This PR is implementing the another "result" function for the `$` (`selector`) function .

[PeterVoronov]

The new "result" function toArray() returns an array of strings which is an usual array with has all selected id's and you can apply all appropriate arrays methods to it. The reason of this PR - in some cases, you need to get the array of strings from the selector, instead of use the current each iterator. Moreover, the source data already presented as an array of strings, so you don't need to iterate it once more time. Changed files:

• lib/javascript.d.ts: updated declaration of $ - the `toArray() is added;
• lib/sandbox.js: implementation of the toArray() function;
• test/testFunctions.js: test added for the toArray() function;
• docs/en/javascript.md: documentation updates of the $ function description.

[klein0r]

Thank you! This could the replace the weird Array.prototype.slice.apply($('0_userdata.0.*')) logic in some Blockly code

[PeterVoronov]

Thank you! This could the replace the weird Array.prototype.slice.apply($('0_userdata.0.*')) logic in some Blockly code

You are always welcome!