Concatenate string to string array in efficient way

Question

0 个投票

Hey,

Is there any efficient way to concatenate string to string array in such way that i get from this strings:

strStart = '_';
strMsgArray = {"Ab", "Ac", "Ad"};
strEnd = 'x_';

this result:

strMsgArray = {"_Abx_", "_Acx_","_Adx_"};

They way im doing it atm is with a for-loop, but its not very efficient if size(strMsgArray,2) is large

My approach:

for k=size(strMsgArray,2)
    strMsgArray{k} = strjoin({strStart,strMsgArray{k},strEnd});
end

Afterwards I'm using it to check if any of this Expressions are in other string:

x = cellfun(@(X)~isempty(regexpi(cellFileslist{dat},X)),strMsgArray);

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Answer 1

Jeff Miller 2020-5-20

0 个投票

strMsgArray = strcat(strStart,strMsgArray,strEnd)

Mate D 2020-5-20

Thanks :) Way more efficient! Thought strjoin and strcat act the same, thats why I did not used it.