stdlib 314 assert 314 node-js 312 node 312 javascript 312 nodejs 312 util 311 utils 311 utility 311 utilities 311 assertion 311 is 287 check 282 validate 266 test 253 valid 206 type 192 isvalid 125 object 87 array 81 isarray 57 number 55 string 51 numeric 49 obj 47 typed array 45 typed-array 45 typed 43 primitive 36 has 30 property 30 prop 29 isnumber 28 istypedarray 27 integer 25 ndarray-like 23 ndarray 23 str 23 isnumeric 23 isndarray 23 own 22 isstring 21 int 21 equal 19 same 18 strict 17 prototype 16 isstrictequal 16 isequal 16 issame 16 proto 15 istyped 15 issamevalue 15 2d 14 inherited 14 matrix 13 ismatrix 13 double 13 in 13 isobject 12 isinteger 12 double-precision 12 collection 12 single-precision 12 array-like 12 writable 11 readable 11 square 10 float 10 single 10 environment 10 function 10 float64array 9 descriptor 9 float32array 9 uri 9 validation 9 complex64 9 complex128 9 runtime 9 float64 9 float32 9 url 8 isurl 8 isuri 8 complex64array 8 complex128array 8 buffer 8 symmetric 7 ieee754 7 err 7 symm 7 verify 7 negative 7 date 7 iserror 7 iserr 7 exception 7 uint8array 7 error 7