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How do I create a dynamic key to be added to a JavaScript object variable [duplicate]
...e case the object involved happens to be an array is unimportant, in other words.
When setting property values using [ ], the story is the same except for the special behavior around maintaining the length property. If you set a property with a numeric key on an array instance:
myArray[200] = 5;
th...
Remove Primary Key in MySQL
...ed your direct question. Just a side note: Maybe this is just some awkward wording on your part, but you seem to be under the impression that you have three primary keys, one on each field. This is not the case. By definition, you can only have one primary key. What you have here is a primary key th...
What is the equivalent to a JavaScript setInterval/setTimeout in Android/Java?
...andlers or Timers makes an Android phone wake up from sleep mode. In other words, if you want to schedule something to actually happen even though the screen is off / cpu is sleeping, you need to check out the AlarmManager too.
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MVC 4 Razor File Upload
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In other words - Your view model property name must match that of the input type name. If your viewmodel property is named AgentPhoto then you must have the following on your view: <input type="file" name="AgentPhoto"/>
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Chrome: Uncaught SyntaxError: Unexpected end of input
...rying to parse an empty JSON:
JSON.parse(stringifiedJSON);
In other words, what happened was the following:
JSON.parse("");
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Should I use px or rem value units in my CSS? [closed]
... the px unit so that its size matches that of a reference pixel. In other words, this rescaling is exactly why 1 CSS pixel equals 2 physical Retina display pixels.
That said, up until 2010 (and the mobile zoom situation notwithstanding), the px almost always did equal one physical pixel, because a...
“Unsafe JavaScript attempt to access frame with URL…” error being continuously generated in Chrome w
...k, you don't have a trailing forward slash in the Site URL field. In other words, you need "http://domain.com/" not "http://domain.com"
You can check the Site URL setting from developers.facebook.com/apps Edit settings -> Basic -> Site URL.
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What does PHP keyword 'var' do?
... "Note: The PHP 4 method of declaring a variable with the var keyword is still supported for compatibility reasons (as a synonym for the public keyword). In PHP 5 before 5.1.3, its usage would generate an E_STRICT warning." php.net/manual/en/language.oop5.visibility.php EDIT: I just saw th...
How do I get the last inserted ID of a MySQL table in PHP?
...inner when you need to get your hands dirty with low level stuff. In other words, even if one chooses PDO, he eventually will need to use mysqli anyway.
– Pacerier
Jan 28 '15 at 11:44
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How to convert all text to lowercase in Vim
...ssible to convert text to bold or italic in any text editor (as opposed to word processor). If you want to convert text to lowercase, create a visual block and press u (or U to convert to uppercase). Tilde (~) in command mode reverses case of the character under the cursor.
If you want to see all te...