大约有 7,900 项符合查询结果（耗时：0.0275秒） [XML]
How do I find numeric columns in Pandas?
... to as many numpy methods as possible. This is due to pandas dynamism. The API changes frequently. For undocumented methods it's just plain reckless, no matter how useful it is.
– mik
Aug 21 '19 at 12:42
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Java 256-bit AES Password-Based Encryption
...(ciphertext), "UTF-8");
System.out.println(plaintext);
Java 7 included API support for AEAD cipher modes, and the "SunJCE" provider included with OpenJDK and Oracle distributions implements these beginning with Java 8. One of these modes is strongly recommended in place of CBC; it will protect t...
Use of Java's Collections.singletonList()?
... various "singleton" methods to be useful for passing a single value to an API that requires a collection of that value. Of course, this works best when the code processing the passed-in value does not need to add to the collection.
...
Disable button in jQuery
... $(this).prop("disabled",true);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<button class="rbutton">Click me</button>
http://jsfiddle.net/mblase75/2Nfu4/
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JavaScript: Overriding alert()
...ore (at best).
You should be a good citizen and avoid touching the native API. If you do, you could break things up, when using 3rd party code.
Yet, if you want to redefine the alert behaviour in a specific context, you could enclose it with an anonymous function, like this:
/* new funky alert */...
Print JSON parsed object?
...le in FF8+, Opera, Chrome and Safari: developer.mozilla.org/en-US/docs/Web/API/console.dir
– olibre
Nov 14 '13 at 13:53
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how to break the _.each function in underscore.js
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** Old **
If you want to conditionally break out of a loop, use _.filter api instead of _.each. Here is a code snippet
var searchArr = [{id:1,text:"foo"},{id:2,text:"bar"}];
var filteredEl = _.filter(searchArr,function(arrEl){
if(arrEl.id === 1 ){
return a...
Double decimal formatting in Java
...i. Have a look at NumberFormat javadoc : docs.oracle.com/javase/1.4.2/docs/api/java/text/…
– Michael Zilbermann
Oct 9 '12 at 18:54
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Stop Visual Studio from launching a new browser window when starting debug?
...
Updated answer for a .NET Core Web Api project...
Right-click on your project, select "Properties," go to "Debug" and untick the "Launch browser" checkbox (enabled by default).
shar...
How to programmatically clear application data
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From API version 19 it is possible to call ActivityManager.clearApplicationUserData().
((ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE)).clearApplicationUserData();
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