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Check for array not empty: any?
Is it bad to check if an array is not empty by using any? method?
6 Answers
6
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Swift - Convert to absolute value
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The standard abs() function works great here:
let c = -8
print(abs(c))
// 8
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Dump a NumPy array into a csv file
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cs95
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answered May 21 '11 at 10:10
Jim BrissomJim...
JavaScript: Overriding alert()
... web page, you do whatever you want to with it.
I already did this to track analytics events without modifying a library but by sneaking into events.
Use the proxy pattern:
(function(proxied) {
window.alert = function() {
// do something here
return proxied.apply(this, arguments);
};
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How can I make git do the “did you mean” suggestion?
...appropriately. For example, git config --global help.autocorrect 5 will make it wait half a second before running the command so you can see the message first.
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Alter a MySQL column to be AUTO_INCREMENT
I’m trying to modify a table to make its primary key column AUTO_INCREMENT after the fact. I have tried the following SQL, but got a syntax error notification.
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Using --no-rdoc and --no-ri with bundler
...g gem install gem_name I can pass --no-rdoc and --no-ri switches to skip generating RDoc/RI documentation for the gem on install.
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Is 'float a = 3.0;' a correct statement?
...avoid it you should declare:
float foo(float x) { return x * 0.42f; } // OK, no conversion required
To avoid bugs when comparing results:
e.g. the following comparison fails :
float x = 4.2;
if (x == 4.2)
std::cout << "oops"; // Not executed!
We can fix it with the float literal notat...
class name and method name dropdown list is missing (visual studio setting)
Does anyone know how to get my class name and method name dropdown lists again? It's the dropdown lists that are usually above the code. It's just a setting but i can't seem to find it. I don't want to reset my setting btw. I shouldn't have to.
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Test if element is present using Selenium WebDriver?
...what I want, because it can be that an element is not present and that is okay, that is not a fail of the test, so an exception can not be the solution.
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