first a.js:
var x;
exports.x = x;
console.log (x) / / 123
second b.js:
var a = require (". / a.js");
setTimeout (function () {console.log (a.x)}, 1000);
run b.js and output undefined,. Why? Haven"t you already been exposed?
first a.js:
var x;
exports.x = x;
console.log (x) / / 123
second b.js:
var a = require (". / a.js");
setTimeout (function () {console.log (a.x)}, 1000);
run b.js and output undefined,. Why? Haven"t you already been exposed?
where does a.js assign a value to x? Please post the complete code
you didn't assign a value to x. Why is there 123? Is there any other place to introduce
?
put aside the above two questions, then mine is right.
a.js does not assign x, and consolo.log (x) should be undefined
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