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How to check if string input is a number? [duplicate]
How do I check if a user's string input is a number (e.g. -1 , 0 , 1 , etc.)?
24 Answers
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Best way to encode text data for XML in Java?
...L is part of the standard Java framework - look in org.w3c.sax and org.w3c.dom. However, there are some easier-to-use framework around as well, such as JDom. Note that there may not be an "encoding strings for XML output" method - I was more recommending that the whole XML task should be done with a...
Check if a row exists, otherwise insert
...o write a T-SQL stored procedure that updates a row in a table. If the row doesn't exist, insert it. All this steps wrapped by a transaction.
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How can I detect the touch event of an UIImageView?
...w I want to detect the touch event and want to handle the event. How can I do that?
10 Answers
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Paperclip::Errors::MissingRequiredValidatorError with Rails 4
...rclip raises Paperclip::Errors::MissingRequiredValidatorError error if you do not do any of this.
In your case, you can add any of the following line to your Post model, after specifying has_attached_file :image
Option 1: Validate content type
validates_attachment_content_type :image, :content_ty...
Post Build exited with code 1
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copy /y "$(TargetDir)Dotfuscated\" "$(TargetDir)" this command notworking for me and if i am write exit 0 at end then work fine. can u tell me why?
– Rikin Patel
Oct 22 '12 at 3:12
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Android: open activity without save into the stack
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no but the FLAG_ACTIVITY_NEW_TASK flag will do the job, list Activity will be added to the history but always at the top, so a back press from main Activity will not display the list Activity
– VinceFR
Sep 10 '12 at 20:10
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How to generate a random string of a fixed length in Go?
I want a random string of characters only (uppercase or lowercase), no numbers, in Go. What is the fastest and simplest way to do this?
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What is SQL injection? [duplicate]
Can someone explain SQL injection? How does it cause vulnerabilities? Where exactly is the point where SQL is injected?
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How do I increase modal width in Angular UI Bootstrap?
...I use a css class like so to target the modal-dialog class:
.app-modal-window .modal-dialog {
width: 500px;
}
Then in the controller calling the modal window, set the windowClass:
$scope.modalButtonClick = function () {
var modalInstance = $modal.open({
templateUrl: 'Ap...