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How do I count unique values inside a list
...ict = {'a': 2, 'b': 1, 'c': 1} you can do count_dict = dict(Counter(words).items())
– Peter
Aug 4 at 19:32
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How to sum all the values in a dictionary?
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d = {'key1': 1,'key2': 14,'key3': 47}
sum1 = sum(d[item] for item in d)
print(sum1)
you can do it using the for loop
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How to iterate over array of objects in Handlebars?
...tion:
I re-structure my array of object like this:
let list = results.map((item)=>{
return { name:item.name, author:item.author }
});
and then in template file:
{{#each list}}
<tr>
<td>{{name }}</td>
<td>{{author}}</td>
</tr>
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Is there a Java reflection utility to do a deep comparison of two objects?
... completeness of a clone operation, it'll do the job pretty well. Your two best options are serialization and reflection.
Some issues you will encounter:
Collection order: Should two collections be considered similar if they hold the same objects, but in a different order?
Which fields to ignore...
How to validate inputs dynamically created using ng-repeat, ng-show (angular)
...ear, this answer not being selected, is not indicative of it not being the best answer. It was just posted almost 2 years after the question was originally asked. I would consider both this answer and tomGreen's in addition to the selected answer if you run into this same issue.
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When use getOne and findOne methods Spring Data JPA
...gy is really board and JPA API doesn't specify any getOne() method.
So the best thing to do to understand what the Spring wrapper does is looking into the implementation :
@Override
public T getOne(ID id) {
Assert.notNull(id, ID_MUST_NOT_BE_NULL);
return em.getReference(getDomainClass(), id...
What is HTML5 ARIA?
...lt;!-- Rule 2A: "File" label via aria-labelledby -->
<li role="menuitem" aria-haspopup="true" aria-labelledby="fileLabel"><span id="fileLabel">File</span>
<ul role="menu">
<!-- Rule 2C: "New" label via Namefrom:contents -->
<li role="menuitem" a...
What are all the differences between src and data-src attributes?
...oo.jpg" data-src="http://mydomain.com/foo.jpg">
<script>
var item = document.getElementById("myImage");
// switch the image to the URL specified in data-src
item.src = item.dataset.src;
</script>
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Can hash tables really be O(1)?
...s here, m and n, where m is the length of the input and n is the number of items in the hash.
The O(1) lookup performance claim makes at least two assumptions:
Your objects can be equality compared in O(1) time.
There will be few hash collisions.
If your objects are variable size and an equalit...
How to Sync iPhone Core Data with web server, and then push to other devices? [closed]
...ly. It's used by the app to determine if you have a pending change on the item. I use the following codes: 0 means no changes, 1 means it's queued to be synchronized to the server, and 2 means it's a temporary object and can be purged.
is_deleted - Add this to the server and core data model. Dele...