大约有 48,000 项符合查询结果（耗时：0.0671秒） [XML]
Retrieve only the queried element in an object array in MongoDB collection
...d shapes element:
db.test.find(
{"shapes.color": "red"},
{_id: 0, shapes: {$elemMatch: {color: "red"}}});
Returns:
{"shapes" : [{"shape": "circle", "color": "red"}]}
In 2.2 you can also do this using the $ projection operator, where the $ in a projection object field name represents...
Custom fonts in iOS 7
... file. Add "Fonts provided by application" key into your plist and in Item 0 copy the exact filename of the font you copied to your Supporting files WITH extension. For example: "JosefinSansStd-Light_0.otf"
Make sure that the font you imported to your app is being packed into app itself. Do that by ...
Java: function for arrays like PHP's join()?
...
307
Starting from Java8 it is possible to use String.join().
String.join(", ", new String[]{"Hello...
Remove leading zeros from a number in Javascript [duplicate]
...
We can use four methods for this conversion
parseInt with radix 10
Number Constructor
Unary Plus Operator
Using mathematical functions (subtraction)
const numString = "065";
//parseInt with radix=10
let number = parseInt(numString, 10);
console.log(number);
// Number construc...
Why is `replace` property deprecated in AngularJS directives? [duplicate]
...e fixed.
https://github.com/angular/angular.js/commit/eec6394a342fb92fba5270eee11c83f1d895e9fb#commitcomment-8124407
ORIGINAL
Here is the commit of this change:
https://github.com/angular/angular.js/commit/eec6394a342fb92fba5270eee11c83f1d895e9fb
The replace flag for defining directives that r...
What is the http-header “X-XSS-Protection”?
...d with HTTP for fun in telnet now (i.e. just typing in telnet google.com 80 and putting in random GETs and POSTs with different headers and the like) but I've come across something that google.com transmits in it's headers that I don't know.
...
Get all directories within directory nodejs
....map(name => join(source, name)).filter(isDirectory)
Update for Node 10.10.0+
We can use the new withFileTypes option of readdirSync to skip the extra lstatSync call:
const { readdirSync } = require('fs')
const getDirectories = source =>
readdirSync(source, { withFileTypes: true })
...
A generic list of anonymous class
In C# 3.0 you can create anonymous class with the following syntax
22 Answers
22
...
How can I undo git reset --hard HEAD~1?
...ted initial commit 1a75c1d: added file1
1 files changed, 1 insertions(+), 0 deletions(-)
create mode 100644 file1
$ echo "added new file" > file2
$ git add file2
$ git commit -m 'added file2'
Created commit f6e5064: added file2
1 files changed, 1 insertions(+), 0 deletions(-)
create mode 100...
MySQL offset infinite rows
...ows from the 96th row
to the last:
SELECT * FROM tbl LIMIT 95, 18446744073709551615;
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