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Convert string to title case with JavaScript
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/([^\W_]+[^\s-]*) */g solves the Jim-Bob problem, ie: jim-bob --> Jim-Bob
– recursion.ninja
Jun 1 '13 at 18:55
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How to wait until an element exists?
... * @property {object} jQuery plugin which runs handler function once specified
* element is inserted into the DOM
* @param {function|string} handler
* A function to execute at the time when the element is inserted or
* string "remove" to remove the listener from...
Why don't Java's +=, -=, *=, /= compound assignment operators require casting?
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@ronnieaka: I'm guessing that the language designers felt that in one case (i += j), it is safer to assume that the loss of precision is desired as opposed to the other case (i = i + j)
– Lukas Eder
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Flask SQLAlchemy query, specify column names
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You can use the with_entities() method to restrict which columns you'd like to return in the result. (documentation)
result = SomeModel.query.with_entities(SomeModel.col1, SomeModel.col2)
Depending on your requirements, you may also find deferreds...
How to check whether an object is a date?
...instanceof Date
This will fail if objects are passed across frame boundaries.
A work-around for this is to check the object's class via
Object.prototype.toString.call(date) === '[object Date]'
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What is the meaning of “$” sign in JavaScript
...oks like it's referencing methods from one of the popular JavaScript libraries (jQuery, ProtoType, mooTools, and so on).
There's nothing mysterious about the use of $ in JavaScript. $ is simply a valid JavaScript identifier.
JavaScript allows upper and lower letters, numbers, and $ and _. The $ wa...
How do you debug MySQL stored procedures?
... block.
I also use a logging table with many of my jobs so that I can review processes and timing. My Debug code gets output there as well. I include the calling param name, a brief description, row counts affected (if appropriate), a comments field and a time stamp.
Good debugging tools is one...
How to get height of entire document with JavaScript?
... a browser compatibility nightmare because, although all browsers expose clientHeight and scrollHeight properties, they don't all agree how the values are calculated.
There used to be a complex best-practice formula around for how you tested for correct height/width. This involved using document.do...
Javascript : natural sort of alphanumerical strings
I'm looking for the easiest way to sort an array that consists of numbers and text, and a combination of these.
7 Answers
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How can I check if an element exists in the visible DOM?
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var elementExists = document.getElementById("find-me");
This is specified to either return a reference to the element or null. If you must have a Boolean value, simply toss a !! before the method call.
In addition, you can use some of the many other methods that exist for finding elements, suc...