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If i have Full name coming as an input from the user without any spaces, how would i be able to differentiate first name and last name. The Full name for the input could be any name (generic input).
In the general case, you can't.
There are some things you might be able to do depending on what you receive. For instance, if you get "JohnSmith", then you can probably split them on the first uppercase character that isn't the first character of the string, but that could break in all kinds of ways —"ManueldelaVega", for instance, or "JOHNSMITH" or "mohammedibnabdul".
So again: In the general case, you can't.
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I have a simple Regex to match 'der' - /der/g
I need the context around the match. Is there any way to build the regex that way? Thank you in advance.
If you want to match the context plus the search string, simply add the optional range before and after the searched string: .{0,5}der.{0,5}
If you want to get the context only, you have to fetch it separately: (.{0,5})der(.{0,5})
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Friends in my ionic application API return data's are in Spanish language, I want to implement local search(sub string matching) in these data. Unfortunately accent/diacritics are does not match with normal character
Eg. 'María', here 'í' is different from normal 'i'
When I search using key word 'maria' i don't get the result.
How can I check 'í' is equal to 'i' and other characters.
Based on the answer of this question: Remove accents/diacritics in a string in JavaScript
I don't know how you are doing your search, but it's normal that you don't get any result with í and i, they don't have the same ASCII code.
What you can do during your search is replacing temporary all accents and diacritics in your search text and in your data text.
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how to include both digits and hyphens in javascript pattern. Like in phone number where user can add both digits and hyphens. No matter where is the hyphen.
The regular expression to make this is so simple. You can make something like this:
([0-9\-]+)
That means all numbers and hypen no matter where is. You can test it here:
https://regex101.com/r/eX3yA7/1
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I am building an application where I want to filter a returned collection based on a specific name, where the current Meteor.user().username always shows first in the returned list. I want to do something like this:
Lists.find({}, {sort : {user: Meteor.user().username}});
From input from #BatScream, I ended up doing two different querys. One where I looked for the specific username and a second where I looked for all others besides the user name. After I just combined the two querys.
Lists.find({user: Meteor.user().username});
&&
Lists.find({user: {$ne : Meteor.user().username});
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I would like to make a caching mechanism. I want to drop the last digit of the latitude and longitude for example :
look below how to make request. important things are the "lat" and "lon" values. There must be four digits after the full stop (also known as a period).
3 Request /v1/x/y/?lat=40.12225&lon=2.13422&radius=1&key=abc
caching look up: /v1/x/y/?lat=40.1222&lon=2.1342&radius=1&key=abc-> no match (look at lat=40.1222&lon=2.1342)
You can use the following regex to trim your strings to the correct format:
/(?:lat|lon)(=\d+\.\d{4})\d*/g then you replace with $1
Example:
var s = "/v1/x/y/?lat=40.12323&lon=2.13421&radius=1&key=abc"
s.replace(/((?:lat|lon)=\d+\.\d{4})\d*/g,"$1");
Output:
/v1/x/y/?lat=40.1232&lon=2.1342&radius=1&key=abc