大约有 20,000 项符合查询结果（耗时：0.0280秒） [XML]
Using an if statement to check if a div is empty
....is().
if( $('#leftmenu').is(':empty') ) {
// ...
Or you could just test the length property to see if one was found.
if( $('#leftmenu:empty').length ) {
// ...
Keep in mind that empty means no white space either. If there's a chance that there will be white space, then you can use $.t...
Disable orange outline highlight on focus
...ase works for Android from v2.3 to v4.x even in a PhongeGap application. I tested it on Galaxy Y with Android 2.3.3, on Nexus 4 with Android 4.2.2 and on Galaxy Note 2 with Android 4.1.2. So don't define it for states only for the element itself.
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How to join two sets in one line without using “|”
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@Alvaro @nitely according to a simple test: a = set((1, 2, 3,)); b = set((1, 3, 4,)); id_a = id(a); a |= b; assert id_a == id(a), @jorgenkg is right - variable a is modified inline. Am I missing something?
– johndodo
Jan 7 '...
How to make type=“number” to positive numbers only
...nother solution to prevent negative number.
<input type="number" name="test_name" min="0" oninput="validity.valid||(value='');">
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How do I check if I'm running on Windows in Python? [duplicate]
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@AndiJay - yes, but should be easy enough to test!
– Martin Beckett
Apr 18 '14 at 17:42
25
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jQuery hasClass() - check for more than one class
...matched elements to those that match the selector or
pass the function's test.
$(selector).filter('.class1, .class2'); //Filter elements: class1 OR class2
$(selector).filter('.class1.class2'); // Filter elements: class1 AND class2
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Wildcards in jQuery selectors
...guess with the the more recent releases of jquery (i.e. 1.9) and how the latest changes to attributes and properties are hanlded, the line is slightly blurred with respect to the two and so your able to use the attribute selectors for (at least some) properties.
– johntrepreneu...
Pass parameters in setInterval function
...nt 6
//here we are passing 1,2,3 for a,b,c arguments
// tested in node v 8.11 and chrome 69
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Javascript - Open a given URL in a new tab by clicking a button
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Works as required (tested on chrome, firefox, IE10) :)
– Zeeshan
Sep 14 '13 at 4:44
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How can I check the extension of a file?
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import os
source = ['test_sound.flac','ts.mp3']
for files in source:
fileName,fileExtension = os.path.splitext(files)
print fileExtension # Print File Extensions
print fileName # It print file name
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