大约有 41,000 项符合查询结果（耗时：0.0688秒） [XML]
Nullable ToString()
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You are quite correct. Also in this question, the former solution is suggested while nobody actually notices ToString() already gives the correct answer.
Maybe the argument for the more verbose solution is readability: When you call ToStri...
How to get current foreground activity context in android?
Whenever my broadcast is executed I want to show alert to foreground activity.
14 Answers
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App restarts rather than resumes
...omeone can help me figure out, if not a solution, at least an explanation for a behaviour.
9 Answers
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JavaScript Date Object Comparison
...m to number:
alert( +startDate2 == +startDate3 ); // true
If you want a more explicity conversion to number, use either:
alert( startDate2.getTime() == startDate3.getTime() ); // true
or
alert( Number(startDate2) == Number(startDate3) ); // true
Oh, a reference to the spec: §11.9.3 The Abstra...
javascript remove “disabled” attribute from html input
...y, the equivalent would be:
$('#my-input-id').prop('disabled', false);
For several input fields, you may access them by class instead:
var inputs = document.getElementsByClassName('my-input-class');
for(var i = 0; i < inputs.length; i++) {
inputs[i].disabled = false;
}
Where document co...
How to save/restore serializable object to/from file?
...bjects and I need to save that somewhere in my computer. I have read some forums and I know that the object has to be Serializable . But it would be nice if I can get an example. For example if I have the following:
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What are the differences between double-dot “..” and triple-dot “…” in Git diff commit ranges?
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Since I'd already created these images, I thought it might be worth using them in another answer, although the description of the difference between .. (dot-dot) and ... (dot-dot-dot) is essentially the same as in manojlds's answer.
The command git diff typically¹ only shows you the dif...
How to properly add cross-site request forgery (CSRF) token using PHP
I am trying to add some security to the forms on my website. One of the forms uses AJAX and the other is a straightforward "contact us" form. I'm trying to add a CSRF token. The problem I'm having is that the token is only showing up in the HTML "value" some of the time. The rest of the time, the va...
Batch not-equal (inequality) operator
According to this , !==! is the not-equal string operator.
Trying it, I get:
5 Answers
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Go Unpacking Array As Arguments
So in Python and Ruby there is the splat operator (*) for unpacking an array as arguments. In Javascript there is the .apply() function. Is there a way of unpacking an array/slice as function arguments in Go? Any resources for this would be great as well!
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