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[String.prototype.substr()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/substr) is deprecated so we replace it with [String.prototype.slice()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/slice) which works similarily but isn't deprecated. .substr() probably isn't going away anytime soon but the change is trivial so it doesn't...

refactor: replace deprecated String.prototype.substr()

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[String.prototype.substr()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/substr) is deprecated so we replace it with [String.prototype.slice()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/slice) which works similarily but isn't deprecated. .substr() probably isn't going away anytime soon but the change is trivial so it doesn't...

**What kind of change does this PR introduce?** - refactor **More information:** [String.prototype.substr()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/substr) is deprecated so we replace it with [String.prototype.slice()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/slice) which works similarily but isn't deprecated. .substr() probably isn't...

[String.prototype.substr()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/substr) is deprecated so we replace it with [String.prototype.slice()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/slice) which works similarily but isn't deprecated. .substr() probably isn't going away anytime soon but the change is trivial so it doesn't...

[String.prototype.substr()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/substr) is deprecated so we replace it with [String.prototype.slice()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/slice) which works similarily but isn't deprecated. .substr() probably isn't going away anytime soon but the change is trivial so it doesn't...

chore: replace deprecated String.prototype.substr()

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[String.prototype.substr()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/substr) is deprecated so we replace it with [String.prototype.slice()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/slice) which works similarily but isn't deprecated. .substr() probably isn't going away anytime soon but the change is trivial so it doesn't...

[String.prototype.substr()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/substr) is deprecated so we replace it with [String.prototype.slice()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/slice) which works similarily but isn't deprecated. .substr() probably isn't going away anytime soon but the change is trivial so it doesn't...

[String.prototype.substr()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/substr) is deprecated so we replace it with [String.prototype.slice()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/slice) which works similarily but isn't deprecated. .substr() probably isn't going away anytime soon but the change is trivial so it doesn't...

refactor: replace deprecated String.prototype.substr()

1

### 🤔 What is the nature of this change? - [ ] New feature - [ ] Fix bug - [ ] Style optimization - [ ] Code style optimization...

[String.prototype.substr()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/substr) is deprecated so we replace it with [String.prototype.slice()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/slice) which works similarily but isn't deprecated. .substr() probably isn't going away anytime soon but the change is trivial so it doesn't...