Last active
September 6, 2020 14:05
-
-
Save nigjo/906578fa4cecd80f9c84e1b71f230c48 to your computer and use it in GitHub Desktop.
a simple JavaScript function to fit some text to a parent via css letter-spacing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| /* | |
| * Copyright 2020 Jens Hofschröer. | |
| * | |
| * Licensed under the Apache License, Version 2.0 (the "License"); | |
| * you may not use this file except in compliance with the License. | |
| * You may obtain a copy of the License at | |
| * | |
| * http://www.apache.org/licenses/LICENSE-2.0 | |
| * | |
| * Unless required by applicable law or agreed to in writing, software | |
| * distributed under the License is distributed on an "AS IS" BASIS, | |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| * See the License for the specific language governing permissions and | |
| * limitations under the License. | |
| * | |
| * Original Source: https://gist.github.com/nigjo/906578fa4cecd80f9c84e1b71f230c48 | |
| */ | |
| /** | |
| * Adjust letterspacing to a block element. | |
| */ | |
| function adjustSpacing(div, maxWidth=-1, maxSpace=2.5, minSpace=-.2){ | |
| let text=div.textContent; | |
| if(text&&text.length>1){ | |
| if(maxWidth<=0){ | |
| maxWidth = div.parentNode.clientWidth; | |
| } | |
| let space = 0; | |
| while(space<maxSpace && div.clientWidth<maxWidth){ | |
| space += 0.1; | |
| div.style.letterSpacing = space+'em'; | |
| } | |
| while(space>minSpace && div.clientWidth>maxWidth){ | |
| space -= 0.01; | |
| div.style.letterSpacing = space+'em'; | |
| } | |
| } | |
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <head> | |
| <script src="adjustSpacing.js"></script> | |
| <script> | |
| window.addEventListener('DOMContentLoaded', function(){ | |
| let spans=document.querySelectorAll('span'); | |
| for(let i=0;i<spans.length;i++){ | |
| adjustSpacing(spans[i]); | |
| } | |
| }) | |
| </script> | |
| <style> | |
| span{display:inline-block;background-color:yellow;font-size:20pt;} | |
| div{max-width:200px;border:1px solid red;margin:.5em;} | |
| </style> | |
| </head> | |
| <body> | |
| <script> | |
| let text=''; | |
| for(let i=1;i<=20;i++){ | |
| text+=i%10; | |
| document.body | |
| .appendChild(document.createElement('div')) | |
| .appendChild(document.createElement('span')) | |
| .appendChild(document.createTextNode(text)); | |
| } | |
| </script> | |
| </body> | |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment