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Using “label for” on radio buttons
When using the "label for" parameter on radio buttons, to be 508 compliant *, is the following correct?
3 Answers
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Django queries - id vs pk
...lash with the id() function (everywhere except variable names). The reason for this is that pk is a property which is 7 times slower than id since it takes time looking up pk attribute name in meta.
%timeit obj.id
46 ns ± 0.187 ns per loop (mean ± std. dev. of 7 runs, 10000000 loops each)
%timeit...
Alternate output format for psql
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You can also try \pset format wrapped (allowed formats are unaligned, aligned, wrapped, html, latex, troff-ms). If the display is narrow enough it will word wrap each column.
– Bryce
Apr 14 '13 at 23:05
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Finding duplicate values in MySQL
...Ds of the rows with duplicate values? Yes, you can do a new query matching for each duplicate value, but is it possible to simply list the duplicates?
– NobleUplift
Jul 24 '14 at 14:41
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How do you list the primary key of a SQL Server table?
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SELECT Col.Column_Name from
INFORMATION_SCHEMA.TABLE_CONSTRAINTS Tab,
INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE Col
WHERE
Col.Constraint_Name = Tab.Constraint_Name
AND Col.Table_Name = Tab.Table_Name
AND Constraint_Type = 'PRIMARY KEY'...
“Insert if not exists” statement in SQLite
...rs_id , lessoninfo_id ) in table bookmarks , only if both do not exist before in a row.
4 Answers
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How can I shift-select multiple checkboxes like GMail?
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You can call slice instead of using the for loop. It would look like this: "$('.chkbox').slice(min..., max... + 1).attr('checked', lastChecked.checked)"
– Matthew Crumley
Mar 18 '09 at 23:16
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Check whether an input string contains a number in javascript
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You can do this using javascript. No need for Jquery or Regex
function isNumeric(n) {
return !isNaN(parseFloat(n)) && isFinite(n);
}
While implementing
var val = $('yourinputelement').val();
if(isNumeric(val)) { alert('number'); }
else { alert('not num...
YouTube iframe API: how do I control an iframe player that's already in the HTML?
...want full support (eg event listeners / getters), have a look at Listening for Youtube Event in jQuery
As a result of a deep code analysis, I've created a function: function callPlayer requests a function call on any framed YouTube video. See the YouTube Api reference to get a full list of possible...
How to change identity column values programmatically?
... reinsert it with different identity.
Once you have done the insert don't forget to turn identity_insert off
set identity_insert YourTable OFF
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