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How to merge two arrays in JavaScript and de-duplicate items
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To just merge the arrays (without removing duplicates)
ES5 version use Array.concat:
var array1 = ["Vijendra", "Singh"];
var array2 = ["Singh", "Shakya"];
console.log(array1.concat(array2));
ES6 version use destructuring
const array1 = ["Vij...
C++ include and import difference
... Curious, I wasn't aware of that. Perhaps I should have said it's a COM- and .NET-specific thing instead.
– Head Geek
Oct 5 '08 at 17:08
25
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How can I check whether a radio button is selected with JavaScript?
I have two radio buttons within an HTML form. A dialog box appears when one of the fields is null. How can I check whether a radio button is selected?
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Code block in numbered list (Wiki syntax)
...diaWiki (wikipedia's) wiki syntax, is there a way to have a numbered list with a code block in the middle?
7 Answers
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Replacing a char at a given index in string? [duplicate]
String does not have ReplaceAt() , and I'm tumbling a bit on how to make a decent function that does what I need. I suppose the CPU cost is high, but the string sizes are small so it's all ok
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Shortcut to exit scale mode in VirtualBox [closed]
What is the shortcut to exit scale mode in Oracle VirtualBox, Windows 7 host?
9 Answers
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Insert a string at a specific index
...ubStr The String that is spliced in.
* @return {string} A new string with the spliced substring.
*/
String.prototype.splice = function(start, delCount, newSubStr) {
return this.slice(0, start) + newSubStr + this.slice(start + Math.abs(delCount));
};
}
Example
String....
Fade In Fade Out Android Animation in Java
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edited Feb 27 '19 at 5:01
LeonardoSibela
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do N times (declarative syntax)
Is there a way in Javascript to write something like this easily:
22 Answers
22
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How to define @Value as optional
...character. Your example was @Value("${myValue:DEFAULT}").
You are not limited to plain strings as default values. You can use SPEL expressions, and a simple SPEL expression to return null is:
@Value("${myValue:#{null}}")
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