大约有 5,475 项符合查询结果（耗时：0.0323秒） [XML]
How Can I Set the Default Value of a Timestamp Column to the Current Timestamp with Laravel Migratio
... $table->string('email', 255);
$table->string('given_name', 100);
$table->string('family_name', 100);
$table->timestamp('joined');
$table->enum('gender', ['male', 'female', 'unisex'])->default('unisex');
$table->string('timezone', 30)->...
Pandas index column title or name
...
JeffJeff
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Where to place JavaScript in an HTML file?
Say I have a fairly hefty JavaScript file, packed down to roughly 100kb or so. By file I mean it’s an external file that would be linked in via <script src="..."> , not pasted into the HTML itself.
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Why is it slower to iterate over a small string than a small list?
...remarkably fast.
>>> python3 -m timeit '[x for x in "abc"]'
1000000 loops, best of 3: 0.388 usec per loop
>>> python3 -m timeit '[x for x in ["a", "b", "c"]]'
1000000 loops, best of 3: 0.436 usec per loop
This disagrees with what you've found...
You must be using Python 2...
How can I generate a unique ID in Python? [duplicate]
...)
id3 = next(unique_sequence)
ids = list(itertools.islice(unique_sequence, 1000))
no two returned id is the same (Unique) and this is based on a randomized seed value
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jquery input select all on focus
...is);
window.setTimeout (function(){
save_this.select();
},100);
});
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Is it pythonic to import inside functions?
...available, the maximum module length would have to be one screen (probably 100 lines max). And that would probably be too short to be practical in most cases.
– codeape
Jun 22 '09 at 9:26
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Keeping ASP.NET Session Open / Alive
...ssion alive:
function setHeartbeat() {
setTimeout("heartbeat()", 5*60*1000); // every 5 min
}
function heartbeat() {
$.get(
"/SessionHeartbeat.ashx",
null,
function(data) {
//$("#heartbeat").show().fadeOut(1000); // just a little "red flash" in the corne...
how to schedule a job for sql query to run daily?
...99991231, --YYYYMMDD (this represents no end date)
@active_start_time=010000, --HHMMSS
@active_end_time=235959; --HHMMSS
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C dynamically growing array
...
int i;
initArray(&a, 5); // initially 5 elements
for (i = 0; i < 100; i++)
insertArray(&a, i); // automatically resizes as necessary
printf("%d\n", a.array[9]); // print 10th element
printf("%d\n", a.used); // print number of elements
freeArray(&a);
...