5 or this: Be sure to run the code after the element is created, or use jQuery code: “Uncaught TypeError: Cannot read property ‘setAttribute’ of null” By: LazarusRising—in that case, the element doesn’t exist yet in the document. You need to run the code after the element is created, say after the load event or … Read more
The best place to find answers to general (and somewhat easy questions) such as this is to read up on PHP docs. Specifically in your case you can read more on objects. You can store stdObject and instantiated objects within an array. In fact, there is a process known as ‘hydration‘ which populates the member … Read more
What is the difference between an Instance and an Object? Is there a difference or not?
Move them to an array, sort that array, and then use that array for your purposes. Here’s a solution: Once you have the array, you could rebuild the object from the array in the order you like, thus achieving exactly what you set out to do. That would work in all the browsers I know … Read more
The Arrays class has versions of sort() and binarySearch() which don’t require a Comparator. For example, you can use the version of Arrays.sort() which just takes an array of objects. These methods call the compareTo() method of the objects in the array.
If you want to avoid external libraries, you can concisely implement a vanilla version of groupBy() like so: Expand snippet
You can use Array.sort. Here’s an example: Expand snippet
Do nothing. Your reference (obj) will go out of scope. Then the Garbage Collector will come along and destroy your object. If there are (unmanaged) resources that need to be destroyed immediately, then implement the IDisposable interface and call Dispose in the finalize block. Or better, use the using statement. EDIT As suggested in the … Read more
It seems wrong to me to set up an if/else statement just to use the else portion… Just negate your condition, and you’ll get the else logic inside the if:
How about with some es6 magic? Reference URL A more generic solution would be: Using the above property strategy instead of JSON.stringify: You can add a wrapper if you want the propNames property to be either an array or a value: allowing both getUniqueItemsByProperties(‘a’) and getUniqueItemsByProperties([‘a’]); Stackblitz Example Explanation Start by understanding the two methods used: filter, findIndex Next take your idea of what … Read more