The String.includes method is unable to detect substrings within a string

Below is the text that I currently have:

 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

The above content is saved in a variable named transactionLogs. When I output this variable using console.log(transactionLogs), it appears as a string.

I aim to verify if the transaction logs contain two specific addresses. One belonging to Alice with ID 0x01cf0e2f2f715450 and another one for Bob with ID 0x179b6b1cb6755e31.

The issue arises when I utilize the includes method like this (assuming Alice and Bob are both strings):

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

Surprisingly, searching for Alice returns false. I suspect it has something to do with escaped backslashes, hence I tried running 

transactionLogs.replace(String.fromCharCode(92), '')
but it did not alter the outcome.

What is causing this behavior? Why does includes fail to return true for Alice?

javascriptarraystypescript

Answer №1

Why isn't Alice returning a true value for includes?

This is because the specific string related to Alice is not found in the log:

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),
});

Answer №2

It appears that the hex address you are looking for has been misprinted in the transaction log.

I suggest adjusting the transaction log logic to prevent cutting off the leading zeros when recording addresses.

If not, you will need to eliminate the leading zeros from the address you are trying to find using this code:

transactionLog.includes('0x' + parseInt(Alice, 16).toString(16))

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