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Where IN clause in LINQ [duplicate]
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this will compare string values, but what about ids??
– Jitendra Pancholi
Feb 22 '13 at 7:32
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Get time difference between two dates in seconds
...act them and divide by 1000 (since it's originally in milliseconds). As an extra, when you're calling the getDate() method, you're in fact getting the day of the month as an integer between 1 and 31 (not zero based) as opposed to the epoch time you'd get from calling the getTime() method, representi...
Get loop counter/index using for…of syntax in JavaScript
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@klewis: %d formats an integer and %s formats a string. They’re based on printf. A spec is in progress at console.spec.whatwg.org/#formatter.
– Ry-♦
Aug 7 '19 at 13:39
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Test for existence of nested JavaScript object key
...y property keys change (they will), all devs on the project would have to 'string search' the entire codebase. This isn't really a solution to the problem, as it introduces a much bigger problem
– Drenai
Jan 14 '18 at 11:20
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if (key in object) or if(object.hasOwnProperty(key)
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@Lor: ({foo:"bar"}).hasOwnProperty("toString") vs "toString" in ({foo:"bar"})
– I Hate Lazy
Nov 29 '12 at 19:24
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Comma separator for numbers in R?
... comment:
Be aware that these have the side effect of padding the printed strings with blank space, for example:
> prettyNum(c(123,1234),big.mark=",")
[1] " 123" "1,234"
Add trim=TRUE to format or preserve.width="none" to prettyNum to prevent this:
> prettyNum(c(123,1234),big.mark=",", ...
What is the “__v” field in Mongoose
...n_key, you can just:
var UserSchema = new mongoose.Schema({
nickname: String,
reg_time: {type: Date, default: Date.now}
}, {
versionKey: false // You should be aware of the outcome after set to false
});
Setting the versionKey to false means the document is no longer versioned.
This...
Reducing MongoDB database file size
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UPDATE: with the compact command and WiredTiger it looks like the extra disk space will actually be released to the OS.
UPDATE: as of v1.9+ there is a compact command.
This command will perform a compaction "in-line". It will still need some extra space, but not as much.
MongoDB comp...
Difference between \w and \b regular expression meta characters
...tions that qualify as word boundaries:
Before the first character in the string, if the first character is
a word character.
After the last character in the string, if the
last character is a word character.
Between two characters in the
string, where one is a word character and the other is not a...
Databinding an enum property to a ComboBox in WPF
...ption = GetDescription(enumValue)
}).ToArray();
}
private string GetDescription(object enumValue)
{
var descriptionAttribute = EnumType
.GetField(enumValue.ToString())
.GetCustomAttributes(typeof (DescriptionAttribute), false)
.FirstOrDefault() as D...