js常用操作

1.去掉最后一个字符

console.log(("0,1,2,3,4,5,".slice(0,-1)))

2.

3.

var str = "123";
console.log(str.indexOf("3") != -1 );  // true

Last updated 5 years ago

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1.去掉最后一个字符

console.log(("0,1,2,3,4,5,".slice(0,-1)))

2.

3.

var str = "123";
console.log(str.indexOf("3") != -1 );  // true