大约有 300 项符合查询结果(耗时:0.0075秒) [XML]

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Adding two numbers concatenates them instead of calculating the sum

... They are actually strings, not numbers. The easiest way to produce a number from a string is to prepend it with +: var x = +y + +z; share | improve this answer ...
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How to use SharedPreferences in Android to store, fetch and edit values [closed]

... String dateTimeKey = "com.example.app.datetime"; // use a default value using new Date() long l = prefs.getLong(dateTimeKey, new Date().getTime()); To edit and save preferences Date dt = getSomeDate(); prefs.edit().putLong(dateTimeKey, dt.getTime()).apply(); The android sdk's sample director...
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Find a value in an array of objects in Javascript [duplicate]

I know similar questions have been asked before, but this one is a little different. I have an array of unnamed objects, which contain an array of named objects, and I need to get the object where "name" is "string 1". Here is an example array. ...
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Replace console output in Python

... Slightly more sophisticated is a progress bar... this is something I am using: def startProgress(title): global progress_x sys.stdout.write(title + ": [" + "-"*40 + "]" + chr(8)*41) sys.stdout.flush() progress_x = 0 def progress(x): global progress_x x = int(x * 40 // 100...
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Displaying files (e.g. images) stored in Google Drive on a website

I was wondering if its possible to access/display files like images which are stored in Google Drive on a public website. 2...
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Android Webview - Completely Clear the Cache

...code will keep retrying in an infinite loop. I rewrote it to be truly recursive, and added a numDays parameter so you can control how old the files must be that are pruned: //helper method for clearCache() , recursive //returns number of deleted files static int clearCacheFolder(final File dir, fin...
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CSS background opacity with rgba not working in IE 8

I am using this CSS for background opacity of a <div> : 15 Answers 15 ...
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How can I add a custom HTTP header to ajax request with js or jQuery?

Does anyone know how to add or create a custom HTTP header using JavaScript or jQuery? 9 Answers ...
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Passing a single item as IEnumerable

Is there a common way to pass a single item of type T to a method which expects an IEnumerable<T> parameter? Language is C#, framework version 2.0. ...
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Reusable library to get human readable version of file size?

...nippets on the web that would give you a function to return human readable size from bytes size: 22 Answers ...