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Sort JavaScript object by key
...er answers to this question are outdated, never matched implementation reality, and have officially become incorrect now that the ES6/ES2015 spec has been published.
See the section on property iteration order in Exploring ES6 by Axel Rauschmayer:
All methods that iterate over property keys d...
Why use String.Format? [duplicate]
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I can see a number of reasons:
Readability
string s = string.Format("Hey, {0} it is the {1}st day of {2}. I feel {3}!", _name, _day, _month, _feeling);
vs:
string s = "Hey," + _name + " it is the " + _day + "st day of " + _month + ". I feel " + feeling + "!"...
What's the difference between backtracking and depth first search?
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Backtracking is a more general purpose algorithm.
Depth-First search is a specific form of backtracking related to searching tree structures. From Wikipedia:
One starts at the root (selecting some node as the root in the graph case) and explores as far as possibl...
how do I use the grep --include option for multiple file types?
... from expanding '' which at the same time stop shell to expand {html,php}. It seems that equal sign in --include=* is able to prevent shell from expanding '*'.
– tianyapiaozi
May 17 '12 at 4:53
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Credit card expiration dates - Inclusive or exclusive?
Say you've got a credit card number with an expiration date of 05/08 - i.e. May 2008.
10 Answers
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SQL error “ORA-01722: invalid number”
... string into a number, and the string cannot be converted into a number.
Without seeing your table definition, it looks like you're trying to convert the numeric sequence at the end of your values list to a number, and the spaces that delimit it are throwing this error. But based on the informatio...
What is the purpose of Order By 1 in SQL select statement?
...ough some old code at work, and have noticed that there are several views with an order by 1 clause. What does this accomplish?
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How to get the source directory of a Bash script from within the script itself?
... which will give you the full directory name of the script no matter where it is being called from.
It will work as long as the last component of the path used to find the script is not a symlink (directory links are OK). If you also want to resolve any links to the script itself, you need a multi-...
How do I check that a number is float or integer?
... n && n % 1 !== 0;
}
Update 2019
5 years after this answer was written, a solution was standardized in ECMA Script 2015. That solution is covered in this answer.
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How to use if-else option in JSTL
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Yes, but it's clunky as hell, e.g.
<c:choose>
<c:when test="${condition1}">
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</c:when>
<c:when test="${condition2}">
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</c:when>
<c:otherwise>
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</c:otherwise>
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