给定一个这样的字符串:
"The dog has a long tail, and it is RED!"
什么样的jQuery或JavaScript魔法可以用来保持空间只有一个最大空间?
目标:
"The dog has a long tail, and it is RED!"
给定一个这样的字符串:
"The dog has a long tail, and it is RED!"
什么样的jQuery或JavaScript魔法可以用来保持空间只有一个最大空间?
目标:
"The dog has a long tail, and it is RED!"
当前回答
var myregexp = new RegExp(/ {2,}/g);
str = str.replace(myregexp,' ');
其他回答
我知道我迟到了,但我发现了一个很好的解决方案。
下面就是:
var myStr = myStr.replace(/[ ][ ]*/g, ' ');
var string = "The dog has a long tail, and it is RED!";
var replaced = string.replace(/ +/g, " ");
或者如果你也想替换制表符:
var replaced = string.replace(/\s+/g, " ");
这是一种解决方案,尽管它将针对所有空格字符:
"The dog has a long tail, and it is RED!".replace(/\s\s+/g, ' ')
"The dog has a long tail, and it is RED!"
编辑:这可能更好,因为它的目标是一个空格后面跟着一个或多个空格:
"The dog has a long tail, and it is RED!".replace(/ +/g, ' ')
"The dog has a long tail, and it is RED!"
替代方法:
"The dog has a long tail, and it is RED!".replace(/ {2,}/g, ' ')
"The dog has a long tail, and it is RED!"
我没有单独使用/\s+/,因为它可以多次替换跨越1个字符的空格,而且可能效率较低,因为它的目标超过了必要的范围。
我没有深入测试任何这些,所以如果有bug,我就不知道了。
另外,如果你要做字符串替换,记得重新分配变量/属性到它自己的替换,例如:
var string = 'foo'
string = string.replace('foo', '')
使用jQuery.prototype.text:
var el = $('span:eq(0)');
el.text( el.text().replace(/\d+/, '') )
var myregexp = new RegExp(/ {2,}/g);
str = str.replace(myregexp,' ');
假设你还想覆盖制表符、换行符等,只需将\s\s+替换为' ':
string = string.replace(/\s\s+/g, ' ');
如果你真的只想覆盖空格(而不是制表符,换行符等),可以这样做:
string = string.replace(/ +/g, ' ');