我想知道如何得到这个结果:
function() {
var myVar = "";
function () {
myVar += "This is ";
}
myVar = "my string";
alert(myVar); //would like it to display: This is my string
// only displays: my string
}
答案 0 :(得分:3)
你必须调用一个函数才能执行它,B必须重新组织你的字符串
function() {
var myVar = "";
function update() {
myVar = "This is " + myVar;
}
myVar = "my string";
update();
alert(myVar); //would like it to display: This is my string
// only displays: my string
}
答案 1 :(得分:1)
您必须调用该功能。
var myVar = "";
function someFunction() { // Give it a name
myVar += "This is ";
}
myVar = "my string";
someFunction(); // and call it
alert(myVar);