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Counting array elements in Python [duplicate]
... out as 2, as does len(array([[0, 0], [0, 0]])).
– EL_DON
Jan 19 '18 at 22:49
how about index of array? for example, w...
Why does using an Underscore character in a LIKE filter give me all the results?
...
Modify your WHERE condition like this:
WHERE mycolumn LIKE '%\_%' ESCAPE '\'
This is one of the ways in which Oracle supports escape characters. Here you define the escape character with the escape keyword. For details see this link on Oracle Docs.
The '_' and '%' are wildcards in a ...
Use underscore inside Angular controllers
...d:
var underscore = angular.module('underscore', []);
underscore.factory('_', ['$window', function($window) {
return $window._; // assumes underscore has already been loaded on the page
}]);
And then you can ask for the _ in your app's module:
// Declare it as a dependency of your module
var a...
Git Push ERROR: Repository not found
...ter before sending the git push: Lets say for this example my password is _pa``ssword_ Phpstorm would output the following: https://_username_:_password_@github.com/_username_/repo.git instead of https://_username_:_pa``ssword_@github.com/_username_/repo.git Changed password to something not ...
Xcode build failure “Undefined symbols for architecture x86_64”
...ometimes the error "build failure “Undefined symbols for architecture x86_64”" may be caused by this. Because, some libs (not Apple's) were compiled for x32 originally and doesn't support x64.
So what you need, is to change the "Architectures" for your project target like this
NB. If you're us...
MongoDB: Combine data from multiple collections into one..how?
...ns). You need to have some key in both collections that you can use as an _id.
For example, let's say you have a users collection and a comments collection and you want to have a new collection that has some user demographic info for each comment.
Let's say the users collection has the following ...
How do you debug PHP scripts? [closed]
...step into the code is a much better way to debug then the old method of var_dump and print at various points to see where your flow goes wrong. When all else fails though and all I have is SSH and vim I still var_dump()/die() to find where the code goes south.
...
Why doesn't Python have a sign function?
...y removed and replaced by sign! Have you never implemented a class with a __cmp__ method? Have you never called cmp and specified a custom comparator function?
In summary, I've found myself wanting a sign function too, but copysign with the first argument being 1 will work just fine. I disagree ...
What is the difference between quiet NaN and signaling NaN?
...+ in this answer instead of C because it offers the convenient std::numeric_limits::quiet_NaN and std::numeric_limits::signaling_NaN which I could not find in C conveniently.
I could not however find a function to classify if a NaN is sNaN or qNaN, so let's just print out the NaN raw bytes:
main.c...
Are types like uint32, int32, uint64, int64 defined in any stdlib header?
...
The C99 stdint.h defines these:
int8_t
int16_t
int32_t
uint8_t
uint16_t
uint32_t
And, if the architecture supports them:
int64_t
uint64_t
There are various other integer typedefs in stdint.h as well.
If you're stuck without a C99 environment then you sho...