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Javascript reduce on array of objects
...tion your're returning a number and then trying to get property x of it to add to the next object which is undefined and maths involving undefined results in NaN.
try returning an object contain an x property with the sum of the x properties of the parameters:
var arr = [{x:1},{x:2},{x:4}];
arr....
Unexpected character encountered while parsing value
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MrBoJangles
11.3k1616 gold badges6060 silver badges7777 bronze badges
answered Apr 24 '14 at 3:23
Alexei LevenkovAlexei Levenkov
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“query function not defined for Select2 undefined error”
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Covered in this google group thread
The problem was because of the extra div that was being added by the select2. Select2 had added new div with class "select2-container form-select" to wrap the select created. So the next time i loaded the function, the...
select * vs select column
If I just need 2/3 columns and I query SELECT * instead of providing those columns in select query, is there any performance degradation regarding more/less I/O or memory?
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ERROR 1130 (HY000): Host '' is not allowed to connect to this MySQL server [duplicate]
...oot account, and this statement applies to any account, may only have been added with localhost access (which is recommended).
You can check this with:
SELECT host FROM mysql.user WHERE User = 'root';
If you only see results with localhost and 127.0.0.1, you cannot connect from an external sourc...
SVN needs-lock 设置强制只读属性（官方资料） - 更多技术 - 清泛网 - 专注...
...owing three measures
forces users to use property svn:needs-lock on newly added binary files. Denies commits when the property is not available
sets the svn:needs-lock property on all already existing binary files in repositories
configures users to automatically set property svn:needs-lock...
Git error on commit after merge - fatal: cannot do a partial commit during a merge
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I found that adding "-i" to the commit command fixes this problem for me. The -i basically tells it to stage additional files before committing.
That is:
git commit -i myfile.php
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Circle-Rectangle collision detection (intersection)
...something like the following will work, where the circle has centre P and radius R, and the rectangle has vertices A, B, C, D in that order (not complete code):
def intersect(Circle(P, R), Rectangle(A, B, C, D)):
S = Circle(P, R)
return (pointInRectangle(P, Rectangle(A, B, C, D)) or
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Sending event when AngularJS finished loading
Wondered what's the best way to detect the finish of page loading/bootstrapping, when all directives done compiling/linking.
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How to hide the “back” button in UINavigationController?
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Muhammed Irfan
1,4601111 silver badges2525 bronze badges
answered Sep 21 '09 at 9:53
Zoran SimicZoran Simic
9,9...