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In an array of objects, fastest way to find the index of an object whose attributes match a search
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I get a warning in my ES6 lint tool that the obj.id == 3 operator used here can cause unexpected type conversion, so use the obj.id === 3 operator instead, which tests for equal value and type.
– thclark
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How to select html nodes by ID with jquery when the id contains a dot?
If my html looked like this:
8 Answers
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How to disable HTML button using JavaScript?
...an set the property equivalent in Javascript:
document.getElementsByName("myButton")[0].disabled = true;
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Remove NA values from a vector
...from that, if you really want to remove the NAs, just use something like:
myvec[!is.na(myvec)]
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Programmatically trigger “select file” dialog box
...ing <input type="file" />, you can do something like:
<input id="myInput" type="file" style="visibility:hidden" />
<input type="button" value="Show Dialog" onclick="$('#myInput').click();" />
Note that I used visibility: hidden, instead of display: none. You cannot call the clic...
How to check Oracle database for long running queries
My application, which uses an Oracle database, is going slow or appears to have stopped completely.
8 Answers
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Iterate over a Javascript associative array in sorted order
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I love this one, thank you. here's my code leveraging this, $(Object.keys(list)).map(function(i,e){return n+'='+list[n];}).get().join('&'); // concat for url querystring
– Elaine
Apr 22 '14 at 8:20
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How to find out how many lines of code there are in an Xcode project?
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I see this floating around and use it myself:
find . "(" -name "*.m" -or -name "*.mm" -or -name "*.cpp" -or -name "*.swift" ")" -print0 | xargs -0 wc -l
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Disable autocomplete via CSS
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@irakli In my case, using form is the ONLY thing that worked. Not input. Thanks.
– khaverim
Jul 22 '14 at 20:20
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Why is [1,2] + [3,4] = “1,23,4” in JavaScript?
...ngs and concatenates those.
Update
Since this question and consequently my answer is getting a lot of attention I felt it would be useful and relevant to have an overview about how the + operator behaves in general also.
So, here it goes.
Excluding E4X and implementation-specific stuff, Javascrip...