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Regular Expression to reformat a US phone number in Javascript
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Assuming you want the format "(123) 456-7890":
function formatPhoneNumber(phoneNumberString) {
var cleaned = ('' + phoneNumberString).replace(/\D/g, '')
var match = cleaned.match(/^(\d{3})(\d{3})(\d{4})$/)
if (match) {
return '(' + match[1] + ') ' + match[2...
mysqldump - Export structure only without autoincrement
...t; --opt <db-name> -d --single-transaction | sed 's/ AUTO_INCREMENT=[0-9]*\b//' > <filename>.sql
As mentioned by others, If you want sed to works properly, add the g (for global replacement) parameter like this :
mysqldump -u root -p -h <db-host> --opt <db-name> -d --s...
iTerm2 keyboard shortcut - split pane navigation
...ael BerkowskiMichael Berkowski
246k3636 gold badges408408 silver badges359359 bronze badges
65
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Why is “while ( !feof (file) )” always wrong?
... n = fread(buf, 1, bufsize, infile);
consume(buf, n);
if (n == 0) { break; }
}
The result we must use is n, the number of elements that were read (which may be as little as zero).
C stdio, scanf:
for (int a, b, c; scanf("%d %d %d", &a, &b, &c) == 3; ) {
consume(...
How to check for an undefined or null variable in JavaScript?
...n converted to a boolean, evaluates to false. So, if you don't care about
0 and false, using if(obj.undefProp) is ok. There's a common idiom based on this fact:
value = obj.prop || defaultValue
which means "if obj has the property prop, assign it to value, otherwise assign the default value defa...
MYSQL OR vs IN performance
...ir "opinion", science is all about testing and evidence.
I ran a loop of 1000x the equivalent queries (for consistency, I used sql_no_cache):
IN: 2.34969592094s
OR: 5.83781504631s
Update:
(I don't have the source code for the original test, as it was 6 years ago, though it returns a result in th...
Is it possible to change a UIButtons background color?
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160
This can be done programmatically by making a replica:
loginButton = [UIButton buttonWithType:U...
Maven Could not resolve dependencies, artifacts could not be resolved
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edited Sep 4 '19 at 22:10
answered Jan 10 '11 at 19:13
wm...
Generate pdf from HTML in div using Javascript
...urn true;
}
};
var source = window.document.getElementsByTagName("body")[0];
doc.fromHTML(
source,
15,
15,
{
'width': 180,'elementHandlers': elementHandler
});
doc.output("dataurlnewwindow");
For me this created a nice and tidy PDF that only included the line 'print th...
jquery - fastest way to remove all rows from a very large table
...ht this might be a fast way to remove the contents of a very large table (3000 rows):
8 Answers
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