search

Home >Web Front-end >JS Tutorial >Example analysis of adding numbers and strings in javascript_javascript skills

Example analysis of adding numbers and strings in javascript_javascript skills

WBOY
WBOYOriginal
2016-05-16 18:03:371898browse
复制代码 代码如下:

console.log('----1----')
console.log('12' '34')//'1234'
console.log('12' 34 )//'1234'
console.log(12 '34')//'1234'
console.log(12 34 )//46
console.log('----2----')
console.log( '12' '34')//'1234'
console.log( '12' 34 )//46
console.log( 12 '34')//'1234'
console.log( 12 34 )//46
console.log('----3----')
console.log(-'12' '34')//'-1234'
console.log(-'12' 34)//22
console.log(-12 '34')//'-1234'
console.log(-12 34)//22
console.log('----4----')
console.log('12' - '34')//-22
console.log('12' - 34)//-22
console.log(12 - '34')//-22
console.log(12 - 34)//-22
console.log('----5----')
console.log( '12' - '34')//-22
console.log( '12' - 34)//-22
console.log( 12 - '34')//-22
console.log( 12 - 34)//-22
console.log('----6----')
console.log(-'12' - '34')//-22
console.log(-'12' - 34)//-22
console.log(-12 - '34')//-22
console.log(-12 - 34)//-22

javascript中字符串连接的同时数字相加
document.write("")
假如i=1，以上代码输出为
如果想输出为2.jpg，应该这样写
document.write("")
Statement：
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Previous article：js code that imitates jQuery’s siblings effect_javascript skillsNext article：js code that imitates jQuery’s siblings effect_javascript skills

Related articles

See more