numbers

I have a simple controlled input of type number like below. <input type="number" value={+value} step={1} onChange={this.updateMyChange} /> My value often returns a decimal number like 123.123 . My problem is, when I try edit the value. The cursor loses focus and shifts to the beginning ignoring the whole numbers as soon as the decimal places are cleared. Like below: How do I address this? Immediately after the decimal places are cleared, the cursor jumps to the beginning thereby making it impossible to edit the whole numbers. Any help would be appreciated. Update Below is the remaining code as

I have a string that contains numbers separated by periods. When I sort it appears like this since it is a string: (ascii char order) 3.9.5.2.1.1 3.9.5.2.1.10 3.9.5.2.1.11 3.9.5.2.1.12 3.9.5.2.1.2 3.9.5.2.1.3 3.9.5.2.1.4 etc. I want it to sort like this: (in numeric order) 3.9.5.2.1.1 3.9.5.2.1.2 3.9.5.2.1.3 ... 3.9.5.2.1.9 3.9.5.2.1.10 3.9.5.2.1.11 3.9.5.2.1.12 I know that I can: Use the Split function to get the individual numbers Put the values into an object Sort the object I prefer to avoid all of that work if it is duplicating existing functionality. Is a method in the .net framework

This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center . Closed 7 years ago . I am beginner in C# and I am working with floating point numbers. I need to do subtraction between these two numbers but it does not work. I know it is caused by floating point number, but how can I fix it please and if you be so good can you explain me

I have an Object obj that I know is actually a long . In some Math code I need it as double . Is it safe to directly cast it to double? double x = (double)obj; Or should I rather cast it first to long and then to double. double x = (double)(long)obj; I also found another (less readable) alternative: double x = new Long((long)obj).doubleValue(); What are the dangers/implications of doing either? Solution Summary : obj is a Number and not a long . Java 6 requires explicit casting, e.g.: double x = ((Number)obj).doubleValue() Java 7 has working cast magic: double x = (long)obj For more details on

I'm creating a registration system that needs to check the name/pass etc. with REGEX (and prefer to), what I've got so far is: //Check so numbers aren't first, such as 00foobar preg_match('/^(?!\d)[a-z0-9]+$/iD',$usrname); //Just simple check preg_match('/^[a-zA-Z0-9]+$/',$psword); But I have to do stupid things in IF statements like: if strlen($psword) > 30 || if (strlen($psword) < 4) .... How would I impliment the length checking in my two original regular expression statements? This would make me so happy.. RageZ same but using the \w and \d for word and digits, but you might want also to