es-x/no-string-prototype-trimstart-trimend 
disallow the
String.prototype.{trimStart,trimEnd}methods
- ✅ The following configurations enable this rule: no-new-in-es2019, restrict-to-es3, restrict-to-es5, restrict-to-es2015, restrict-to-es2016, restrict-to-es2017, and restrict-to-es2018
 
This rule reports ES2019 String.prototype.{trimStart,trimEnd} methods as errors.
This rule is silent by default because it's hard to know types. You need to configure the aggressive mode or TypeScript in order to enable this rule.
💡 Examples 
⛔ Examples of incorrect code for this rule:
🔧 Options 
This rule has an option.
jsonc
{
  "rules": {
    "es-x/no-string-prototype-trimstart-trimend": [
      "error",
      {
        "aggressive": false,
        "allowTestedProperty": false
      }
    ]
  }
}aggressive: boolean 
Configure the aggressive mode for only this rule. This is prior to the settings['es-x'].aggressive setting.
allowTestedProperty: boolean 
Configure the allowTestedProperty mode for only this rule. This is prior to the settings['es-x'].allowTestedProperty setting.
🚀 Version 
This rule was introduced in eslint-plugin-es v5.0.0.