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how to prevent “directory already exists error” in a makefile when using mkdir
...s:
mkdir -p $(OBJDIR)
The -p option to mkdir prevents the error message if the directory exists.
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Convert Array to Object
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Just want to point out - if you already have an array of sorted properties from the original object, using the spread operator is what will turn that array directly into a new object: { ...[sortedArray]}
– HappyHands31
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How to wait for the 'end' of 'resize' event and only then perform an action?
...var delta = 200;
$(window).resize(function() {
rtime = new Date();
if (timeout === false) {
timeout = true;
setTimeout(resizeend, delta);
}
});
function resizeend() {
if (new Date() - rtime < delta) {
setTimeout(resizeend, delta);
} else {
time...
Python dictionary: are keys() and values() always the same order?
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Found this:
If items(), keys(), values(),
iteritems(), iterkeys(), and
itervalues() are called with no
intervening modifications to the
dictionary, the lists will directly
correspond.
On 2.x documentation and 3.x documentatio...
Grep characters before and after match?
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What's the significance of the first number in the curly-bracketed pairs? Like the 0s in "grep -E -o ".{0,5}test_pattern.{0,5}" test.txt "?
– Lew Rockwell Fan
Jun 23 '17 at 2:28
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How to achieve function overloading in C?
... argument)
opengl style functions (type in function name)
c subset of c++ (if You can use a c++ compiler)
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jQuery UI Sortable Position
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You can use the ui object provided to the events, specifically you want the stop event, the ui.item property and .index(), like this:
$("#sortable").sortable({
stop: function(event, ui) {
alert("New position: " + ui.item.index());
}
});
You can see a working d...
How to change the foreign key referential action? (behavior)
... @Noumenon RESTRICT is the default so you get that when not specifying.
– edruid
Jan 11 '18 at 14:17
1
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Passing base64 encoded strings in URL
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There are additional base64 specs. (See the table here for specifics ). But essentially you need 65 chars to encode: 26 lowercase + 26 uppercase + 10 digits = 62.
You need two more ['+', '/'] and a padding char '='. But none of them are url friendly, so just use different chars for th...
Ruby: Change negative number to positive number?
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my answer is just for negative numbers, if you need to always have the absolute value then this is definitely the better way.
– Brandon Bodnar
Mar 19 '10 at 22:41
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