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How to inspect FormData?

... Updated Method: As of March 2016, recent versions of Chrome and Firefox now support using FormData.entries() to inspect FormData. Source. // Create a test FormData object var formData = new FormData(); formData.append('key1', 'value1'); formData.append('key2', 'value2'); // Display the key/valu...
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How do I check if an element is really visible with JavaScript? [duplicate]

... I don't know how much of this is supported in older or not-so-modern browsers, but I'm using something like this (without the neeed for any libraries): function visible(element) { if (element.offsetWidth === 0 || element.offsetHeig...
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How to listen for changes to a MongoDB collection?

... Replica Set, all of the MongoDB actions are logged to an operations log (known as the oplog). The oplog is basically just a running list of the modifications made to the data. Replicas Sets function by listening to changes on this oplog and then applying the changes locally. Does this sound famil...
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How to get the name of enumeration value in Swift?

... As of Xcode 7 beta 5 (Swift version 2) you can now print type names and enum cases by default using print(_:), or convert to String using String's init(_:) initializer or string interpolation syntax. So for your example: enum City: Int { case Melbourne = 1, Chelyabin...
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How does the extend() function work in jQuery?

...d to the first object / first parameter Ex: $.extend(object1, object2); Now object1 contains properties of object2 If we want to merge two objects, then we need to pass empty object in the first parameter Ex: var newObject = $.extend({}, object1, object2); Now newObject contains both properti...
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Clear back stack using fragments

...he claimed working proposals). If null, only the top state is popped Now, I do realize that I'm lacking knowledge of your particular implementations (like how many entries you have in the back stack at the given point in time), but I would bet all my money on the accepted answer when expecting...
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What is the list of possible values for navigator.platform as of today? [closed]

I know that this changes quite often, but is there a list as exhaustive as possible out there of the possible values returned by navigator.platform ? ...
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Exception thrown in catch and finally clause

...the new exception is still subject to that catch's finally block, if any. Now retrace the execution remembering that, whenever you hit throw, you should abort tracing the current exception and start tracing the new exception. ...
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How to compare arrays in JavaScript?

...rent types => not equal return false; } } //Now a deeper check using other objects property names for(propName in object2) { //We must check instances anyway, there may be a property that only exists in object2 //I wonder, if remembering the che...
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Can git undo a checkout of unstaged files

... history of changes independent from the git changes, saved me a few times now ^^ share | improve this answer | follow | ...