大约有 47,000 项符合查询结果（耗时：0.0708秒） [XML]
How to auto-reload files in Node.js?
...emon:
Monitor for any changes in your node.js application and automatically restart the server - perfect for development
To use nodemon:
$ npm install nodemon -g
$ nodemon app.js
share
|
imp...
How to get a microtime in Node.js?
...
All of the top answers are wrong. process.hrtime() does not return the current time.
– user2609094
Jul 28 '17 at 7:43
...
How do I detect if software keyboard is visible on Android Device or not?
...
This works for me. Maybe this is always the best way for all versions.
It would be effective to make a property of keyboard visibility and observe this changes delayed because the onGlobalLayout method calls many times. Also it is good to check the device rotation and windowSoftIn...
如何选择机器学习算法 - 大数据 & AI - 清泛网移动版 - 专注C/C++及内核技术
...g algorithm to choose for your classification problem? Of course, if you really care about accuracy, your best bet is to test out a couple different ones (making sure to try different parameters within each algorithm as well), and select the best one by cross-validation. But if you’re simply l...
Run JavaScript code on window close or page refresh?
...ntListener("beforeunload", function(e){
// Do something
}, false);
Usually, onbeforeunload is used if you need to stop the user from leaving the page (ex. the user is working on some unsaved data, so he/she should save before leaving). onunload isn't supported by Opera, as far as I know, but yo...
iOS5 Storyboard error: Storyboards are unavailable on iOS 4.3 and prior
I've built a small app using storyboards and it ran great. Just before final testing I decided to try it out to see if it runs on iOS 4.3. I clicked on the gray 5.0 in the project settings and selected 4.3.
...
SVN upgrade working copy
...ion client to at least 1.7.
With the command line client, you have to manually upgrade your working copy format by issuing the command svn upgrade:
Upgrading the Working Copy
Subversion 1.7 introduces substantial changes to the working copy
format. In previous releases of Subversion, Sub...
How can I get a collection of keys in a JavaScript dictionary? [duplicate]
...
To loop through the "dictionary" (we call it object in JavaScript), use a for in loop:
for(var key in driversCounter) {
if(driversCounter.hasOwnProperty(key)) {
// key = keys, left of the ":"
// driversCounter[key] = value, ri...
How can I check whether an array is null / empty?
....println("array is empty");
}
An alternative definition of "empty" is if all the elements are null:
Object arr[] = new Object[10];
boolean empty = true;
for (int i=0; i<arr.length; i++) {
if (arr[i] != null) {
empty = false;
break;
}
}
or
Object arr[] = new Object[10];
boolean e...
How can I convert a DateTime to the number of seconds since 1970?
...he number of seconds since Jan 1st, 1970. It looks like a DateTime is actually implemented as the number of 'ticks' since Jan 1st, 0001.
...