String.includes doesn't find substring

December 9, 2021

I have the following text:

 LOG: time="2021-12-09T16:55:25+01:00" level=debug msg="🎁  GetLatestBlock called" blockHeight=3 blockID=ee98016d268630db54b814d18d0127edac8cc36f90d193c0c6f5fd4909bbd8b1
    ,LOG: time="2021-12-09T16:55:25+01:00" level=debug msg="👤  GetAccountAtLatestBlock called" address=f8d6e0586b0a20c7
    ,LOG: time="2021-12-09T16:55:26+01:00" level=debug msg="️✉️   Transaction submitted" txID=5a46897e60f13ee68e11ef754983fefe9ec7bc8a2ca6079f0665e404138735e9
    ,LOG: time="2021-12-09T16:55:26+01:00" level=info msg="⭐  Transaction executed" computationUsed=6 txID=5a46897e60f13ee68e11ef754983fefe9ec7bc8a2ca6079f0665e404138735e9
    ,LOG: time="2021-12-09T16:55:26+01:00" level=debug msg="\x1b[1;34mLOG\x1b[0m \x1b[2m[5a4689]\x1b[0m \"Hello from Emulator\""
    time="2021-12-09T16:55:26+01:00" level=debug msg="\x1b[1;34mLOG\x1b[0m \x1b[2m[5a4689]\x1b[0m 0x1cf0e2f2f715450"
    time="2021-12-09T16:55:26+01:00" level=debug msg="\x1b[1;34mLOG\x1b[0m \x1b[2m[5a4689]\x1b[0m 0x179b6b1cb6755e31"
    time="2021-12-09T16:55:26+01:00" level=debug msg="📦  Block #4 committed" blockHeight=4 blockID=5fd780a98baad6d30f66cf75e76c3e1c9398097a9bb2e3f239f0cd7e166f6932
    ,LOG: time="2021-12-09T16:55:26+01:00" level=debug msg="📝  GetTransactionResult called" txID=5a46897e60f13ee68e11ef754983fefe9ec7bc8a2ca6079f0665e404138735e9

stored in a variable called transactionLogs (, so the output you see is console.log(transactionLogs)), which is a string.

I want to check if the transaction logs contain two addresses. One from Alice 0x01cf0e2f2f715450 and one from Bob 0x179b6b1cb6755e31.

My problem is that when I call includes like this (where Alice and Bob are strings):

Alice; // 0x01cf0e2f2f715450
Bob; // 0x179b6b1cb6755e31
transactionLogs.includes(Alice); // false
transactionLogs.includes(Bob); // true

the search for Alice returns false.

I assume it has something to do with escape backslashes, so I tried running transactionLogs.replace(String.fromCharCode(92), '') but that doesn’t change the result.

What is going on here? Why is includes not returning true for Alice?

>Solution :

Why is includes not returning true for Alice?

Because that string is not present in the log string:

const transactionLogs = `
 LOG: time="2021-12-09T16:55:25+01:00" level=debug msg="🎁  GetLatestBlock called" blockHeight=3 blockID=ee98016d268630db54b814d18d0127edac8cc36f90d193c0c6f5fd4909bbd8b1
    ,LOG: time="2021-12-09T16:55:25+01:00" level=debug msg="👤  GetAccountAtLatestBlock called" address=f8d6e0586b0a20c7
    ,LOG: time="2021-12-09T16:55:26+01:00" level=debug msg="️✉️   Transaction submitted" txID=5a46897e60f13ee68e11ef754983fefe9ec7bc8a2ca6079f0665e404138735e9
    ,LOG: time="2021-12-09T16:55:26+01:00" level=info msg="⭐  Transaction executed" computationUsed=6 txID=5a46897e60f13ee68e11ef754983fefe9ec7bc8a2ca6079f0665e404138735e9
    ,LOG: time="2021-12-09T16:55:26+01:00" level=debug msg="\x1b[1;34mLOG\x1b[0m \x1b[2m[5a4689]\x1b[0m \"Hello from Emulator\""
    time="2021-12-09T16:55:26+01:00" level=debug msg="\x1b[1;34mLOG\x1b[0m \x1b[2m[5a4689]\x1b[0m 0x1cf0e2f2f715450"
    time="2021-12-09T16:55:26+01:00" level=debug msg="\x1b[1;34mLOG\x1b[0m \x1b[2m[5a4689]\x1b[0m 0x179b6b1cb6755e31"
    time="2021-12-09T16:55:26+01:00" level=debug msg="📦  Block #4 committed" blockHeight=4 blockID=5fd780a98baad6d30f66cf75e76c3e1c9398097a9bb2e3f239f0cd7e166f6932
    ,LOG: time="2021-12-09T16:55:26+01:00" level=debug msg="📝  GetTransactionResult called" txID=5a46897e60f13ee68e11ef754983fefe9ec7bc8a2ca6079f0665e404138735e9
`;

const Alice = `0x01cf0e2f2f715450`;
const Bob = `0x179b6b1cb6755e31`;

console.log({
  Alice: transactionLogs.includes(Alice),
  Bob: transactionLogs.includes(Bob),
});