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Check if object value exists within a Javascript array of objects and if not add a new object to arr
If I have the following array of objects:
18 Answers
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Initial size for the ArrayList
You can set the initial size for an ArrayList by doing
15 Answers
15
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How to resolve “must be an instance of string, string given” prior to PHP 7?
...r to PHP 7 type hinting can only be used to force the types of objects and arrays. Scalar types are not type-hintable. In this case an object of the class string is expected, but you're giving it a (scalar) string. The error message may be funny, but it's not supposed to work to begin with. Given th...
Calling Java varargs method with single null argument?
...s supposed to be. It could be a null Object, or it could be a null Object array. For a single argument it assumes the latter.
You have two choices. Cast the null explicitly to Object or call the method using a strongly typed variable. See the example below:
public class Temp{
public static ...
Getting the first character of a string with $str[0]
...e whether this is 'good practice', as that notation is generally used with arrays. This feature doesn't seem to be very well documented so I'm turning to you guys to tell me if it's all right – in all respects – to use this notation?
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How to get all selected values from ?
... <select multiple="multiple"> elements, the .val() method returns an array containing each selected option;
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Clone Object without reference javascript [duplicate]
...code :
jQuery.extend = jQuery.fn.extend = function() {
var src, copyIsArray, copy, name, options, clone,
target = arguments[0] || {},
i = 1,
length = arguments.length,
deep = false;
// Handle a deep copy situation
if ( typeof target === "boolean" ) {
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Large Object Heap Fragmentation
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The CLR uses the LOH to preallocate a few objects (such as the array used for interned strings). Some of these are less than 85000 bytes and thus would not normally be allocated on the LOH.
It is an implementation detail, but I assume the reason for this is to avoid unnecessary garbage...
Find the most frequent number in a numpy vector
...ence/generated/numpy.bincount.html
and then probably use np.argmax:
a = np.array([1,2,3,1,2,1,1,1,3,2,2,1])
counts = np.bincount(a)
print(np.argmax(counts))
For a more complicated list (that perhaps contains negative numbers or non-integer values), you can use np.histogram in a similar way. Alterna...
How can I get enum possible values in a MySQL database?
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to convert the Type Value into an array using php I made like this: $segments = str_replace("'", "", $row[0]['Type']); $segments = str_replace("enum", "", $segments); $segments = str_replace("(", "", $segments); $segments = str_replace(")", "", $segments)...