大约有 40,000 项符合查询结果（耗时：0.0440秒） [XML]
How to remove a field completely from a MongoDB document?
...first document it finds that matches. See this for updated documentation:
https://docs.mongodb.com/manual/reference/operator/update/unset/
Example:
db.example.update({}, {$unset: {words:1}} , {multi: true});
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Twitter Bootstrap - how to center elements horizontally or vertically
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Demo Bootstrap 4 Horizontal Centering
For vertical centering in BS4 see https://stackoverflow.com/a/41464397/171456
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How to split a long regular expression into multiple lines in JavaScript?
... of the RegExp object.
Example:
var urlRegex= new RegExp(''
+ /(?:(?:(https?|ftp):)?\/\/)/.source // protocol
+ /(?:([^:\n\r]+):([^@\n\r]+)@)?/.source // user:pass
+ /(?:(?:www\.)?([^\/\n\r]+))/.source // domain
+ /(\/[^?\n\r]+)?/.source // request
+ /(\?[^#\n\r...
Rails layouts per action?
..._action [:new, :create] => "some_layout", :index => "other_layout"
https://github.com/barelyknown/layout_by_action
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Most efficient method to groupby on an array of objects
...t; [{type:"Cat", name:"Tiger"}, {type:"Cat", name:"Leo"}]
About Map:
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map
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JavaFX Application Icon
...new Image("/path/to/javaicon.png"));
OR
stage.getIcons().add(new Image("https://example.com/javaicon.png"));
Hope it helps. Thanks!!
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How do you convert a DataTable into a generic list?
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I have added some modification to the code from this answer (https://stackoverflow.com/a/24588210/4489664) because for nullable Types it will return exception
public static List<T> DataTableToList<T>(this DataTable table) where T: new()
{
List<T> list = new List...
Bootstrap table without stripe / borders
...: Since Bootstrap 4.1 you can use .table-borderless to remove the border.
https://getbootstrap.com/docs/4.1/content/tables/#borderless-table
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width:auto for fields
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
How can I parse JSON with C#?
...ew WebClient();
dynamic result = JsonValue.Parse(webClient.DownloadString("https://api.foursquare.com/v2/users/self?oauth_token=XXXXXXX"));
Console.WriteLine(result.response.user.firstName);
That last Console.WriteLine is pretty sweet...
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