I have this code below...
if (x == 0) {
$("#scenariotitle").val('');
$("#scenariosuffix").val('');
}
...which works fine. However, that list will grow to about 5 more jquery selects.
Is there a way to store them into an array and then use the .val('') function on all the elements in the array? If that is possible, will it be more ef开发者_JAVA技巧ficient? Should I just stick to listing them out individually if the list is not greater than 10?
EDIT: I have decided to use this...
$("#scenariotitle, #scenariosuffix, #scenariosuffix, #scenariosuffix").val("");
...which is why I accepted the answer below. However, there is a very good discussion in the comments, and other answers provided, on how to properly use a jquery array selector.
You can concat multiple selectors into one statement:
selector #1, selector #2, selector #3
$("#scenariotitle, #scenariosuffix, #scenariosuffix, #scenariosuffix").val("");
Of course you could use an array but it's quite pointless in this case:
var selectors = [ "selector #1", "selector #2", "selector #n" ];
for (var i=0; i<selectors.length; i++) {
$(selectors[i]).val("");
}
You can store the selectors in an array, then combine them for use if you wanted, like this:
var selectors = ["#scenariotitle", "#scenariosuffix"];
$(selectors.join(", ")).val("");
This takes the array then using .join()
turns it into a multiple selector (comma separated) to grab all the elements at once.
Crozin has already mentioned a good way to reset based on the IDs so I won't repeat his solution. Another option that you can consider would be using a class selector.
If your HTML looked like this:
<input type='text' name='scenariotitle' class='resettable' />
<input type='text' name='scenariosuffix' class='resettable' />
<input type='text' name='scenariosomething' class='resettable' />
<input type='text' name='scenarioagain' class='resettable' />
Then you can have this:
$(".resettable").val("");
Adding an extra case to what Crozin wrote (which is all correct). If you need to accrue the list over time, just add them to a jQuery object.
var blankList = $();
...
blankList = blankList.add('#scenarioTitle');
...
blankList = blankList.add('#scenarioSuffix, #secondSuffix');
...
if (x == 0) {
blankList.val('');
}
精彩评论