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In Clojure how can I convert a String to a number?
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This will work on 10px or px10
(defn parse-int [s]
(Integer. (re-find #"\d+" s )))
it will parse the first continuous digit only so
user=> (parse-int "10not123")
10
user=> (parse-int "abc10def11")
10
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Programmatically get height of navigation bar
I know that the presence of the more view controller (navigation bar) pushes down the UIView by its height. I also know that this height = 44px. I have also discovered that this push down maintains the [self.view].frame.origin.y = 0 .
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Best way to create an empty object in JSON with PHP?
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Your solution could work..
The documentation specifies that (object) null will result in an empty object, some might therefor say that your code is valid and that it's the method to use.
PHP: Objects - Manual
If a value of any other type is conv...
How to remove a directory from git repository?
I have 2 directories on my GitHub repository. I'd like to delete one of them. How could I do that without deleting and re-creating entire repository?
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How to send a stacktrace to log4j?
...ectly to the logger, e.g.
try {
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} catch (Exception e) {
log.error( "failed!", e );
}
It's up to log4j to render the stack trace.
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How to avoid “RuntimeError: dictionary changed size during iteration” error?
I have checked all of the other questions with the same error yet found no helpful solution =/
11 Answers
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How to turn on front flash light programmatically in Android?
...sh light (not with camera preview) programmatically in Android. I googled for it but the help i found referred me to this page
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How to prevent form from submitting multiple times from client side?
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Use unobtrusive javascript to disable the submit event on the form after it has already been submitted. Here is an example using jQuery.
EDIT: Fixed issue with submitting a form without clicking the submit button. Thanks, ichiban.
$("body").on("submit", "form", function() {
$(this)...
How can I change the thickness of my tag
I want to change the thickness of my horizontal rule ( <hr> )in CSS. I know it can be done in HTML like so -
9 Answe...
Amazon SimpleDB vs Amazon DynamoDB
I have some basic understanding what Amazon SimpleDB is, but according to the Amazon DynamoDB description it seems to be almost the same: a NoSQL Key-value store service.
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