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cannot convert data (type interface {}) to type string: need type assertion
...tice.
Here is the explanation from a tour of go:
A type assertion provides access to an interface value's underlying concrete value.
t := i.(T)
This statement asserts that the interface value i holds the concrete type T and assigns the underlying T value to the variable t.
If i does...
How to commit no change and new message?
...documentation.
While the tree object (which has a hash of its own) will be identical, the commit will actually have a different hash, because it will presumably have a different timestamp and message, and will definitely have a different parent commit. All three of those factors are integrated into ...
Redirect stdout pipe of child process in Go
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
Colors with unix command “watch”?
... @AndréLeria The second "example" is a wrong example (As its said in the las line). The point is that once you hit a pipe you lose the color codes since you aren't writing to a terminal. It is there to show how wrong is to try to compensate the flicker due the time lapse between clear an...
What is “above-the-fold content” in Google Pagespeed?
... visually to the page as it loads and when it is alike enough, they'll consider that the point where the ATF content is loaded.
This is a video presentation from Google on this subject:
http://www.youtube.com/watch?v=YV1nKLWoARQ
The emphasis is on getting users something to do within the first se...
REST API Best practices: args in query string vs in request body
...
What are the best practices and considerations of choosing between 1
and 2 above?
Usually the content body is used for the data that is to be uploaded/downloaded to/from the server and the query parameters are used to specify the exact data requested. For e...
How to install Xcode Command Line Tools
...in Xcode.
Running the command in terminal produces the following GUI:
Inside Xcode (5.0)
Xcode includes a new "Downloads" preference pane to install optional components such as command line tools, and previous iOS Simulators. To open this pane click the "Xcode" button in the top left of the scre...
Android studio: why are minSdkVersion and targetSdkVersion specified both in AndroidManifest.xml and
I just discovered something weird about Android studio: it has some configuration options in the build.gradle file that override what is specified in the AndroidManifest.xml file.
...
“find: paths must precede expression:” How do I specify a recursive search that also finds files in
...
For some reason single quotes didn't work for me. I had to use double quotes. ¯\_(ツ)_/¯
– Planky
Mar 24 '17 at 21:41
...
How can I tell PyCharm what type a parameter is expected to be?
...n it comes to constructors, and assignments, and method calls, the PyCharm IDE is pretty good at analyzing my source code and figuring out what type each variable should be. I like it when it's right, because it gives me good code-completion and parameter info, and it gives me warnings if I try to a...