大约有 15,600 项符合查询结果（耗时：0.0185秒） [XML]
What's the difference between a Future and a Promise?
...;
})
...
.then(function(result){
console.log(result);
})
.catch(function(error){
console.log(error);
})
which makes asynchronous computation to look like synchronous:
try {
op1Result = syncOp1();
// do something
op1Result = syncOp2();
// do something more
op3Result = syncOp3();
//...
Excel “External table is not in the expected format.”
...code shown below. I get an "External table is not in the expected format." error unless I have the file already open in Excel. In other words, I have to open the file in Excel first before I can read if from my C# program. The xlsx file is on a share on our network. How can I read the file without h...
Python unit test with base and sub class
...I think the setUpClass method below is the best and is less prone to human error. Either that or wrapping the BaseTest class in a container class which is a bit more hacky but avoids the skip message in the test run printout.
– David Sanders
Oct 17 '14 at 16:2...
How to normalize a NumPy array to within a certain range?
...erently. E.g. interpolate the value, replacing in with e.g. 0, or raise an error.
Finally, worth mentioning even if it's not OP's question, standardization:
e = (a - np.mean(a)) / np.std(a)
share
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Lambda capture as const reference?
...eference: [&foo = this->foo] inside of a const function gives me an error stating that the capture itself discards qualifiers. This could be a bug in GCC 5.1, though, I suppose.
– Kyle Strand
Apr 28 '16 at 1:01
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How do I specify the Linq OrderBy argument dynamically?
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When I try this I get the error: LINQ to Entities does not recognize the method 'System.Object GetValue(System.Object, System.Object[])' method, and this method cannot be translated into a store expression. Does this answer only apply to Linq To SQL?
...
How can I replace every occurrence of a String in a file with PowerShell?
...
Thanks - I get an error "replace : Method invocation failed because [System.Object[]] doesn't contain a method named 'replace'." though?
– amateur
Jun 17 '13 at 9:42
...
Django Passing Custom Form Parameters to Formset
...
It's not working for me. I get the error: AttributeError: '_curriedFormSet' object has no attribute 'get'
– Paolo Bergantino
Mar 9 '09 at 0:35
...
When is null or undefined used in JavaScript? [duplicate]
... // false
z.xyz === undefined // true
null = 1; // throws error: invalid left hand assignment
undefined = 1; // works fine: this can cause some problems
So this is definitely one of the more subtle nuances of JavaScript. As you can see, you can override the value of undefine...
Official way to ask jQuery wait for all images to load before executing something
...
* the specified callback function, only when all of them are loaded (or errored).
* @author: H. Yankov (hristo.yankov at gmail dot com)
* @version: 1.0.0 (Feb/22/2010)
* http://yankov.us
*/
(function($) {
$.fn.batchImageLoad = function(options) {
var images = $(this);
var origina...