You could use an object like this.
var obj = {};
var name="jayesh";
obj[name] = 'some value';
var myvalue = obj.jayesh;
You can create a global variable like this:
var name="jayesh";
window[name] = 'some value';
You can also use eval but this can cause security issues so use with caution!
var name="jayesh";
var evalString = 'var ' + name + ' = "some value"';
eval(evalString);
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solved How to dynamically create JavaScript variable based on string value? [closed]