This morning i needed to reduce any given string to a certain length and then place a pattern at the end of the string, in this case a simple '....' but the reduction had to take into account full words, meaning, i didnt want to just split the string in any old place and leave parts of a word in the final string. So i created this little String Exstension which i thought may come in useful for some other people! Seems to work great for me....
You pass this method of the String object, a length to cut the string down to, and a pattern that you want to be returned at the end of the string:
| String.prototype.reduce=function(l,p)
{ if(this.length<=l) return this; var words=this.split(" ") var numWords=words.length var output=[] var ol,cWord,w for(w=0;w<numWords;++w) { cWord=words[w] cwl=cWord.length if((ol+cwl)<=l) { output.push(cWord) ol+=cwl+1 } else break } return output.join(" ")+(this.length>l) ? p } |
And here is how you would use this method:
| rhyme="Bah bah, black sheep, have you any wool?"
cutRhyme=rhyme.reduce(22,"...") |
For examples sake:
| trace(cutRhyme); |
Outputs:
Bah bah black sheep...
