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cannot convert data (type interface {}) to type string: need type assertion
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According to the Go specification:
For an expression x of interface type and a type T, the primary expression x.(T) asserts that x is not nil and that the value stored in x is of type T.
A "type assertion" allows you to declare an interface value contains a certain ...
How to force JS to do math instead of putting two strings together
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You have the line
dots = document.getElementById("txt").value;
in your file, this will set dots to be a string because the contents of txt is not restricted to a number.
to convert it to an int change the line to:
dots = parseInt(document.getElementById("txt").value, 10);...
Remove the bottom divider of an android ListView
I have a fixed height ListView . It has divider between list items, but it also displays dividers after the last list item.
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Python element-wise tuple operations like sum
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Except that map() is semi-deprecated. See artima.com/weblogs/viewpost.jsp?thread=98196 for an article by Guido where it mentions how map is better written as a list comprehension.
– Adam Parkin
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How can I check if a key is pressed during the click event with jQuery?
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You can even detect Mac OS X's command key using if (e.metaKey) alert('Command down'). Here's a nice article about key events in JS unixpapa.com/js/key.html
– F Lekschas
Nov 2 '15 at 23:39
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Visual Studio - Shortcut to Navigate to Solution Explorer
...ion) that would take me from inside a document directly into the solution explorer? I don't want to customize any shortcuts or change any default behavior.
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How to emulate C array initialization “int arr[] = { e1, e2, e3, … }” behaviour with std::array?
...turned value (which is also legal but not required). In practice, I would expect any C++ compiler to be able to optimize that such that it's as fast as direct initialization.
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Unmangling the result of std::type_info::name
...ef __GNUG__
#include <cstdlib>
#include <memory>
#include <cxxabi.h>
std::string demangle(const char* name) {
int status = -4; // some arbitrary value to eliminate the compiler warning
// enable c++11 by passing the flag -std=c++11 to g++
std::unique_ptr<char, voi...
Embedding Base64 Images
...supported by the following web browsers:
Gecko-based, such as Firefox, SeaMonkey, XeroBank, Camino, Fennec and K-Meleon
Konqueror, via KDE's KIO slaves input/output system
Opera (including devices such as the Nintendo DSi or Wii)
WebKit-based, such as Safari (including on iOS), Android'...
Objective-C formatting string for boolean?
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I love cake and no cake! I am going to replace all my x?@"YES":@"NO" code with x?@"Cake":@"No Cake" immediately :D -- well, at least for my object descriptions anyway ;)
– Jason Coco
Apr 8 '10 at 23:26
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