字符串去重
function uniqStr(str) {
var str = str.split('');
var zarr = [];
for (var i = 0; i < str.length; i++) {
if (zarr.indexOf(str[i]) === -1) {
zarr.push(str[i])
}
}
return str.join('')
}
将字符放在对象中遍历拼接出字符串
function sc(str) {
var obj = {
r: "s",
o: "i",
t: "c",
n: "u",
F: "a"
};
var g = Object.keys(obj).concat(Object.values(obj));
var str = str.split('/');
var sr = '';
for (var i = 0; i < str.length; i++) {
sr = sr + g[str[i]];
}
return sr;
}
sc("4/8/3/7/2/6/1/3");//"constructor"
sc("7/1/3/5/2/0/8/7/2/1/0")//"Function"
把字符串的奇数位和偶数位分别提取到两个数组中
var str = "abcdef";
var a = str.split('');
var b = [];
var c = [];
for (var i = 0; i < a.length; i++) {
if (i % 2 === 0) {
b.push(a[i]);
} else {
c.push(a[i]);
}
}
将两个数组按奇数位和偶数位插入拼接为字符串
function jiou(b, c) {
var b = b.split('');
var c = c.split('');
var m = [];
for (var i = 0; i < b.length; i++) {
m.push(1 + i * 2);
}
for (var j = 0; j < c.length; j++) {
b.splice(m[j], 0, c[j])
}
return b.join('');
};
