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How to turn on WCF tracing?

... In your web.config (on the server) add <system.diagnostics> <sources> <source name="System.ServiceModel" switchValue="Information, ActivityTracing" propagateActivity="true"> <listeners> <add name...
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Is it possible to prevent an NSURLRequest from caching data or remove cached data following a reques

...e, I perform a HTTP request using NSURLRequest for a chunk of data. Object allocation spikes and I assign the data accordingly. When I finish with the data, I free it up accordingly - however instruments doesn't show any data to have been freed! ...
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Using relative URL in CSS file, what location is it relative to?

... if your css is in a bundle the path really doesn't matter. It's not where you think it's going to be, nothing is relative anymore. – Tod Mar 15 '18 at 14:44 ...
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How to ignore user's time zone and force Date() use specific time zone

... A Date object's underlying value is actually in UTC. To prove this, notice that if you type new Date(0) you'll see something like: Wed Dec 31 1969 16:00:00 GMT-0800 (PST). 0 is treated as 0 in GMT, but .toString() method shows the local time. Big note, UTC stands ...
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How do I start Mongo DB from Windows?

I have installed MongoDB on my Windows 7 (64 bit) machine. I have created the path data/db too but when I tried to start mongodb using the command 'C:\mongodb\bin\mongod.exe' , it is not starting. It is showing admin web console waiting for connections on port 28017 . ...
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Check element CSS display with JavaScript

...le equal doesn't do type coercion. Crockford explains why, in the section called "=== and !== Operators." – sdleihssirhc Feb 1 '11 at 18:15 ...
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What are “named tuples” in Python?

... Named tuples are basically easy-to-create, lightweight object types. Named tuple instances can be referenced using object-like variable dereferencing or the standard tuple syntax. They can be used similarly to struct or other common record types...
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“Large data” work flows using pandas

... one contains different fields, or do they have some records per file with all of the fields in each file? Do you ever select subsets of rows (records) based on criteria (e.g. select the rows with field A > 5)? and then do something, or do you just select fields A, B, C with all of the records (a...
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inject bean reference into a Quartz job in Spring?

... I do not use Spring's Quartz jobs, because I need to schedule them dynamically, at run time, and all examples of integrating Spring with Quartz that i found were hard-coding the shcedules in the Spring config files... Anyway, here is how I schedule the job: ...
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Try catch statements in C

... exceptions but you can simulate them to a degree with setjmp and longjmp calls. static jmp_buf s_jumpBuffer; void Example() { if (setjmp(s_jumpBuffer)) { // The longjmp was executed and returned control here printf("Exception happened here\n"); } else { // Normal code execution s...