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How do I check for null values in JavaScript?
... Readers, please be careful when using this type of test on numeric data. Do not use ! or !! to test for null or undefined on typically-numeric data unless you also want to throw away values of 0.
– NickS
Feb 24 '16 at 21:06
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How do you set the text in an NSTextField?
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setStringValue: is the way to do it. You should make sure your outlet is being set properly. (In the debugger, make sure your textfield variable is not null.)
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Https Connection Android
I am doing a https post and I'm getting an exception of ssl exception Not trusted server certificate. If i do normal http it is working perfectly fine. Do I have to accept the server certificate somehow?
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How do I move an existing Git submodule within a Git repository?
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Since git 1.8.5, git mv old/submod new/submod works as expected and does all the plumbing for you. You might want to use git 1.9.3 or newer, because it includes fixes for submodule moving.
The process is similar to how you'd remove a submodule (see How do I remove a submodule?):
Edit .g...
Why does .NET foreach loop throw NullRefException when collection is null?
So I frequently run into this situation... where Do.Something(...) returns a null collection, like so:
11 Answers
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Create batches in linq
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You don't need to write any code. Use MoreLINQ Batch method, which batches the source sequence into sized buckets (MoreLINQ is available as a NuGet package you can install):
int size = 10;
var batches = sequence.Batch(size);
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Do you put unit tests in same project or another project?
Do you put unit tests in the same project for convenience or do you put them in a separate assembly?
15 Answers
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How do I change the background color with JavaScript?
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Modify the JavaScript property document.body.style.background.
For example:
function changeBackground(color) {
document.body.style.background = color;
}
window.addEventListener("load",function() { changeBackground('red') });
Note: this does depend ...
How do I convert array of Objects into one Object in JavaScript?
...ll expression before comma and returns a last one(after last comma). So we don't copy obj each time, rather assigning new property to it.
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How do I convert a float number to a whole number in JavaScript?
...a float to a whole number in JavaScript. Actually, I'd like to know how to do BOTH of the standard conversions: by truncating and by rounding. And efficiently, not via converting to a string and parsing.
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