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Is there a “null coalescing” operator in JavaScript?
...Boolean(null)); // false
alert(Boolean(undefined)); // false
alert(Boolean(0)); // false
alert(Boolean("")); // false
alert(Boolean("false")); // true -- gotcha! :)
This means:
var whatIWant = null || new ShinyObject(); // is a new shiny object
var whatIWant = undefined || "well defined"; // is "...
Running python script inside ipython
...er, works on IPython.
– rotton
Feb 20 at 8:45
2
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Scatter plot and Color mapping in Python
...ints x and y stored in numpy arrays.
Those represent x(t) and y(t) where t=0...T-1
3 Answers
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How to force a SQL Server 2008 database to go Offline
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answered Jun 9 '10 at 12:21
abatishchevabatishchev
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Check if an element is a child of a parent
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answered Sep 20 '10 at 17:04
user113716user113716
291k5959 gold badges425425 silver badges431431 bronze badges
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Xcode Product -> Archive disabled
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1360
You've changed your scheme destination to a simulator instead of Generic iOS Device.
That's why...
Remove commas from the string using JavaScript
...so you can do the maths, you'll need parseFloat:
var total = parseFloat('100,000.00'.replace(/,/g, '')) +
parseFloat('500,000.00'.replace(/,/g, ''));
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How to add a footer to a UITableView in Storyboard
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107
Note that you can only do this if you have more than 0 prototype cells specified. Otherwise, the dragged-in view always becomes the header...
R - Markdown avoiding package loading messages
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edited Aug 7 '18 at 21:10
answered Oct 26 '12 at 16:35
Yi...
What is non-blocking or asynchronous I/O in Node.js?
...;
Asynchronous: 1,3,2
alert(1);
setTimeout(() => alert(2), 0);
alert(3);
Blocking vs Non-blocking
Blocking refers to operations that block further execution until that operation finishes. Non-blocking refers to code that doesn't block execution. In the given example, localSt...