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How do you serve a file for download with AngularJS or Javascript?
...ta);
var blob = new Blob([$scope.toJSON], { type:"application/json;charset=utf-8;" });
var downloadLink = angular.element('<a></a>');
downloadLink.attr('href',window.URL.createObjectURL(blob));
downloadLink.attr('download', 'fi...
Responding with a JSON object in Node.js (converting object/array to JSON string)
...on with Express:
function random(response) {
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 r...
Forward function declarations in a Bash or a Shell script?
...
I prefer arguments. Barring that, I'll set global variables in main or in a function right after main (e.g., setup or parseArguments). I avoid having global variables set above main -- code should not go outside of main.
– John Kugelman
...
“Unresolved inclusion” error with Eclipse CDT for C standard library headers
I set up CDT for eclipse and wrote a simple hello world C program:
14 Answers
14
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What is the difference between IQueryable and IEnumerable?
...stant expression of the object itself or a more complex tree of a composed set of query operators and operands. The query provider's IQueryProvider.Execute() or IQueryProvider.CreateQuery() methods are called with an Expression passed to it, and then either a query result or another IQueryable is re...
How to use “raise” keyword in Python [duplicate]
I have read the official definition of "raise", but I still don't quite understand what it does.
6 Answers
...
How do I insert NULL values using PDO?
...ble, not a constant. So before that line you need to create a variable and set it to null
$myNull = null;
$stmt->bindParam(':v1', $myNull, PDO::PARAM_NULL);
You would get the same error message if you tried:
$stmt->bindParam(':v1', 5, PDO::PARAM_NULL);
...
Synchronization vs Lock
...
If you're simply locking an object, I'd prefer to use synchronized
Example:
Lock.acquire();
doSomethingNifty(); // Throws a NPE!
Lock.release(); // Oh noes, we never release the lock!
You have to explicitly do try{} finall...
@Transactional(propagation=Propagation.REQUIRED)
...
When the propagation setting is PROPAGATION_REQUIRED, a logical transaction scope is created for each method upon which the setting is applied. Each such logical transaction scope can determine rollback-only status individually, with an outer tra...
How do I measure separate CPU core usage for a process?
...etime, not the last X seconds, so you'll need to restart your process to reset the counter.
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