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Detect all changes to a (immediately) using JQuery
...e current value of element
elem.data('oldVal', elem.val());
// Look for changes in the value
elem.bind("propertychange change click keyup input paste", function(event){
// If value has changed...
if (elem.data('oldVal') != elem.val()) {
// Updated stored value
ele...
React JSX: selecting “selected” on selected option
In a React component for a <select> menu, I need to set the selected attribute on the option that reflects the application state.
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doGet and doPost in Servlets
I've developed an HTML page that sends information to a Servlet. In the Servlet, I am using the methods doGet() and doPost() :
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Responding with a JSON object in Node.js (converting object/array to JSON string)
...esponse) {
console.log("response.json sets the appropriate header and performs JSON.stringify");
response.json({
anObject: { item1: "item1val", item2: "item2val" },
anArray: ["item1", "item2"],
another: "item"
});
}
Alternatively:
function random(response) {
console.log("Re...
How to get the index of an element in an IEnumerable?
...concept of an index. What you are doing really doesn't make a lot of sense for an IEnumerable. If you need something that supports access by index, put it in an actual list or collection.
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How to find Unused Amazon EC2 Security groups
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you may want to add a --filter for your vpc so you dont have to see other default vpc sg
– shadowbq
Jun 30 '16 at 12:02
2
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Storing integer values as constants in Enum manner in java [duplicate]
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The most common valid reason for wanting an integer constant associated with each enum value is to interoperate with some other component which still expects those integers (e.g. a serialization protocol which you can't change, or the enums represent col...
Using jquery to get element's position relative to viewport
...Look into the Dimensions plugin, specifically scrollTop()/scrollLeft(). Information can be found at http://api.jquery.com/scrollTop.
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difference between collection route and member route in ruby on rails?
...collection of votes being created.The named path would be posts_votes_url, for example.
– George Shaw
Feb 21 '14 at 6:10
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Storing time-series data, relational or non?
I am creating a system which polls devices for data on varying metrics such as CPU utilisation, disk utilisation, temperature etc. at (probably) 5 minute intervals using SNMP. The ultimate goal is to provide visualisations to a user of the system in the form of time-series graphs.
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