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How to avoid null checking in Java?
...dition> is a boolean expression and <object> is an object whose toString() method's output will be included in the error.
An assert statement throws an Error (AssertionError) if the condition is not true. By default, Java ignores assertions. You can enable assertions by passing the optio...
How do I Sort a Multidimensional Array in PHP [duplicate]
...set contains columns that cannot be compared in a "dumb" manner (e.g. date strings) you can also specify how to convert these items to a value that can be directly compared (e.g. a DateTime instance).
It's associative if you want: this code takes care of sorting items, but you select the actual sort...
Default value of a type at Runtime [duplicate]
...
@Shimmy Why would this fail for string? The default value of string is null.
– Mike Zboray
Apr 19 '15 at 3:17
3
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How to simulate a click with JavaScript?
...ecified element.
* @param {Object} elem the target element.
* @param {String} event the type of the event (e.g. 'click').
*/
function triggerEvent( elem, event ) {
var clickEvent = new Event( event ); // Create the event.
elem.dispatchEvent( clickEvent ); // Dispatch the event.
}
Refe...
Is using Random and OrderBy a good shuffle algorithm?
...Or you could replace the > 0 with >= 0 and not have to (although, an extra RNG hit plus a redundant assignment)
– FryGuy
Nov 29 '09 at 20:40
4
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Check if a program exists from a Makefile
...= $(foreach exec,$(EXECUTABLES),\
$(if $(shell which $(exec)),some string,$(error "No $(exec) in PATH")))
Note the use of the := assignment operator that is required in order to force immediate evaluation of the RHS expression. If your Makefile changes the PATH, then instead of the last li...
Use jQuery to change an HTML tag?
...t;, [withDataAndEvents], [withDataAndEvents])
Arguments:
tagName: String
The tag name e.g. "div", "span", etc.
withDataAndEvents: Boolean
"A Boolean indicating whether event handlers should be copied along with the elements. As of jQuery 1.4, element data will be copied as we...
How to insert an element after another element in JavaScript without using a library?
... of the element such as events because outerHTML converts the element to a string. We need it because insertAdjacentHTML adds content from strings rather than elements.
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Executing multiple commands from a Windows cmd script
...e call for it as in call mvn install; normally you don't need to create an extra cmd file.
– jfpoilpret
Sep 13 '12 at 8:17
2
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Is there a way to pass jvm args via command line to maven? [duplicate]
..._OPTS="-Xms256m -Xmx512m". This environment variable can be used to supply extra options to Maven.
In Win, you need to set environment variable via the dialogue box
Add ... environment variable by opening up the system properties (WinKey + Pause),... In the same dialog, add the MAVEN_OPTS env...