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ReactJS - Does render get called any time “setState” is called?

...te from official docs http://facebook.github.io/react/docs/component-specs.html#updating-shouldcomponentupdate By default, shouldComponentUpdate always returns true to prevent subtle bugs when the state is mutated in place, but if you are careful to always treat the state as immutable and to...
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“Templates can be used only with field access, property access, single-dimension array index, or sin

...the same problem with something like @foreach (var item in Model) { @Html.DisplayFor(m => !item.IsIdle, "BoolIcon") } I solved this just by doing @foreach (var item in Model) { var active = !item.IsIdle; @Html.DisplayFor(m => active , "BoolIcon") } When you know the trick, i...
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Can you detect “dragging” in jQuery?

... fiddle link $(function() { var isDragging = false; $("#status").html("status:"); $("a") .mousedown(function() { $("#status").html("status: DRAGGED"); }) .mouseup(function() { $("#status").html("status: dropped"); }); $("ul").sortable(); ...
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Getting the parent div of element

...ces: DOM2 Core specification - well-supported by all major browsers DOM2 HTML specification - bindings between the DOM and HTML DOM3 Core specification - some updates, not all supported by all major browsers HTML5 specification - which now has the DOM/HTML bindings in it ...
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Set cache-control for entire S3 bucket automatically (using bucket policies?)

...e info: http://docs.aws.amazon.com/cli/latest/userguide/using-s3-commands.html http://docs.aws.amazon.com/cli/latest/reference/s3/cp.html#options Known Issues: "Unknown options: --metadata-directive, REPLACE" this can be caused by an out of date awscli - see @eliotRosewater's answer below S3cmd ...
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What are Long-Polling, Websockets, Server-Sent Events (SSE) and Comet?

...diately sends another request to the server, re-starting the process. HTML5 Server Sent Events (SSE) / EventSource: A client requests a webpage from a server using regular HTTP (see HTTP above). The client receives the requested webpage and executes the JavaScript on the page which opens a co...
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Zoom in on a point (using scale and translate)

I want to be able to zoom in on the point under the mouse in an HTML 5 canvas, like zooming on Google Maps . How can I achieve that? ...
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wait() or sleep() function in jquery?

...od. Remaining chain would be executed after sleep period. $(".toFill").html("Click here") .$on('click') .html('Loading...') .sleep(1000) .html( 'done') .toggleClass('clickable') .prepend('Still clicka...
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How does Zalgo text work?

...79; i++){console.log(new DOMParser().parseFromString("&#"+i+";", "text/html").documentElement.textContent +" "+"&#"+i+";");} Also check em out Mͣͭͣ̾ Vͣͥͭ͛ͤͮͥͨͥͧ̾ share | ...
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Border around specific rows in a table?

I'm trying to design some HTML/CSS that can put a border around specific rows in a table. Yes, I know I'm not really supposed to use tables for layout but I don't know enough CSS to completely replace it yet. ...