Use of reserved word 'let' in strict mode · Issue #63 · dialogflow/dialogflow-javascript-client · GitHub
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javascript - Jest test on typescript file syntax error: "interface is a reserved word in strict mode" - Stack Overflow
SyntaxError: Use of reserved word 'import'` when using ES6 with Babel · Issue #129 · codymikol/karma-webpack · GitHub
PhantomJS: SyntaxError: Use of reserved word 'import' · Issue #162 · monounity/karma-typescript · GitHub
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