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Convert a list to a data frame
... byrow=T))
The above will convert all character columns to factors, to avoid this you can add a parameter to the data.frame() call:
df <- data.frame(matrix(unlist(l), nrow=132, byrow=T),stringsAsFactors=FALSE)
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converting a base 64 string to an image and saving it
...appening save the image before disposing the memory stream (while still inside the using statement).
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What is the difference between String.Empty and “” (empty string)?
...y behave differently are:
Default Parameter value in C# 4.0 or higher
void SomeMethod(int ID, string value = string.Empty)
// Error: Default parameter value for 'value' must be a compile-time constant
{
//... implementation
}
Case expression in switch statement
string str = "";
switch(str)...
How does Angular $q.when work?
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
Converting String To Float in C#
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Please provide some context as to why this is the right answer.
– Bas Peeters
Nov 25 '14 at 15:20
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Why do loggers recommend using a logger per class?
...ager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
public void SomeMethod()
{
_logger.DebugFormat("File not found: {0}", _filename);
}
One logger per app (or similar)
Logger.DebugFormat("File not found: {0}", _filename); // Logger determines caller
-- or --
Logger.DebugFormat...
Include CSS,javascript file in Yii Framework
... where we have css & javascript files, like in css folder which is outside the protected folder, css & js files of extension & widgets which we need to include externally sometime when use ajax a lot, js & css files of core framework which also we need to include externally sometime....
How to insert a row in an HTML table body in JavaScript
...t a reference to it and add it there.
var tableRef = document.getElementById('myTable').getElementsByTagName('tbody')[0];
// Insert a row in the table at the last row
var newRow = tableRef.insertRow();
// Insert a cell in the row at index 0
var newCell = newRow.insertCell(0);
// Append a text...
Django Template Variables and Javascript
...isn't a "variable" or anything like it. It's just rendered text.
Having said that, you can put this kind of substitution into your JavaScript.
<script type="text/javascript">
var a = "{{someDjangoVariable}}";
</script>
This gives you "dynamic" javascript.
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list_display - boolean icons for methods
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Any idea how to do it when you use the @property decorator?: "AttributeError: 'property' object has no attribute 'boolean'"
– Kye Russell
Mar 19 '15 at 8:27
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