At this moment, my goal is to establish a block-scoped variable in JavaScript by utilizing the var keyword. I prefer not to utilize the let keyword due to compatibility issues with certain browsers in ecma6. Is there an optimal and universal method to achieve this?
Specifically, I need to implement this within a for loop, ensuring that a new scope is created with each iteration.
Implement a "block" structure using an IIFE as shown below:
(function () {
var y = "something";
// y is limited to this specific "block"
// block code
})()
To preserve scope within a for loop:
for (var j = 0; j < k; j++) {
(function (j) {
var y = "something";
// y is contained within this "block" only
// block code
})(j)
}
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