Use eval in a restricted scope [closed] - javascript

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OK, let me explain what I need:
I want the user to be able to eval his own valid JS/jQuery statements
Access to elements must be restricted - meaning: let's say object X should not be available, but object Y should.
How should I go about that?

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Javascript Regex for string containing more b's than a's [closed]

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I am trying to construct a regular expression in Javascript such that the string contains more b's than a's. Can contain other characters anywhere but b's have to be more than a's. Could anybody help?
Simplest route:
let moreAsThanBs = (str) => str.match(/a/ig).length > str.match(/b/ig).length;
console.log(moreAsThanBs("Are there more As than Bs in this sentence?"));
console.log(moreAsThanBs("Are there more As than BBBBBs in this sentence?"));

what does line of code mean: inputArray[0] [closed]

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I am trying to understand what it means when a code appears in between the brackets. I know that has something to do with an array.
In the case of "inputArray[0]", it is finding the value at index position 0 (the first element) in the array "inputArray".

[WebdriverIO][Typescript] Is it possible to get a custom variable from the browser window? [closed]

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Hi lets assume i have a custom variable in the browser."Custom variable" Is it possible to get it with webdriverIO with the browser.execute() method?
Yes, it's possible with js.
browser.execute("return a")
Here is the sample I tried in python using js which is equivalent to browser.execute.

What can xpath evaluate that querySelector can't? [closed]

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I've heard (XPath or querySelector?) that XPath (evaluate) can do everything that a CSS3 selector (querySelector) can and even more, but couldn't find what exactly "more" it can do, can you list what exactly is "more"?

How to store the dollar ($) to a variable in jQuery [closed]

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var name = '${tokenid}';
im trying to assign "${tokenid}" value to name variable
but after execution the variable contains nothing
how do i resolve it
I don't know what's the problem you encountered but here it works like charm -
http://jsfiddle.net/EdC9H/
You can put it in single or double quotes, both.

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