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What's the difference between assignment operator and copy constructor?
...the difference between assignment constructor and copy constructor in C++. It is like this:
8 Answers
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How to check if a variable is a dictionary in Python?
...for ele in d.values():
if isinstance(ele,dict):
for k, v in ele.items():
print(k,' ',v)
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Difference in make_shared and normal shared_ptr in C++
...wo.
Where do the heap-allocations happen?
std::shared_ptr manages two entities:
the control block (stores meta data such as ref-counts, type-erased deleter, etc)
the object being managed
std::make_shared performs a single heap-allocation accounting for the space necessary for both the control ...
Javascript: get package.json data in gulpfile.js
...ic question per-se, but how would one get info from the package.json file within the gulpfile.js; For instance, I want to get the homepage or the name and use it in a task.
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How to push both value and key into PHP array
...e1' => $value1, 'indexname2' => $value2); would set them as the only items in $arrayname. If you already have $arrayname set and want to keep its values, try $arrayname += $anotherarray. Keep in mind any existing keys in the first array would be overwritten by the second.
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Setting default value for TypeScript object passed as argument
...llowing code works in TypeScript 1.5:
function sayName({ first, last = 'Smith' }: {first: string; last?: string }): void {
const name = first + ' ' + last;
console.log(name);
}
sayName({ first: 'Bob' });
The trick is to first put in brackets what keys you want to pick from the argument objec...
How to start new activity on button click
In an Android application, how do you start a new activity (GUI) when a button in another activity is clicked, and how do you pass data between these two activities?
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How to cancel/abort jQuery AJAX request?
...process the request even if we abort the request but the client will not wait for/handle the response.
The xhr object also contains a readyState which contains the state of the request(UNSENT-0, OPENED-1, HEADERS_RECEIVED-2, LOADING-3 and DONE-4). we can use this to check whether the previous reque...
Should have subtitle controller already set Mediaplayer error Android
Whenever I play a media, it shows a warning in DDMS Should have subtitle controller already set
3 Answers
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Import Error: No module named numpy
... have only one version of Python 3 installed on my Windows 7 ( sorry ) 64-bit system.
24 Answers
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