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JavaScript, elegant way to check nested object properties for null/undefined [duplicate]
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Well, javascript has try-catch. Depending on what you actually need to do (i.e. what your else statement would look like if it's undefined), that may be what you want.
example:
try {
user.loc.lat.doSomething();
} catch(error) ...
Are Javascript arrays sparse?
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How exactly JavaScript arrays are implemented differs from browser to browser, but they generally fall back to a sparse implementation - most likely the same one used for property access of regular objects - if using an actual array woul...
How to debug JavaScript / jQuery event bindings with Firebug or similar tools?
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Note that since this runs in content JavaScript, it gets its data by querying JavaScript libraries. So it will only show events added with a supported library (which includes jQuery).
– Matthew Flaschen
Sep 25 '11 at 4:57
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Cross-browser window resize event - JavaScript / jQuery
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Elijah, this is JavaScript. What you wrote is not correct (except for one specific case when you are constructing with new).
– Yoh Suzuki
Mar 13 '13 at 21:00
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How to sort an array of objects with jquery or javascript [duplicate]
...reating a true multidimensional array, you've created an array of (almost) JavaScript Objects. Try defining your arrays like this ->
var array = [ [id,name,value], [id,name,value] ]
Hopefully that helps!
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Make header and footer files to be included in multiple html pages
...mmon parts as header and footer using Server Side Includes. No HTML and no JavaScript is needed. Instead, the webserver automatically adds the included code before doing anything else.
Just add the following line where you want to include your file:
<!--#include file="include_head.html" -->
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JavaScript to scroll long page to DIV
...s I did) and who does not want to use anchors or jquery; there's a builtin javascriptfunction to 'jump' to an element;
document.getElementById('youridhere').scrollIntoView();
and what's even better; according to the great compatibility-tables on quirksmode, this is supported by all major browsers...
JavaScript - Getting HTML form values
How can I get the value of an HTML form to pass to JavaScript?
12 Answers
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endsWith in JavaScript
How can I check if a string ends with a particular character in JavaScript?
31 Answers
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What does = +_ mean in JavaScript
I was wondering what the = +_ operator means in JavaScript. It looks like it does assignments.
12 Answers
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