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How would I skip optional arguments in a function call?
OK I totally forgot how to skip arguments in PHP.
19 Answers
19
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cannot download, $GOPATH not set
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[Update: as of Go 1.8, GOPATH defaults to $HOME/go, but you may still find this useful if you want to understand the GOPATH layout, customize it, etc.]
The official Go site discusses GOPATH and how to lay out a workspace directory.
export GOPATH="$HOME/your-workspace-...
How to specify JVM maximum heap size “-Xmx” for running an application with “run” action in SBT?
My application does large data arrays processing and needs more memory than JVM gives by default. I know in Java it's specified by "-Xmx" option. How do I set SBT up to use particular "-Xmx" value to run an application with "run" action?
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'Java' is not recognized as an internal or external command
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You need to configure your environment variables, JAVA_HOME and PATH.
JAVA_HOME must contain the path to java, and you should add %JAVA_HOME%\bin to PATH
Alternatively, you can simply add to your PATH the whole path to the bin folder, without the JAVA_HOME ...
Traversing text in Insert mode
...le in Insert Mode in Vim, is there any way to traverse the text moving some characters forward and backward other than using the arrow keys?
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How to create a file in memory for user to download, but not through server?
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This is not a cross browser solution but definitely something worth looking at. For example IE limits support to data uri. IE 8 limits size to 32KB and IE 7 and lower doesn't support at all.
– Darin Dimitrov
Sep 8 '10 at 6:32
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Python nested functions variable scoping [duplicate]
...error:
UnboundLocalError: local variable '_total' referenced before assignment
This problem is caused by this line:
_total += PRICE_RANGES[key][0]
The documentation about Scopes and Namespaces says this:
A special quirk of Python is that – if no global statement is in effect – assignm...
Git stash: “Cannot apply to a dirty working tree, please stage your changes”
...trying to apply changes I stashed earlier with git stash pop and get the message:
11 Answers
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JSON.NET Error Self referencing loop detected for type
... "$ref":"2"
},
"Id":2,
"Name":"Yogurt"
},
{
"$ref":"1"
}
],
"Id":1,
"Name":"Diary"
},
"Id":1,
"Name":"Whole Milk"
},
{
"$ref":"3"
}
]
The $...
'is' versus try cast with null check
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{
var myObjRef = (MyType)myObj.myProp; // needs to be cast a second time
// before using it as a MyType
...
}
to this:
var myObjRef = myObj.myProp as MyType; // only one cast
if (myObjRef != null)
{
// myObjRef is already MyType and doesn't ne...