Type conversion is a big deal, but not anymore? Just use maps against a given array and them conversion shortcuts to simplify type conversion in Javascript.
Consider the below array -
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const nums = [1, 3, 5, 7, 9];
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We can convert the type to string using a map.
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const nums = [1, 3, 5, 7, 9];
const numsStr = nums.map(val => String(val));
console.log("numsStr: ", numsStr);
// [ '1', '3', '5', '7', '9' ]
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Since String by itself is a function, we can simplify the code further.
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const nums = [1, 3, 5, 7, 9];
const numsStr = nums.map(String);
console.log(numsStr);
// [ '1', '3', '5', '7', '9' ]
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Similarly, we can convert an array of strings to array of numbers.
Using concepts demonstrated earlier, we could have done -
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const numsStr = ["1", "3", "5", "7", "9"];
const nums = numsStr.map(Number);
console.log(nums);
// [ 1, 3, 5, 7, 9 ]
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.. and for Boolean type -
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const numsStr = ["1", "3", "5", "7", "9"];
const numsBool = numsStr.map(Boolean);
console.log(numsBool);
// [ true, true, true, true, true ]
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Also see
