util模塊的util.types.isBigUint64Array()方法主要旨在滿足Node.js自己的內部API的需求。
util.types.isBigUint64Array()方法用於檢查給定值是否為BigUint64Array對象。
用法:
util.types.isBigUint64Array( value )
參數：該函數接受上麵提到並在下麵描述的一個參數：
- value:這是BigUint64Array對象要檢查的值。
返回值：此方法返回一個布爾值，即如果傳遞的值是BigUint64Array的實例，則為true，否則返回false。
以下示例說明了Node.js中的util.types.isBigUint64Array()方法：
範例1：
// Node.js program to demonstrate the
// util.types.isBigUint64Array() method
// Import the util module
const util = require('util');
// Checking for a big signed 64-bit integer array
isBigUnsignedint64Arr
= util.types.isBigUint64Array(new BigUint64Array());
console.log("Object is Big Unsigned 64-bit array object:",
isBigUnsignedint64Arr);
isBigUnsignedint64Arr
= util.types.isBigUint64Array(new BigInt64Array());
console.log("Object is Big Unsigned 64-bit array object:",
isBigUnsignedint64Arr);
isBigUnsignedint64Arr
= util.types.isBigUint64Array(new Int32Array());
console.log("Object is Big Unsigned 64-bit array object:",
isBigUnsignedint64Arr);輸出：
Object is Big Unsigned 64-bit array object:true Object is Big Unsigned 64-bit array object:false Object is Big Unsigned 64-bit array object:false
範例2：
// Node.js program to demonstrate the
// util.types.isBigUint64Array() method
// Import the util module
const util = require('util');
// Checking a big unsigned 64-bit integer array
let bigUnsigned64Arr
= new BigUint64Array([16n, 25n, 69n]);
console.log(bigUnsigned64Arr);
isBigUnsignedint64Arr
= util.types.isBigUint64Array(bigUnsigned64Arr);
console.log("Object is Big Unsigned 64-bit array object:",
isBigUnsignedint64Arr);
// Checking a big signed 64-bit integer array
let bigSigned64Arr
= new BigInt64Array([16n, 25n, 69n]);
console.log(bigSigned64Arr);
isBigUnsignedint64Arr
= util.types.isBigUint64Array(bigSigned64Arr);
console.log("Object is Big Unsigned 64-bit array object:",
isBigUnsignedint64Arr);
// Checking a unsigned 32-bit integer array
let unsigned32Arr
= new Uint32Array([16, 25, 69]);
console.log(unsigned32Arr);
isBigUnsignedint64Arr
= util.types.isBigUint64Array(unsigned32Arr);
console.log("Object is Big Unsigned 64-bit array object:",
isBigUnsignedint64Arr);輸出：
BigUint64Array [ 16n, 25n, 69n ] Object is Big Unsigned 64-bit array object:true BigInt64Array [ 16n, 25n, 69n ] Object is Big Unsigned 64-bit array object:false Uint32Array [ 16, 25, 69 ] Object is Big Unsigned 64-bit array object:false
參考： https://nodejs.org/api/util.html#util_util_types_isbiguint64array_value
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注：本文由純淨天空篩選整理自sayantanm19大神的英文原創作品 Node.js | util.types.isBigUint64Array() Method。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。