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How do I parse JSON with Ruby on Rails? [duplicate]
..., see it's a String and try decoding it.
Similarly, if you have a hash or array you want serialized, use:
JSON[array_of_values]
Or:
JSON[hash_of_values]
And JSON will serialize it. You can also use the to_json method if you want to avoid the visual similarity of the [] method.
Here are some...
Use JNI instead of JNA to call native code?
...some situations will perform worse than with JNI. For example when passing arrays, JNA will convert these from Java to native at the beginning of each function call and back at the end of the function call. With JNI, you can control yourself when a native "view" of the array is generated, potentiall...
Should functions return null or an empty object?
...
If your return type is an array then return an empty array otherwise return null.
share
answered Oct 26 '0...
(![]+[])[+[]]… Explain why this works
...rand of the Addition operator is ![] and it will produce false, because an array object—as any other Object instance—is truthy, and applying the Logical (!) NOT unary operator, it produces the value false, for example.
![]; // false, it was truthy
!{}; // false, it was truthy
!0; // true, it w...
In Python, how do I index a list with another list?
...xtended slicing like that:
>>> import numpy
>>> a=numpy.array(['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h'])
>>> Idx = [0, 3, 7]
>>> a[Idx]
array(['a', 'd', 'h'],
dtype='|S1')
...and is probably much faster (if performance is enough of a concern to to bother ...
Detecting if an NSString contains…?
...
how can i get the locations when i use this method on an array?
– judge
Mar 9 '14 at 22:25
Depends w...
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...。
这些措施已初见成效。窝窝2014年Q4财报显示，其平台使用费收入占比已经超过50%。
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餐饮行业本就是一个流量中心，也是线下最大的数据中心和社交中心，可以说餐饮行业就是一...
SVG get text element width
...
var character = "";
var string = "array = [";
for(var i=0; i<127; i++) {
character = String.fromCharCode(i);
div.innerHTML = character;
document.body.appendChild(div);
...
Best implementation for hashCode method for a collection
...he result of the hashCode() method or 0 if f == null;
If the field f is an array: see every field as separate element and calculate the hash value in a recursive fashion and combine the values as described next.
Combine the hash value c with result:
result = 37 * result + c
Return result
This s...
How to print matched regex pattern using awk?
...result except of print it? For example, i want to add all the matches into array.
– Evya2005
Jun 4 '17 at 9:41
...