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Validate that a string is a positive integer
...t of the work.
str = str.replace(/^0+/, "") || "0"; removes all leading 0s from the string — but if that results in a blank string, restores a single 0.
Number(str): Convert str to a number; the number may well have a fractional portion, or may be NaN.
Math.floor: Truncate the number (chops off ...
What is the best practice for making an AJAX call in Angular.js?
...ty that I bound to the scope, in this example if I wanted to take the data from getFoos and post changes to it. if I try and access the $scope.foos in my update, I have the promise object and not the data, I can see how to get the data in the object itself, but it seems really really hacky.ideas?
...
Remove the first character of a string
...
Your problem seems unclear. You say you want to remove "a character from a certain position" then go on to say you want to remove a particular character.
If you only need to remove the first character you would do:
s = ":dfa:sif:e"
fixed = s[1:]
If you want to remove a character at a part...
ViewParam vs @ManagedProperty(value = “#{param.id}”)
... required="true" requiredMessage="Invalid page access. Please use a link from within the system."
converter="userConverter" converterMessage="Unknown user ID."
/>
</f:metadata>
<h:message for="user_id" />
with
private User user;
and an @FacesConverter("userConverter")....
Way to get number of digits in an int?
...it:
After I wrote the benchmark, I took a sneak peak into Integer.toString from Java 6, and I found that it uses:
final static int [] sizeTable = { 9, 99, 999, 9999, 99999, 999999, 9999999,
99999999, 999999999, Integer.MAX_VALUE };
// Requires positive x
static in...
How can I ignore a property when serializing using the DataContractSerializer?
...g. This is the behavior I am using, but now I need to ignore one property from the serializer. I know that one way to do this is to add the DataContract attribute to the class, and just put the DataMember attribute on all of the members that I want to include. I have reasons, though, that thi...
RegEx: Smallest possible match or nongreedy match
...ull string instead of the short match inside. How would I search backwards from the b?
– C4d
Feb 27 '17 at 11:19
3
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sometimes my file just freezes in my vi |vim, what happened?
...type Ctrl+C or Ctrl+D , it still freezes there. I kill -9 <pid> from another terminal, the pid is killed, but the file still freezes there.
...
How would I create a UIAlertView in Swift?
...
From the UIAlertView class:
// UIAlertView is deprecated. Use UIAlertController with a
preferredStyle of UIAlertControllerStyleAlert instead
On iOS 8, you can do this:
let alert = UIAlertController(title: "Alert", me...
Setting HTTP headers
...ow CORS works) is that the HTTP Method of a preflight request is different from the HTTP Method of the actual request. To initiate CORS, the browser sends a preflight request with HTTP Method OPTIONS, which you have to handle explicitly in your router, and then, if it receives the appropriate respon...