Console的各种玩法
console.log('regular')
console.log('Hello %s world', '💩');
console.log('%c I am some styled text', 'font-size:30px; background:red; text-shadow: 10px 10px 0 blue')
console.warn('i am warning')
console.error('i am error')
console.assert(1 === 3, 'Wrong')
console.assert(1 === 1, 'Wrong')
console.clear()
const body = document.querySelector('body')
console.log(body)
console.dir(body)
const dogs = [{name: 'Snickers',age: 2}, {name: 'hugo',age: 8}];
dogs.forEach(dog => {
console.groupCollapsed(`${dog.name}`)
console.log(`name: ${dog.name}`)
console.log(`age: ${dog.age}`)
console.log(`${dogname} ${dog.age}`)
console.groupEnd(`${dog.name}`)
})
console.table(dogs)
console.count('curry');
console.count('curry');
console.count('Steve');
console.count('Steve');
console.count('curry');
console.count('Steve');
console.time('for loop time')
const arr = []
for (let i = 0; i < 100000; i++) {
arr.push(i)
}
console.timeEnd('for loop time')
console.time('fetching data time');
fetch('https://api.github.com/users/noone')
.then(data => data.json())
.then(data => {
console.timeEnd('fetching data time');
console.log(data);
});