7 q9 U E& z! Z2 N4 I' {/ V) E( v 2. console.error() ! p v/ p# o. |( \! N, v此方法用于将错误消息记录到控制台。在测试代码时很有用。默认情况下,错误消息将突出显示为红色。1 p1 Y* s. a3 m/ d' {* H0 m: U
// console.time() and console.timeEnd() method
// console.time() method
console.time("Let's see time console")
let time1 = function(){
console.log('time1 function is running')
}
let time2 = function(){
console.log('time2 function is running')
}
time1()
time2()
// console.timeEnd() method
console.timeEnd('Time Taken')
// console.group() and console.groupEnd() method
// console.group() method
console.group('This is a sample group')
console.log('This is a sample group log')
console.warn('This is a sample group warning')
console.error('This is a sample group error')
// console.groupEnd() method
console.groupEnd('This is a sample group')
console.log('This is a new section')