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Disable ActiveRecord for Rails 4
...n without a database:
rails new myApp --skip-active-record
Notice the extra hyphen '-' as opposed to previous versions of Rails.
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How can I get a resource “Folder” from inside my jar File?
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Finally, I found the solution:
final String path = "sample/folder";
final File jarFile = new File(getClass().getProtectionDomain().getCodeSource().getLocation().getPath());
if(jarFile.isFile()) { // Run with JAR file
final JarFile jar = new JarFile(jarFile...
Class method decorator with self arguments?
...t reads the attribute off of that. You can pass in the attribute name as a string to the decorator and use getattr if you don't want to hardcode the attribute name:
def check_authorization(attribute):
def _check_authorization(f):
def wrapper(self, *args):
print getattr(self,...
best way to get the key of a key/value javascript object
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What if I don’t want to alert()foo[i]ifiissome string?
– user2284570
May 30 '16 at 21:47
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What is the difference between a User Control Library and a Custom Control Library?
... control is that if you can get something done with a user control and the extra control element in the logical tree doesn't bother you, use a user control as they are so much easier to create and maintain. Use a custom control only if you have a reason not to use a user control.
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how do you filter pandas dataframes by multiple columns
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Note that the Gender and Year should both be strings, i.e., 'Gender' and 'Year'.
– Steven C. Howell
May 4 '17 at 19:47
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Default value in Go's method
...r chooses to use default values
// Both parameters are optional, use empty string for default value
func Concat1(a string, b int) string {
if a == "" {
a = "default-a"
}
if b == 0 {
b = 5
}
return fmt.Sprintf("%s%d", a, b)
}
**Option 2:** A single optional parameter at the end
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LINQ query on a DataTable
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VB Version needs to insert (Of String) between myRow.Field and ("RowNo"). That part should read: myRow.Field(Of String)("RowNo") = 1 - Reference @Cros comment.
– yougotiger
Jun 18 '12 at 22:26
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Find document with array that contains a specific value
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As favouriteFoods is a simple array of strings, you can just query that field directly:
PersonModel.find({ favouriteFoods: "sushi" }, ...);
But I'd also recommend making the string array explicit in your schema:
person = {
name : String,
favouriteFoods...
C++应用程序添加VBScript和JavaScript支持 - C/C++ - 清泛网移动版 - 专注IT技能提升
...for the array passed to your function by checking the .length property for string function or by some other means.
function CountParam(aParam)
{
var strPresent = "Parameter is : " + (aParam.length>0 ? "Present": "Not present");
return strPresent;
}
The same technique may be used ...