请问JS如何删除逗号间隔的字符串中其中某一个字符 请问JS如何删除字符串中的其中某一个字符
javascript\u4e2d\u5982\u4f55\u5220\u9664\u9017\u53f7\u95f4\u9694\u7684\u5b57\u7b26\u4e32\u4e2d\u5176\u4e2d\u67d0\u4e00\u4e2a\u5b57\u7b26var str = "0,0,0,0,0,1,0,0";
var index=10;
alert(str.substring(0, index)+str.substr(index+1+1));
index+1+1:\u7b2c\u4e00\u4e2a+1 \u662f\u4ee3\u8868\u5220\u9664\u76841\uff0c\u7b2c\u4e8c\u4e2a+1\u662f\u83b7\u53d6\u8fd9\u4e2a\u4f4d\u7f6e\u4e4b\u540e\u7684\u4e32
var yugi = function(str, reg, replaced){ return str.replace(reg, replaced);}var str = "1+2*3+2";str = yugi(str, "2*3", "5");console.log(str);
直接 a.replace( b + ',' , ''); 会出问题。比如 11,22,33，我要去除 1 的话，就不行了。1、方法1
将字符串转换成数组，一个个比过来。
2、方法2
function remove(a, b) {
var _b = b + ',', idx = a.indexOf(b), idx2 = a.indexOf(_b);
if( idx == idx2 )
a = a.replace( _b, '');
return a;
}
function remove(a,b){
var c=a.split(','),d="";
for(var i=0;i<c.length;i++){
d+=c[i]==b?"":","+c[i];
}
return d.length>0?d.substring(1):"";
}
调用：
var str="11,22,33,42,45,56";
alert(remove(str,"33"));
function func(a,b) {
// 在a字符串前后最后加逗号，
// 删除b字符串，
// 删除a字符串前后逗号
return (',' + a + ',').replace(',' + b + ',', ',').substr(1).replace(/,$/, '');
}
function func(a,b)
{
return a.replace(b + ",", "");
}
绛旓細鐩存帴 a.replace( b + ',' , ''); 浼氬嚭闂銆傛瘮濡 11,22,33锛屾垜瑕佸幓闄 1 鐨勮瘽锛屽氨涓嶈浜嗐1銆佹柟娉1 灏瀛楃涓杞崲鎴愭暟缁勶紝涓涓釜姣旇繃鏉ャ2銆佹柟娉2 function remove(a, b) { var _b = b + ',', idx = a.indexOf(b), idx2 = a.indexOf(_b);if( idx == idx2 )a =...
绛旓細閬嶅巻褰瀛楃涓杩炴帴杈撳嚭涓嶅氨瀹屼簡 var str = ''for (var a in newarray) { str += a}window.console.log(str)
绛旓細([0-9]+[,]?)+
绛旓細1銆侀鍏堬紝鎵撳紑html缂栬緫鍣紝鏂板缓html鏂囦欢锛屼緥濡傦細index.html銆2銆佸湪index.html鐨勬爣绛句腑锛岃緭鍏js浠ｇ爜锛歷ar a = [1, 2, 3, 4, 5];var b = a.join('');document.body.innerText = b;銆3銆佹祻瑙堝櫒杩愯index.html椤甸潰锛屾鏃舵暟缁勫厓绱犱箣闂寸殑閫楀彿琚鍘绘帀浜嗘墦鍗板嚭鏉ヤ簡銆
绛旓細濡傛灉鎯鍘绘帀鎵浠ョ殑','锛屾渶绠鍗曠殑鍔炴硶灏辨槸姝ｅ垯琛ㄨ揪寮忎簡銆備笅闈㈡槸绠鍗曠殑渚嬪瓙銆備粎渚涘弬鑰冿細var a ='sdf,sdw,r,,gd,rg,et,r,th,rh';a.replace(/,/g,'');replace() 鏂规硶鐢ㄤ簬鍦瀛楃涓涓敤涓浜涘瓧绗︽浛鎹㈠彟涓浜涘瓧绗︼紝鎴栨浛鎹竴涓笌姝ｅ垯琛ㄨ揪寮忓尮閰嶇殑瀛愪覆銆俿tringObject.replace(regexp/substr,replacement)鍙...
绛旓細涓昏瑙ｅ喅棣栧熬鍖归厤鐨勯棶棰樺氨鍙互,鍋囪棣栧熬鐨閫楀彿鏈変竴涓垨澶氫釜.鍖归厤棣栧熬鐨勬鍒欏厓瀛楃鍒嗗埆鏄痎鍜$,鍖归厤閫楀彿鐢"," 鍖归厤涓涓垨澶氫釜閫楀彿鐢",+"var str=",ABC,,,";str.replace(/^,+/,"").replace(/,+$/,""); //寰楀埌ABC
绛旓細鍦js涓幓鎺夊瓧绗︿覆鏈鍚庝竴浣嶇殑閫楀彿锛屽氨鏄瀛楃涓茶繘琛屾搷浣滐紝瀛楃涓叉搷浣滅殑鏂规硶鏈夊緢澶氾紝涔熷緢鐏垫椿锛岃繖閲屼粙缁嶄竴绉嶆瘮杈冨鏄撶悊瑙ｇ殑浠ｇ爜锛屽悓鏃跺綋閫楀彿涓嶆槸鍦ㄦ渶鍚庝竴涓瓧绗︽椂涔熷彲浠ヤ娇鐢細 var string = '123,456,789';var lastIndex = s.lastIndexOf(鈥,鈥);if (lastIndex > -1) { string = s.substring...
绛旓細1銆佷綘鍙互鐢╯ubstr鎴栬卻ubstring鍑芥暟鎴彇瀛楃涓锛堝叿浣撶敤娉曪紝浣犲彲浠ョ櫨搴︿竴涓嬶紝鍔犳繁浣犵殑鍗拌薄锛2銆佸鏋滄槸姣忔鎷兼帴锛屼綘閮戒細鍦ㄥ瓧绗︿覆鍚庨潰娣诲姞涓涓閫楀彿锛屾渶鍚庝竴涓笉娣诲姞銆傚鏋滄槸杩欑鎯呭喌锛屼綘鍙互鍒╃敤鏁扮粍锛岀劧鍚巎oin(',')锛屾暟缁勮浆涓哄瓧绗︿覆锛屽苟浠ラ楀彿鍒嗛殧銆傘恓oin鍏蜂綋鐢ㄦ硶锛屼綘鍙互鐧惧害涓涓嬨戯紱浣犻鍏堝０鏄庝竴涓暟缁...
绛旓細length) return ; for(var i = index ;i < this.length ; i++){ this[i]=this[i+1]; } this.length-- ;}鍔犱笂涓婇潰鐨勪唬鐮佸悗锛屽氨鍙互 jsonData.delete(0);浣跨敤 delete 鍒犻櫎鏁扮粍鍏冪礌锛屽彧鏄垹闄や簡涓嬫爣鍜屽厓绱狅紝浣嶇疆娌℃湁鍒犻櫎锛屾暟缁勯暱搴︿笉鍙樸
绛旓細鎴彇鎷兼帴瀛楃绐滃湪涓璧峰氨鍙互浜 姣斿"+aa.SubString()+"+"+bb.SubString()+"锛屽氨鏄妸姣忎竴涓埅鍙栫殑缁撴灉閮芥嫾鎺ヨ捣鏉ュ湪for寰幆閲岄潰锛宻tring a="aaa";for锛坕nt i=0;i<10;i++锛夛經 a=a+"i.tostring()"锝 鏈鍚庤緭鍑虹殑a灏辨槸aaa0123456789 鍚庨潰鐨勬瘡涓暟瀛愰兘鏄嫾鎺ヤ笂鍘荤殑锛屽拰浣犵殑閭ｄ簺鏁扮粍鍊间竴鏍 ...
