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One line if statement not working
....present? can you drop the '?'? ... don't worry. Found some code I had and tested it. The answer is 'no'
– Jay Killeen
Jan 21 '15 at 5:54
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PHP foreach change original array values
...ontroversial. I recommend not using it unless you know why you need it and test the results.
I would recommend doing the following:
foreach ($fields as $key => $field) {
if ($field['required'] && strlen($_POST[$field['name']]) <= 0) {
$fields[$key]['value'] = "Some error"...
Difference between FOR and AFTER triggers?
...DATE statement, the INSTEAD OF trigger then evaluates if the business rule test passes or not. If the business rule test passes, in order for the update to occur the INSTEAD OF trigger must explicitly invoke the UPDATE statement again.
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.rar, .zip files MIME Type
... name too. Here is how you could check if the file is a RAR or ZIP file. I tested it by creating a quick command line application.
<?php
if (isRarOrZip($argv[1])) {
echo 'It is probably a RAR or ZIP file.';
} else {
echo 'It is probably not a RAR or ZIP file.';
}
function isRarOrZip($f...
What is the difference between HashSet and List?
...(1) random access than can grow dynamically (think dynamic array). You can test containment in O(n) time (unless the list is sorted, then you can do a binary search in O(log n) time).
Maybe you can explain with an example in what cases HashSet<T> should be prefered against List<T>
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Fixing JavaScript Array functions in Internet Explorer (indexOf, forEach, etc.) [closed]
...}
if (!('every' in Array.prototype)) {
Array.prototype.every= function(tester, that /*opt*/) {
for (var i= 0, n= this.length; i<n; i++)
if (i in this && !tester.call(that, this[i], i, this))
return false;
return true;
};
}
if (!('some' i...
UINavigationController without navigation bar?
...stance of UINavigationController. Seems to work for me, but I only briefly tested it before posting this.
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How to delete migration files in Rails 3
...ust revert it on all environments it already ran (production, development, testing, staging, etc) before deleting its file. That's also why I wrote that it's safer to just create another migration to revert that old one, once it's already ran on production.
– Fábio Batista
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click() event is calling twice in jquery
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try $("#link_button").unbind(); or make a simple test to check how many times that code is read, if more than once...
– TheSystem
Jul 19 '11 at 10:59
3
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Issue with adding common code as git submodule: “already exists in the index”
... STEP 1: git rm -r --cached src/test/resources/ , STEP 2: removed existing resources directory to some other place , STEP 3: git submodule add add url_to_repo src/test/resources
– vikramvi
Jan 30 '17 at 11:41
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