const regex = new RegExp('string_value:(?=(?:(?!attributes_cache).)*name: last_name)\\s+\\"(\\w+)\\".*?attributes_cache', 'gms')
const str = `\\- !ruby/object:DynamicAttribute
attributes:
resource_id: "1"
resource_type: Applicant
string_value: "Johnson1"
int_value:
id: "35533149"
date_value:
name: last_name
attributes_cache: {}
\\- !ruby/object:DynamicAttribute
attributes:
resource_id: "1"
resource_type: Applicant
string_value: "Michael"
int_value:
id: "35972390"
date_value:
name: first_name
attributes_cache: {}
\\- !ruby/object:DynamicAttribute
attributes:
resource_id: "1"
resource_type: Applicant
string_value: "Johnson2"
int_value:
id: "35533149"
date_value:
name: last_name
attributes_cache: {}`;
// Reset `lastIndex` if this regex is defined globally
// regex.lastIndex = 0;
let m;
while ((m = regex.exec(str)) !== null) {
// This is necessary to avoid infinite loops with zero-width matches
if (m.index === regex.lastIndex) {
regex.lastIndex++;
}
// The result can be accessed through the `m`-variable.
m.forEach((match, groupIndex) => {
console.log(`Found match, group ${groupIndex}: ${match}`);
});
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for JavaScript, please visit: https://developer.mozilla.org/en/docs/Web/JavaScript/Guide/Regular_Expressions