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How to get all properties values of a JavaScript Object (without knowing the keys)?
If there is an Javascript object:
23 Answers
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Remove duplicates from an array of objects in JavaScript
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If you can use Javascript libraries such as underscore or lodash, I recommend having a look at _.uniq function in their libraries. From lodash:
_.uniq(array, [isSorted=false], [callback=_.identity], [thisArg])
Basically, you pass in the ...
Simplest way to wait some asynchronous tasks complete, in Javascript?
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I see you are using mongoose so you are talking about server-side JavaScript. In that case I advice looking at async module and use async.parallel(...). You will find this module really helpful - it was developed to solve the problem you are struggling with. Your code may look like this
va...
How to use protractor to check if an element is visible?
...ider the case where there is no such element! $('.text-input-input') would alert the user elegantly; this might fail because filteredElement.length === 0?
– The Red Pea
Jan 4 '18 at 2:58
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How can I strip all punctuation from a string in JavaScript using regex?
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@NicolasBernier yeah that's 100% correct - JavaScript's regex engine is actually pretty lame (see: stackoverflow.com/questions/4043307/…) - unfortunately for more complex tasks (and to create patterns for non-English words) it takes a fair bit more code. Still, for...
How do I change Eclipse to use spaces instead of tabs?
...other editor overriding your settings. This was the case for MyEclipse and JavaScript. I had my "Insert spaces for tabs" setting enabled in Text Editors, but tabs were still being used instead of spaces. I was about to call it a day and write it off as a bug, but then I saw a second editor for JavaS...
Difference between a Postback and a Callback
...ative HTML cache. ie Full POSTBACK is often unnecessary.
CALLBACK is just JavaScript. Its just ECMASCRIPT circus tricks ASP.NET stores in what they call their AJAX API in gigantic JavaScript libraries your browser downloads from the server, and which ASP.NET developers unknowingly pack into their w...
Creating a textarea with auto-resize
...).
With Edge (v14-v18 tested).
With IOS Safari.
With Android Browser.
With JavaScript strict mode.
Is w3c validated.
And is streamlined and efficient.
OPTION 1 (With jQuery)
This option requires jQuery and has been tested and is working with 1.7.2 - 3.3.1
Simple (Add this jquery code to your maste...
MongoDb query condition on comparing 2 fields
...You can use a $where. Just be aware it will be fairly slow (has to execute Javascript code on every record) so combine with indexed queries if you can.
db.T.find( { $where: function() { return this.Grade1 > this.Grade2 } } );
or more compact:
db.T.find( { $where : "this.Grade1 > this.Grade2" ...
Convert form data to JavaScript object with jQuery
How do I convert all elements of my form to a JavaScript object?
51 Answers
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