大约有 30,000 项符合查询结果（耗时：0.0334秒） [XML]
if checkbox is checked, do this
...k",function(){
if(typeof(check_holder)=="undefined"){
//this means that it is the first time and the check is going to be checked
//do something
check_holder=1; //indicates that the is checked,it is in checked state
}
else if(check_holder==1){
//do...
How can I recover a lost commit in Git?
...f the current commit.
detached HEAD
If you are not on the latest commit - meaning that HEAD is pointing to a prior commit in history it's called detached HEAD.
On the command line, it will look like this - SHA-1 instead of the branch name since the HEAD is not pointing to the tip of the current br...
TypeScript: casting HTMLElement
...res that return the correct types for calls to getElementsByTagName.
This means you no longer need to use type assertions to change the type:
// No type assertions needed
var script: HTMLScriptElement = document.getElementsByTagName('script')[0];
alert(script.type);
...
What does it mean when MySQL is in the state “Sending data”?
What does it mean if the Mysql query:
2 Answers
2
...
How to get the insert ID in JDBC?
...
you mean BATCHID
– MoolsBytheway
Apr 3 '18 at 20:20
add a comment
|
...
What does mc:Ignorable=“d” mean in WPF?
What does mc:Ignorable="d" mean in WPF?
3 Answers
3
...
Is it possible to GROUP BY multiple columns using MySQL?
...
Yes, but what does grouping by more two columns mean? Well, it's the same as grouping by each unique pair per row. The order you list the columns changes the way the rows are sorted.
In your example, you would write
GROUP BY fV.tier_id, f.form_template_id
Meanwhile, th...
What does the question mark in Java generics' type parameter mean?
...
? extends HasWord
means "A class/interface that extends HasWord." In other words, HasWord itself or any of its children... basically anything that would work with instanceof HasWord plus null.
In more technical terms, ? extends HasWord is a ...
Pythonic way to create a long multi-line string
...
@200OK you mean after '?
– kon psych
Jun 15 '14 at 6:14
3
...
Add a reference column migration in Rails 4
...rential integrity; relational databases come to our rescue here. What that means is that we can add foreign key constraints at the database level itself and ensure that database would reject any operation that violates this set referential integrity. As @infoget commented, Rails 4.2 ships with nativ...