convert string to double flutter

// String -&gt; double
main () {
    var onePointOne = double.parse('1.1');
    print(onePointOne == 1.1); // prints true
}

 var long2 = double.parse("STRING");

// String -&gt; double
main () {
    var onePointOne = double.parse('1.1');
    print(onePointOne == 1.1); // prints true
}

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