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What's the 'Ruby way' to iterate over two arrays at once
... more symmetrical. Probably not as fast, though, since you're creating the extra [a,b] array.
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Requests — how to tell if you're getting a 404
...t requests.get to raise for any reason except a 2XX without having to make extra calls.
– Asfand Qazi
Jan 31 '19 at 12:12
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Is it valid to replace http:// with // in a ?
... we test our sites in Firefox, Safari, IE6, IE7 and Opera. These browsers all understand that URL format.
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What's the best practice for primary keys in tables?
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Just an extra comment on something that is often overlooked. Sometimes not using a surrogate key has benefits in the child tables. Let's say we have a design that allows you to run multiple companies within the one database (maybe it...
Any way to force strict mode in node?
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Beware, env will work with extra parameters like that on OSX, but not on Linux.
– AerandiR
Sep 13 '15 at 8:18
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Python set to list
... 9, 0]) )
It is very convenient approach if you have a set of numbers in string and you want to convert it to list of integers:
aList = map( lambda x: int(x), set (['1', '2', '3', '7', '12']) )
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How to interpolate variables in strings in JavaScript, without concatenation?
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You can take advantage of Template Literals and use this syntax:
`String text ${expression}`
Template literals are enclosed by the back-tick (` `) (grave accent) instead of double or single quotes.
This feature has been introduced in ES2015 (ES6).
Example
var a = 5;
var b = 10;
con...
Correct approach to global logging in Golang
...mport (
"log"
"os"
"sync"
)
type logger struct {
filename string
*log.Logger
}
var logger *logger
var once sync.Once
// start loggeando
func GetInstance() *logger {
once.Do(func() {
logger = createLogger("mylogger.log")
})
return logger
}
func createLogger...
How to prevent buttons from submitting forms
...Cannot remove any more rows');
}
}
Note the change: your original code extracted a HTML element from the jQuery set, and then tried to call a jQuery method on it - this threw an exception, resulting in the default behavior for the button.
FWIW, there's another way you could go with this... Wire...
Convert JSON to Map
...-databind/#5-minute-tutorial-streaming-parser-generator), you'd do:
Map<String,Object> result =
new ObjectMapper().readValue(JSON_SOURCE, HashMap.class);
(where JSON_SOURCE is a File, input stream, reader, or json content String)
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