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Checking if a variable is defined?
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If you want to set a variable if it doesn't exist and leave it alone if it does, see @danmayer's answer (involving the ||= operator) below.
– jrdioko
Jul 12 '11 at 21:29
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Objective-C parse hex string to integer
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strtol() is your friend.
It converts a string to a long, and you can pass the base of the number in. Strip that # sign off first though, or pass to strtol a pointer to the first numerical character.
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What is Angular.noop used for?
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@abyrne85 It is more aesthetically pleasing and a good practice to use angular.noop as you always reuse the same empty function (instead of declaring a new anonymous function everytime). Performance-wise it makes no difference as the code for angular.noop is just an em...
Get hostname of current request in node.js Express
...rs.host is provided by the user. I can craft a request in 1 line of python and send you a request without that field making your code crash
– arboreal84
Jul 28 '16 at 18:31
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UILongPressGestureRecognizer gets called twice when pressing down
... look at the state to see if this is the start, middle or end of the event and act accordingly. i.e. you can throw away all events after the start, or only look at movement as you need. From the Class Reference:
Long-press gestures are continuous. The gesture begins (UIGestureRecognizerStateB...
AngularJS check if form is valid in controller
...ered Nov 13 '14 at 16:28
DamsorianDamsorian
1,41422 gold badges1212 silver badges77 bronze badges
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text-overflow: ellipsis not working
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You need to have CSS overflow, width (or max-width), display, and white-space.
http://jsfiddle.net/HerrSerker/kaJ3L/1/
span {
border: solid 2px blue;
white-space: nowrap;
text-overflow: ellipsis;
width: 100px;
display: block;
overflow: hidden
}
body {
ov...
java.lang.NoClassDefFoundError: com/sun/mail/util/MailLogger for JUnit test case for Java mail
I am using Java Mail API to read and parse emails. It is working fine with Servlet code.
7 Answers
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Force browser to download image files on click
...ain other than imgur.com it will not work as intended. Chrome deprecations and removals announcement
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string to string array conversion in java
...ff on your assignment, String.split splits strings on a regular expression and this expression may be an empty string:
String[] ary = "abc".split("");
Yields the array:
(java.lang.String[]) [, a, b, c]
Getting rid of the empty 1st entry is left as an exercise for the reader :-)
Note: In Java 8, th...