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How can I check if a var is a string in JavaScript?
... Is it not possible to check if a variable is a string by simply testing for the presence of a member that only strings have? For example: if(myVar.toUpperCase) alert('I am a string');? See: jsfiddle.net/tb3t4nsx
– ingredient_15939
Mar 31 '15 at 15:39...
Is there a way to add/remove several classes in one single instruction with classList?
...HTMLElement.classList spec didn't allow multiple
// arguments, easy to test for
if (!dummy.classList.contains('class2')) {
dtp.add = function () {
Array.prototype.forEach.call(arguments, add.bind(this));
};
dtp.remove = function () {
Array.p...
Wait for a process to finish
...ect if the process is running to replace the kill -0 $pid call. On Linux, test -d "/proc/$pid" works, on other systems you might have to use pgrep (if available) or something like ps | grep "^$pid ".
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ie8 var w= window.open() - “Message: Invalid argument.”
...
I also meet this issue while I used the following code:
window.open('test.html','Window title','width=1200,height=800,scrollbars=yes');
but when I delete the blank space of the "Window title" the below code is working:
window.open('test.html','Windowtitle','width=1200,height=800,scrollbars=...
Java: Instanceof and Generics
... attempt to cast into E eg.
public int indexOf(Object arg0){
try{
E test=(E)arg0;
return doStuff(test);
}catch(ClassCastException e){
return -1;
}
}
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Are there inline functions in java?
...
+1, But how can we test whether the compiled version of a method is inlined?
– Pacerier
Sep 16 '14 at 8:11
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Checking if a SQL Server login already exists
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Tested, works, and more current than the other answers. +1 to you as well.
– David
Sep 4 '09 at 14:17
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Get IP address of visitors using Flask for Python
...mes you're not behind a reverse proxy, then this should be preferred. (I'd test this if I could easily set up a reverse proxy, but that would take more time than I have at the moment.)
– jpmc26
Aug 1 '14 at 23:32
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In an array of objects, fastest way to find the index of an object whose attributes match a search
...nexpected type conversion, so use the obj.id === 3 operator instead, which tests for equal value and type.
– thclark
Jul 3 '18 at 13:03
...
CSS triangle custom border color
...% 100%,90% 5%,100% 10%,90% 15%,90% 0%);
}
<div class="container">
test content
</div>
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