How to use 'regex all symbols' in JavaScript

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84function filterSymbols(patterns, symbols, callback) {
85 let matches = [];
86
87 let lookup = {};
88 symbols.forEach(function(symbol) {
89 lookup[symbol.name] = symbol;
90 });
91
92 patterns.forEach(function(name) {
93 let match = false;
94 let pattern = (name.substr(-1) === '*');
95 if (pattern) {
96 name = name.substr(0, name.length - 1);
97 symbols.forEach(function(symbol) {
98 if (symbol.name.indexOf(name) === 0) {
99 matches.push(symbol);
100 match = true;
101 }
102 });
103 } else {
104 let symbol = lookup[name];
105 if (symbol) {
106 matches.push(symbol);
107 match = true;
108 }
109 }
110 if (!match) {
111 let message = 'No matching symbol found: ' + name + (pattern ? '*' : '');
112 callback(new Error(message));
113 }
114 });
115
116 callback(null, matches);
117}
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