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What is “lifting” in Scala?
...ethod into a function by applying the underscore
scala> val f = times2 _
f: Int => Int = <function1>
scala> f(4)
res0: Int = 8
Note the fundamental difference between methods and functions. res0 is an instance (i.e. it is a value) of the (function) type (Int => Int)
Functors
...
How to move all files including hidden files into parent directory via *
...ould cause mv below to match hidden files
mv /path/subfolder/* /path/
In order to turn off dotglob, you'd need to say:
shopt -u dotglob
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Using node.js as a simple web server
... Explorer
reg.exe add HKCR\Directory\shell\LightServer\command /ve /t REG_EXPAND_SZ /f /d "\"C:\nodejs\light-server.cmd\" \"-o\" \"-s\" \"%V\""
Simple JSON REST server
If you need to create a simple REST server for a prototype project then json-server might be what you're looking for.
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How to avoid 'cannot read property of undefined' errors?
...tive "in", but allows paths.
var testObject = {a: {b: {c: 'walrus'}}};
if(_.has(testObject, 'a.b.c')) {
//Safely access your walrus here
}
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Conversion of a datetime2 data type to a datetime data type results out-of-range value
...Type object for the DataColumn constructor is the typeof keyword, which is orders of magnitude faster.
Therefore, to create the column, you should write
new DataColumn("myDate", typeof(DateTime))
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Form onSubmit determine which submit button was pressed [duplicate]
...the browser will
// automatically choose the first in source-order
// so we do the same here
submitActor = $submitActors[0];
}
console.log(submitActor.name);
// alert(submitActor.name);
return false;
});
...
What happened to “HelveticaNeue-Italic” on iOS 7.0.3
...f (font == nil && ([UIFontDescriptor class] != nil)) {
font = (__bridge_transfer UIFont*)CTFontCreateWithName(CFSTR("HelveticaNeue-Italic"), size, NULL);
}
It is also worth noting that in the current version of Xcode (5.0.1 (5A2053)) this font is not listed as an option in the Font dro...
Convert form data to JavaScript object with jQuery
...nction(){
var self = this,
json = {},
push_counters = {},
patterns = {
"validate": /^[a-zA-Z][a-zA-Z0-9_]*(?:\[(?:\d*|[a-zA-Z0-9_]+)\])*$/,
"key": /[a-zA-Z0-9_]+|(?=\[\])/g,
"push": /^$/,
...
Why does sudo change the PATH?
... Don't alias sudo; see answer from @Jacob about Defaults env_reset.
– greg_1_anderson
Aug 19 '12 at 18:35
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Create ArrayList from array
... very nice that many times you have to know the concrete implementation in order to use a collection - this was a pragmatic design choice in order to keep the framework simple.
– lbalazscs
Feb 22 '13 at 9:41
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