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How can I convert the “arguments” object to an array in JavaScript?
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ES6 using rest parameters
If you are able to use ES6 you can use:
Rest Parameters
function sortArgs(...args) {
return args.sort(function (a, b) { return a - b; });
}
document.body.innerHTML = sortArgs(12, 4, 6, 8).toString();
As yo...
Why is Cache-Control attribute sent in request header (client to server)?
...o server) to force validation of the resource in the intermediate proxies.
If the client doesn't send this request to the server, intermediate proxies will return a copy of the content if it is fresh (has not expired according to Expire or max-age fields). Cache-Control directs these proxies to reva...
All possible array initialization syntaxes
...to satisfy the compiler's demands. The fourth could also use inference. So if you're into the whole brevity thing, the above could be written as
var array = new string[2]; // creates array of length 2, default values
var array = new string[] { "A", "B" }; // creates populated array of length 2
stri...
What are the performance characteristics of sqlite with very large database files? [closed]
...e supported (there used to be a comment on the sqlite website stating that if you need file sizes above 1GB you may want to consider using an enterprise rdbms. Can't find it anymore, might be related to an older version of sqlite).
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MySQL query String contains
...ve been trying to figure out how I can make a query with MySQL that checks if the value (string $haystack ) in a certain column contains certain data (string $needle ), like this:
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How to track untracked content?
...independent Git repository. Usually such sub-repositories are ignored, but if you tell git add to explicitly add it, then it will create an gitlink entry that points to the sub-repository’s HEAD commit instead of adding the contents of the directory. It might be nice if git add would refuse to cre...
Checking if a key exists in a JS object
...ust an object.
You can use the hasOwnProperty method to check for a key:
if (obj.hasOwnProperty("key1")) {
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}
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What's the best way to check if a String represents an integer in Java?
I normally use the following idiom to check if a String can be converted to an integer.
38 Answers
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Correct way to write line to file?
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@HorseSMith: I see. Hopefully my most recent edit clarifies my intent. Feel free to edit my answers if they are "rather useless and misleading".
– Johnsyweb
Dec 3 '14 at 9:57
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Why sizeof int is wrong, while sizeof(int) is right?
...n imagine why it didn't bother. With the language as it stands, a type specifier never appears "naked" in an expression, and so there is no need for rules to resolve whether that second * is part of the type or an arithmetic operator.
The existing grammar does already resolve the potential ambiguit...