Vue API should be called with arguments of correct types

• VUE_MISMATCHED_TYPE_OF_ARG
• Error
• Medium
• cwe, vue

This rule applies when Vue API is called with arguments of wrong types.

Because Vue API has the specification for its arguments, Vue will throw an error or output a warning message if the types of arguments are wrong.

Noncompliant Code Example

<script>
export default {
  mounted() {
    // VUE_MISMATCHED_TYPE_OF_ARG alarm because the first argument's type of '$watch()' should be string or function.
    this.$watch(123, function (newVal, oldVal) {
      // do something
    });
  }
}
</script>

Compliant Code Example

<script>
export default {
  mounted() {
    this.$watch('123', function (newVal, oldVal) {
      // do something
    });
  }
}
</script>

Version

This rule was introduced in DeepScan 1.14.0-beta.

See

• CWE-628

• Vue Global API

• Vue instance methods about data

• Vue instance methods about events

• Vue instance methods about lifecycle