Current File : /var/www/html/node_modules/jsx-ast-utils/src/values/expressions/LogicalExpression.js
/**
* Extractor function for a LogicalExpression type value node.
* A logical expression is `a && b` or `a || b`, so we evaluate both sides
* and return the extracted value of the expression.
*
* @param - value - AST Value object with type `LogicalExpression`
* @returns - The extracted value converted to correct type.
*/
export default function extractValueFromLogicalExpression(value) {
// eslint-disable-next-line global-require
const getValue = require('.').default;
const { operator, left, right } = value;
const leftVal = getValue(left);
const rightVal = getValue(right);
if (operator === '&&') {
return leftVal && rightVal;
}
if (operator === '??') {
// return leftVal ?? rightVal; // TODO: update to babel 7
return (leftVal === null || typeof leftVal === 'undefined') ? rightVal : leftVal;
}
return leftVal || rightVal;
}
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