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How to drop columns using Rails migration
...ot change, as explained in the answer by @Powers.
– XåpplI'-I0llwlg'I -
Aug 30 '13 at 5:32
7
@X...
How to check whether a string is a valid HTTP URL?
... answered Nov 2 '14 at 14:12
Erçin DedeoğluErçin Dedeoğlu
3,21944 gold badges3434 silver badges5656 bronze badges
...
How can I uninstall an application using PowerShell?
Is there a simple way to hook into the standard ' Add or Remove Programs ' functionality using PowerShell to uninstall an existing application ? Or to check if the application is installed?
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JavaScript query string [closed]
...=t%20e%20x%20t&e=http%3A%2F%2Fw3schools.com%2Fmy%20test.asp%3Fname%3Dståle%26car%3Dsaab"
> queryDict
a: ["1", "5", "t e x t"]
b: ["2"]
c: ["3"]
d: [undefined]
e: [undefined, "http://w3schools.com/my test.asp?name=ståle&car=saab"]
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TypeScript and field initializers
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6½ years later I forgot this, but I still like it. Thanks again.
– PRMan
Nov 5 '19 at 18:36
add a c...
Is it possible to hide extension resources in the Chrome web inspector network tab?
...hy -f works here? What is it actually doing?
– coryvb123
Jul 18 '18 at 17:23
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show 8 more comments
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How to grep Git commit diffs or contents for a certain word?
In a Git code repository I want to list all commits that contain a certain word. I tried this
8 Answers
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javascript regex - look behind alternative?
...ust converted this: (?<!barna)(?<!ene)(?<!en)(?<!erne) (?:sin|vår)e?(?:$| (?!egen|egne)) to (?!barna).(?!erne).(?!ene).(?!en).. (?:sin|vår)e?(?:$| (?!egen|egne)) which does the trick for my needs. Just providing this as another "real-world" scenario. See link
– Ei...
Get loop counter/index using for…of syntax in JavaScript
... both the value and the index to the function you give it:
var myArray = [123, 15, 187, 32];
myArray.forEach(function (value, i) {
console.log('%d: %s', i, value);
});
// Outputs:
// 0: 123
// 1: 15
// 2: 187
// 3: 32
Or ES6’s Array.prototype.entries, which now has support across current ...
Check whether a path is valid in Python without creating a file at the path's target
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tl;dr
Call the is_path_exists_or_creatable() function defined below.
Strictly Python 3. That's just how we roll.
A Tale of Two Questions
The question of "How do I test pathname validity and, for valid pathnames, the existence or writability of those paths?" is ...