js 中if else if
来源:学生作业帮 编辑:神马作文网作业帮 分类:综合作业 时间:2024/11/06 07:14:17
js 中if else if
这个是不是可以包夹很多个的?
Add an else if branch to your existing if/else statement.If thenumber put into the function is not a number at all,instead of returntrue; or return false;,the function should return a string that tells the user that their input isn't a number.(This string can say whatever you like.)
------------------------------------------代码-----------------------
var isEven = function(number) {
if(number % 2 ==0){
return true ;}
else{
return false;}
}
else if(isNaN(isEven)){
return "ok,go on"}
else{
return "please input a number"}
-------------------------------问题-------------------------------
靠,这个,妈蛋的我知道知道这个是错的肯定是错的,系统叫我弄额ELSE IF的结构,神经,我就是不会弄,我就掉在这个坑了,其他的估计没有错.
这个是不是可以包夹很多个的?
Add an else if branch to your existing if/else statement.If thenumber put into the function is not a number at all,instead of returntrue; or return false;,the function should return a string that tells the user that their input isn't a number.(This string can say whatever you like.)
------------------------------------------代码-----------------------
var isEven = function(number) {
if(number % 2 ==0){
return true ;}
else{
return false;}
}
else if(isNaN(isEven)){
return "ok,go on"}
else{
return "please input a number"}
-------------------------------问题-------------------------------
靠,这个,妈蛋的我知道知道这个是错的肯定是错的,系统叫我弄额ELSE IF的结构,神经,我就是不会弄,我就掉在这个坑了,其他的估计没有错.
var isEven = function(number) {
if(!isNaN(parseFloat(number)) && isFinite(number)){
return "ok, go on !";
} else {
return "please input a number";
}
}
or
var isEven = function(number) {
if(number - parseFloat(number) >= 0){
return "ok, go on !";
} else {
return "please input a number";
}
}
if(!isNaN(parseFloat(number)) && isFinite(number)){
return "ok, go on !";
} else {
return "please input a number";
}
}
or
var isEven = function(number) {
if(number - parseFloat(number) >= 0){
return "ok, go on !";
} else {
return "please input a number";
}
}
C语言的分支语句中,if()...if()...else...和if()...else if()...else...两者
C语言中,if……else if……else if……else if……else语句中,可以不用else结尾而用else
if...else if.else if.else if.的用法是什么
MATLAB中else if与elseif使用?
求助C语言中if else语句
宏程序中IF ELSE ENDIF
vb2008中if-then-else如何使用
if else if else 的用法
if(){}else if(){}else if(){}else {}最后写else而不是else if结尾int a;
if-else-if 的用法
verilog中if else中能套if else吗,有啥错误啊,为什么?case中能套if else吗 case中能套
if else 和 if if 的区别