| 12345678910 | import assertString from './util/assertString';import merge from './util/merge';var default_is_empty_options = {  ignore_whitespace: false};export default function isEmpty(str, options) {  assertString(str);  options = merge(options, default_is_empty_options);  return (options.ignore_whitespace ? str.trim().length : str.length) === 0;}
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