Collection of useful JS functions

just.range(start, end, step)

Create array containing arithmetic progressions. If the step argument is omitted, it defaults to 1. If the start argument is omitted, it defaults to 0. In case of invalid argument empty array will be returned.

example

just.dataGenerator.range(4,15,2);

returns

[4,6,8,10,12,14]

just.rrange(valuesRange, lengthRange)

Create array of random length withing given scope with random integer values withing given scope. Values of params can be number or array in other case default will be [0,10] for both params

example

just.dataGenerator.rrange([10, 150], [5,10]);

returns

array of 5-10 elements where each value is between 10-150 eg. [12, 99, 29, 136, 71, 100]

just.orange(template, length)

Create array of objects based on provided template

example

 var template = {
 	value: [10,1,2],
 	name: ['ten ','one','two']
 }

just.dataGenerator.orange(template, 3);

returns

[ { value: 10, name: 'ten'}, { value: 1, name: 'one'}, { value: 2, name: 'two'}]

just.arrayShuffle(arr)

Array shuffle with Fisher-Yates algorithm

example

just.dataGenerator.arrayShuffle([5, 10, 12]);

returns

[10, 5, 15]