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Extracting the last n characters from a ruby string
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You are missing .join - now it returns an array of strings. Instead it should be "123".split(//).last(5).join (Ruby 2.0.0)
– Pavel Nikolov
Jul 10 '13 at 13:47
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What’s the best way to reload / refresh an iframe?
...to reload an <iframe> using JavaScript. The best way I found until now was set the iframe’s src attribute to itself, but this isn’t very clean. Any ideas?
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What is the difference between “ is None ” and “ ==None ”
...mparison is implemented elementwise:
import numpy as np
a = np.zeros(3) # now a is array([0., 0., 0.])
a == None #compares elementwise, outputs array([False, False, False]), i.e. not boolean!!!
a is None #compares object to object, outputs False
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How to check if the URL contains a given string?
...gex way:
var matches = !!location.href.match(/franky/); //a boolean value now
Or in a simple statement you could use:
if (location.href.match(/franky/)) {
I use this to test whether the website is running locally or on a server:
location.href.match(/(192.168|localhost).*:1337/)
This checks...
How do I URl encode something in Node.js?
...uerystring.stringify() (in Nicolas' answer) seem to return an empty string now.
– brandonscript
May 13 '16 at 18:18
4
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Error : The service is invalid
...to clear the DerivedData as @AminNegm-Awad mentioned. I restarted IDE too, now it's all fine. Superb answer and comments!
– Vijay Kumar Kanta
Apr 10 '19 at 12:25
2
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Chained method calls indentation style in Python [duplicate]
... looked wrong 7 years ago when I wrote that. I would not have written that now, 7 years later, but neither am I going to go back and update all my old answers.
– Kirk Strauser
Sep 19 '18 at 21:26
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How to find the array index with a value?
..."rollnumber": 3,
"name": "amit",
"subject": "chemistry"
},
];
Now if we have a requirement to select a particular object in the array. Let us assume that we want to find index of student with name Tanmay.
We can do that by iterating through the array and comparing value at the given ke...
How can I check if a checkbox is checked?
... didn't check it! Let me check it for you.");
}
}
Your script doesn't know what the variable remember is. You need to get the element first using getElementById().
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Select last row in MySQL
...ata is ordered in the database files (for InnoDB at least), and the RDBMS knows where that data ends, and it can optimize order by id + limit 1 to be the same as reach the max(id)
Now the road less traveled is when you don't have an autoincremented primary key. Maybe the primary key is a natural ke...