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JavaScript Error Handling
By
JC.Adinarayana Reddy
On 20 Dec 2016
Categories:
Javascript
Debugging is quite unpleasant due to type-less nature of variables and run-time interpretation on a browser.
JavaScript uses try..catch blocks for catching that erroneously uses a variable as the wrong data type.
try { var x = 1; //x is a number var xLength = x.length; //x now assumed to be a string or an array - will fail } catch(e){ alert(e.message); //Display exception }
Visual Studio has some JavaScript debugging support.
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