Center image horizontally within a div
Here’s my solution in: http://jsfiddle.net/marvo/3k3CC/2/
When to use componentWillReceiveProps lifecycle method?
componentWillReceiveProps is required if you want to update the state values with new props values, this method will get called whenever any change happens to props values. In your case why you need this componentWillReceiveProps method? Because you are storing the props values in state variable, and using it like this: this.state.KeyName That’s why you … Read more
Definition of a Balanced Tree
I am just wondering if someone might be able to clarify the definition of a balanced tree for me. I have that “a tree is balanced if each sub-tree is balanced and the height of the two sub-trees differ by at most one. I apologize if this is a dumb question, but does this definition … Read more
Is it more efficient to copy a vector by reserving and copying, or by creating and swapping? [duplicate]
Your second example does not work if you send the argument by reference. Did you mean That would work, but an easier way is
What is difference between png8 and png24
I want to know about uses of png files. There are two formats available for png images; one is png8 and the another one is png24. I would like to know that if I use either type in my html page, will there be any error? Or is this only quality matter?
What is the difference between MVC and MVVM?
MVC/MVVM is not an either/or choice. The two patterns crop up, in different ways, in both ASP.Net and Silverlight/WPF development. For ASP.Net, MVVM is used to two-way bind data within views. This is usually a client-side implementation (e.g. using Knockout.js). MVC on the other hand is a way of separating concerns on the server-side. For … Read more
json.dumps vs flask.jsonify
The jsonify() function in flask returns a flask.Response() object that already has the appropriate content-type header ‘application/json’ for use with json responses. Whereas, the json.dumps() method will just return an encoded string, which would require manually adding the MIME type header. See more about the jsonify() function here for full reference. Edit: Also, I’ve noticed … Read more
CSS opacity only to background color, not the text on it?
It sounds like you want to use a transparent background, in which case you could try using the rgba() function: rgba(R, G, B, A) R (red), G (green), and B (blue) can be either <integer>s or <percentage>s, where the number 255 corresponds to 100%. A (alpha) can be a <number> between 0 and 1, or … Read more
How to create a jQuery function (a new jQuery method or plugin)?
From the Docs: Then you do
ORA-00907: missing right parenthesis
I have been looking at this code for the past two days now and I can not seem to get it to work. It keeps giving me ORA-00907: missing right parenthesis. I know that this is a topic that comes up a lot but for some reason none of the examples I have seen has … Read more