Add similarterm for array

[Vaibhavdixit02]

[codecov-commenter]

Codecov Report

Attention: 5 lines in your changes are missing coverage. Please review.

Comparison is base (9975197) 75.68% compared to head (6dbab75) 17.47%.

Files	Patch %	Lines
src/arrays.jl	0.00%	5 Missing :warning:

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Additional details and impacted files

@@             Coverage Diff             @@
##           master     #991       +/-   ##
===========================================
- Coverage   75.68%   17.47%   -58.22%     
===========================================
  Files          28       28               
  Lines        3204     3319      +115     
===========================================
- Hits         2425      580     -1845     
- Misses        779     2739     +1960     

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[Vaibhavdixit02]

substitute with array expression as test