| theme |
night |
| transition |
slide |
| highlightTheme |
monokai |
| logoImg |
../../logo.drawio.svg. |
| slideNumber |
false |
| title |
Logging Data Types |
const LOG = (VAR) => {
const LOG = console.log;
// 1. check if the variable is a primitive type and not an object ?
( typeof VAR==="string"||typeof VAR==="number"||typeof VAR==="boolean"||typeof VAR==="symbol"||typeof VAR==="bigint"
&& typeof VAR !=="object" && VAR !==null && VAR !==undefined
) ?
LOG("\n PRIMITIVE: ", typeof VAR, "\n Value: ",VAR)
:
// 2. ELSE, Check what kind of object it is
// A. check if variable is an array ?
( Array.isArray(VAR) ) ?
// if it is an array, log it with table
LOG(`type: Array Object,
data:
`)& console.table(VAR)
:
// B. check if variable is object object and the state of the object
(VAR !==null && typeof VAR === "object") ?
LOG(`type: ${VAR}
frozen: ${Object.isFrozen(VAR)}
sealed: ${Object.isSealed(VAR)}
data:
${JSON.stringify(VAR)}
`)
:
// C. check if variable is function
(typeof VAR === "function") ?
LOG(`type: ${VAR},
frozen: ${Object.isFrozen(VAR)},
sealed: ${Object.isSealed(VAR)}
`)
:
// D. Null BUG Check
// due to the typeof null bug we, we check the value instead of using the operator
(VAR===null) ?
LOG("\n must be null: ", "'",typeof VAR,"'")
:
// E. Log as undefined
LOG("\n must be undefined... \n");
}