa ip-regex- Regular expression for matching IP addresses is-ip- Check if a string is an IP address cidr-regex- Check if a string is an IP address in CIDR notati...
check.contains(string, substring): Returnstrueifstringcontainssubstring,falseotherwise. check.in(substring, string): Returnstrueifsubstringis instring,falseotherwise. check.match(string, regex): Returnstrueifstringmatchesregex,falseotherwise. Number predicates ...
If no hint can be provided, or the hint is self-evident from the error message, the hint can be omitted, or a value of None can be used. obj Optional. An object providing context for the message (for example, the model where the problem was discovered). The object should be a ...
packagecom.mkyong.regex.date;importjava.text.ParseException;importjava.text.SimpleDateFormat;publicclassDateValidatorSimpleDateFormat{privatestaticfinalSimpleDateFormatsdf=newSimpleDateFormat("yyyy-M-d");publicstaticbooleanisValid(finalString date){booleanvalid=false;try{// why 2008-02-2x, 20-11-02, ...
uuidPasses for a validly formatted UUID. Conditional Validations Sometimes you may wish to require a given field conditionally, for example require a field only if another field has a greater value than 100. Or you may need two fields to have a given value only when another field is present...