无法读取未定义的属性（读取
TypeError：无法读取未定义的属性（读取“相等”），也无法在松露控制台中读取候选人的数量时也是不确定的。命令（.candidatesCount（）。tonumber）有什么problme吗？
const { assert } = require("assert");
var Election = artifacts.require("./Election.sol");
contract("Election", function (acc) {
it("initializes with two candidates", function () {
return Election.deployed()
.then(function (ins) {
return ins.candidatesCount();
})
.then(function (count) {
assert.equal(count, 2);
});
});
});
TypeError: Cannot read properties of undefined (reading 'equal') and also in truffle console when i try to see the number of candidates it is also undefined. is there any problme with the command (.candidatesCount().toNumber)?
const { assert } = require("assert");
var Election = artifacts.require("./Election.sol");
contract("Election", function (acc) {
it("initializes with two candidates", function () {
return Election.deployed()
.then(function (ins) {
return ins.candidatesCount();
})
.then(function (count) {
assert.equal(count, 2);
});
});
});
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const assert = require（“ assert”）;为什么要导入名称值？那是导致问题的原因
const assert = require("assert");Why import a name value? That's whats causing the issue
sustert被默认导出（module.exports = function assert（）{...}）导出，因此您需要相应地导入它。assertgets exported with a default export (module.exports = function assert() {...}) so you need to import it accordingly.