String Append vs Array Push

JavaScript performance comparison

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Test Ops/sec
String Append 1 char
 
str = "";
for(var i = 0; i <= 1000000; i++) {
  str += "f";
}
 pending…
Array Push
 
array = [];
for(var i = 0; i <= 1000000; i++) {
  array.push("f");
}
array.join("");
 pending…
String Append 10 chars
 
str = "";
for(var i = 0; i <= 100000; i++) {
  str += "0123456789";
}
 pending…
Array Push 10 chars
 
array = [];
for(var i = 0; i <= 100000; i++) {
  array.push("0123456789");
}
array.join("");
 pending…

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