大约有 44,400 项符合查询结果（耗时：0.0483秒） [XML]
How to make an app's background image repeat
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edited Mar 15 '14 at 15:20
Michael
3,49044 gold badges2626 silver badges4141 bronze badges
answered Ap...
Merging dictionaries in C#
What's the best way to merge 2 or more dictionaries ( Dictionary<T1,T2> ) in C#?
(3.0 features like LINQ are fine).
2...
Get loop counter/index using for…of syntax in JavaScript
...both the value and the index to the function you give it:
var myArray = [123, 15, 187, 32];
myArray.forEach(function (value, i) {
console.log('%d: %s', i, value);
});
// Outputs:
// 0: 123
// 1: 15
// 2: 187
// 3: 32
Or ES6’s Array.prototype.entries, which now has support across current b...
How to get JSON from URL in JavaScript?
...() function:
$.getJSON('http://query.yahooapis.com/v1/public/yql?q=select%20%2a%20from%20yahoo.finance.quotes%20WHERE%20symbol%3D%27WRC%27&format=json&diagnostics=true&env=store://datatables.org/alltableswithkeys&callback', function(data) {
// JSON result in `data` variable
});
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Git merge reports “Already up-to-date” though there is a difference
I have a git repository with 2 branches: master and test.
15 Answers
15
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Check if a Postgres JSON array contains a string
...as food
d(# where food::text = '"carrots"'
d(# );
Execution time: 3084.927 ms
d=# -- Postgres 9.4+ solution
d=# explain analyze select info->'name' from rabbits where (info->'food')::jsonb ? 'carrots';
Execution time: 1255.501 ms
d=# alter table rabbits alter info type jsonb using info::...
How do I get the first n characters of a string without checking the size or going out of bounds?
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Stephen CStephen C
603k8282 gold badges700700 silver badges10591059 bronze badges
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How to create a temporary directory/folder in Java?
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edited Sep 28 '18 at 20:58
GreenGiant
3,95611 gold badge3737 silver badges6767 bronze badges
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Properly escape a double quote in CSV
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293
Use 2 quotes:
"Samsung U600 24"""
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