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Null vs. False vs. 0 in PHP
...mpatibility). Despite the design wishing some consistency (outlined in the selected answer here), it all get confusing when you consider method returns that use false/null in not-so-easy to reason ways.
You will often see null being used when they are already using false for something. e.g. filter_i...
Editing Javascript using Chrome Developer Tools
...ct, try right-clicking on the edited file in the tree-view on the left and select "Save". A dialog may appear asking you to save a local file, but you can just cancel. Only at that point Chrome's edit history finally shows that the edit has stuck.
– Erhhung
Aug...
What is Unicode, UTF-8, UTF-16?
...takes 2 bytes in UTF-8, there are 5 reserved bits, leaving only 11 bits to select a code point. U+07FF ends up being the highest code point representable in 2 bytes.
– DPenner1
Oct 8 '14 at 3:40
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How can I check if an element exists in the visible DOM?
...to the original question).
That's as simple as using any of the browser's selecting method, and checking it for a truthy value (generally).
For example, if my element had an id of "find-me", I could simply use...
var elementExists = document.getElementById("find-me");
This is specified to eithe...
Detect backspace in empty UITextField
...ss UITextField and implement canPerformAction:withSender: to return NO for select: and selectAll: actions when the text is equal to the string @"\u200B".
– ma11hew28
Oct 19 '11 at 21:56
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jQuery get the location of an element relative to window
...
This sounds more like you want a tooltip for the link selected. There are many jQuery tooltips, try out jQuery qTip. It has a lot of options and is easy to change the styles.
Otherwise if you want to do this yourself you can use the jQuery .position(). More info about .posit...
What is the difference between the Data Mapper, Table Data Gateway (Gateway), Data Access Object (DA
...ata Gateway is used mainly for a single table or view. It contains all the selects, inserts, updates, and deletes. So Customer is a table or a view in your case. So, one instance of a table data gateway object handles all the rows in the table. Usually this is related to one object per database tabl...
Xcode - But… Where are our archives?
... (menu Window > Organizer)
Click on the Archives icon in the top middle
Select the desired archive by app name and date
Click Show in Finder in the context menu
share
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improve this answer
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How can I prevent the “You have mixed tabs and spaces. Fix this?” message?
...ch because of the way things laid out looked just like a space. Of course, selecting that class? Impossible, as it was "classA[tab]classB".
– David T. Macknet
Feb 9 '16 at 16:57
8
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git: How to diff changed files versus previous versions after a pull?
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+1 for what I was googling. Would be awesome if this was selected as the answer and bumped to the top... :)
– longda
Mar 29 '13 at 22:36
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