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What is a method that can be used to increment letters?
...t() {
const r = [];
for (const char of this._nextId) {
r.unshift(this._chars[char]);
}
this._increment();
return r.join('');
}
_increment() {
for (let i = 0; i < this._nextId.length; i++) {
const val = ++this._nextId[i];
if (val >= this._chars.len...
Manually raising (throwing) an exception in Python
... How do I manually throw/raise an exception in Python?
Use the most specific Exception constructor that semantically fits your issue.
Be specific in your message, e.g.:
raise ValueError('A very specific bad thing happened.')
Don't raise generic exceptions
Avoid raising a generic Exception....
Linux command: How to 'find' only text files?
...an change the -print to a -print0 for piping into an xargs -0 or something if you are concerned about spaces (thanks for the tip, @lucas.werkmeister!)
Also the first dot is only necessary for certain BSD versions of find such as on OS X, but it doesn't hurt anything just having it there all the tim...
Entity Framework .Remove() vs. .DeleteObject()
...ntity as Deleted in the context. (It's EntityState is Deleted after that.) If you call SaveChanges afterwards EF sends a SQL DELETE statement to the database. If no referential constraints in the database are violated the entity will be deleted, otherwise an exception is thrown.
EntityCollection.Rem...
ng-repeat finish event
...sing directives might be all you need and b) there are a few ng-Repeat specific properties you can use to make your "on ngRepeat finished" event.
Specifically, if all you want is to style/add events to the whole of the table, you can do so using in a directive that encompasses all the ngRepeat elem...
'Contains()' workaround using Linq to Entities?
... TValue>> selector,
IEnumerable<TValue> collection
)
{
if (selector == null) throw new ArgumentNullException("selector");
if (collection == null) throw new ArgumentNullException("collection");
if (!collection.Any())
return query.Where(t => false);
ParameterExpressi...
Is there a difference between YES/NO,TRUE/FALSE and true/false in objective-c?
Simple question really; is there a difference between these values (and is there a difference between BOOL and bool)? A co-worker mentioned that they evaluate to different things in Objective-C, but when I looked at the typedefs in their respective .h files, YES/TRUE/true were all defined as 1 an...
What is the shortest function for reading a cookie by name in JavaScript?
...function(){
var cookies;
function readCookie(name,c,C,i){
if(cookies){ return cookies[name]; }
c = document.cookie.split('; ');
cookies = {};
for(i=c.length-1; i>=0; i--){
C = c[i].split('=');
cookies[C[0]] = C[1];
}
...
Check whether or not the current thread is the main thread
...
If you want a method to be executed on the main thread, you can:
- (void)someMethod
{
dispatch_block_t block = ^{
// Code for the method goes here
};
if ([NSThread isMainThread])
{
block();
...
Relationship between hashCode and equals method in Java [duplicate]
...hash tables, and hash buckets are a function of the object's .hashCode().
If you have two objects which are .equals(), but have different hash codes, you lose!
The part of the contract here which is important is: objects which are .equals() MUST have the same .hashCode().
This is all documented i...