jotting

《NOTE》：Twenty Nineteen

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Take Notes Quickly, Get Off Early

May

JavaScript

Naming 命名規則

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// Function
(X) CheckValidToken
(O) chkToken

// Bool
(X) TokenValid
(O) isTokenValid
(O) isXXX...

// Constant
(O) IS_VALID

// Array
(O) policyItems
(O) Policys
(O) 
// Variable
(O) countPolicys

//

Bash

複製 Output

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echo "Hello world" | pbcopy
# "Hello world" is now in your clipboard

Linux

檢索 Systemd 日誌 - Journalctl

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journalctl -f --no-pager -n 50 -u <service>

# -u By Unit 
# see messages logged by any systemd unit

# -f Follow
# To run journalctl like the Linux tail command so it continuously prints log messages as they are added

# --no-pager
# tell it to not use a pager

# -n <number>
# printing the last number

June

JavaScript

React

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this.setState(({ PolicyReview }) => ({
      PolicyReview: {
        ...PolicyReview,
        listHistory: PolicyReview.listHistory.map((obj, index) => {
          return index === Number(indexCollapse)
            ? Object.assign(obj, { isOpen: !obj.isOpen })
            : obj;
        }),
      },
    }));

VS Code

回到上下一個工作

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# Mac:
prev: Ctrl + -
next: Ctrl + Shift + -

React

ClassNames

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<div className={classNames(styles.xxxxx, styles.yyyyy, styles.zzzzz)} />