大约有 44,000 项符合查询结果（耗时：0.0685秒） [XML]
Checking if jquery is loaded using Javascript
I am attempting to check if my Jquery Library is loaded onto my HTML page. I am checking to see if it works, but something is not right. Here is what I have:
...
If statement in aspx page
I want to write a basic if statement on my site to display either item 1 or item 2 depending on if a variable is set to true.
...
jquery if div id has children
This if -condition is what's giving me trouble:
7 Answers
7
...
jQuery.inArray(), how to use it right?
...ay returns the index of the element in the array, not a boolean indicating if the item exists in the array. If the element was not found, -1 will be returned.
So, to check if an item is in the array, use:
if(jQuery.inArray("test", myarray) !== -1)
...
How to find if a given key exists in a C++ std::map
I'm trying to check if a given key is in a map and somewhat can't do it:
14 Answers
14...
How to check if an array value exists?
How can I check if $something['say'] has the value of 'bla' or 'omg' ?
12 Answers
...
How to convert a Hibernate proxy to a real entity object
...using.
public static <T> T initializeAndUnproxy(T entity) {
if (entity == null) {
throw new
NullPointerException("Entity passed for initialization is null");
}
Hibernate.initialize(entity);
if (entity instanceof HibernateProxy) {
entity = (T) (...
xpath find if node exists
Using a xpath query how do you find if a node (tag) exists at all?
6 Answers
6
...
How to check if function exists in JavaScript?
...
Try something like this:
if (typeof me.onChange !== "undefined") {
// safe to use the function
}
or better yet (as per UpTheCreek upvoted comment)
if (typeof me.onChange === "function") {
// safe to use the function
}
...
Evaluate empty or null JSTL c tags
How can I validate if a String is null or empty using the c tags of JSTL ?
8 Answers
...