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how to understand re.match in python?


how to understand re.match in python?

By : Sokphy Chhov
Date : November 22 2020, 09:00 AM
it fixes the issue Groups are used to capture specific parts of a regular expression. Your regex does not define any groups, therefore the group count is zero.
group(0) is a special case, and it contains the entire match.
code :


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Regex - don't understand why there's no match

Regex - don't understand why there's no match


By : K.D Iresha
Date : March 29 2020, 07:55 AM
wish help you to fix your issue It's to do with your $ (assert position at end of line) - try and remove it and it should work fine.
Understand JS .match() work

Understand JS .match() work


By : Darshan Bhanushali
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further Hi i have next string and regexp:
code :
\d+(?=\))
Trying to understand identifiers and collections in MATCH and WHERE

Trying to understand identifiers and collections in MATCH and WHERE


By : Katie McAuliffe
Date : March 29 2020, 07:55 AM
this one helps. I think the easiest way to answer all these questions is by passing identifiers to functions that will throw an error telling you what it expected and what it actually received. I think you should also be careful about how you use the word collection, as it is not correct.
Nodes, Relationships, Paths
Don't really understand how to match two arrays

Don't really understand how to match two arrays


By : abdi
Date : March 29 2020, 07:55 AM
To fix this issue No, it is not correct in general. The reason is that you sort the products array, but you keep the prices array unmodified, so the products don't correspond to their prices in general, i.e. the index positions do not match.
code :
  private void getPrice(String s) {
    Arrays.sort(products);  <--- sort products, but prices' indices remain unchanged
    int searchedProductIndex = Arrays.binarySearch(products, s);
    if (searchedProductIndex >= 0) {
      this.price = prices[searchedProductIndex];
      this.isValidOrder = true;
    } else {
      price = 0.0;
      isValidOrder = false;
      message = "**ERROR**: Invalid product name";
    }
  }    <--- closing curly bracket
Cannot understand match in regex

Cannot understand match in regex


By : user1402940
Date : March 29 2020, 07:55 AM
this one helps. It matches. It just matches another time afterwards. Regex101 only shows the last matches
code :
Values\(((?<insertfield>"\w+"),\s*(?<insertvalue>(\w|[ .()])+),?\s*)+\)
((?<insertfield>"\w+"),\s*(?<insertvalue>(\w|[ .()])+),?\s*)+
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