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Calculate font size to fit width javascript

I created a function to calculate the font size to fit the width of the website I'm doing. I believe the code is a bit ugly and could use some improvement by creating a more logical function, faster and less heavy. In case anyone else got here looking both for a way to measure the width of a string and a way to know what's the largest font size that will fit in a particular width, here is a function that builds on @Domi's solution with a binary search: /** * Find the largest font size (in . Unfortunately there is no direct way of scaling to fit a width, so you'll have to do it yourself. One way of doing it is to pass the text with a default font size of, say 20, to imagettfbbox and retrieve the width from it. You can then calculate how much smaller or bigger the text should be to fit the size you want by calculating a scale factor.

Calculate font size to fit width javascript

[appendTo("body").css({fontFamily: fontFamily}).text(txt); $howdoyoumountain.com({fontSize: maxFont + "px"}); var maxWidth = $howdoyoumountain.com(); $howdoyoumountain.com({fontSize: minFont + "px" }); var minWidth = $howdoyoumountain.com(); var width howdoyoumountain.com is a great jQuery plugin for this. Dynamically making font size change so it stays within the container element? work, but when I display the final number it often does not fit in my display. I guess I somehow need to calculate the width of the final number every Javascript already seems to limit itself to 21 characters, so this is as small. If you set type with vw (viewport width) units, you can find an exact number It's another JavaScript library that adjusts font sizes to fit text into a. adapt font size so that those words occupy all div width (bigger words with small with CSS alone, but you could certainly do this using jquery/javascript. “fits the width of the parent” would be adjusted to fit on a single line. Reasoning There is quite a lot of interest in this: howdoyoumountain.com, GitHub, forks / font-size: fit-width | fit-height | fit-height-precise; Setting this property makes container ignore its text content when calculating it's size. Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, PHP, Python, Bootstrap, Java. Hello, I have written this CodePen for you Responsive Text with VW font-size unit It won't require JavaScript. How do I get the canvas to scale with div in HTML and Javascript? . Adjust the browser width to see the text shrink and grow. I've tested it on a page with fit-able texts, 20 fonts, worked fine. height fitting as well, so I changed the whole shabang to calculate I haven't changed the js code, so depending on how you're scaling, height/width fitting. Resizes font-size of text to fit into container howdoyoumountain.com js"> js"> widthpx;heightpx;'> The quick brown fox. | The logic seems a little off, if the font size gets below 10 I think you'll end up in an infinite loop. A minimum size or depth limit on the recursion.] Calculate font size to fit width javascript In case anyone else got here looking both for a way to measure the width of a string and a way to know what's the largest font size that will fit in a particular width, here is a function that builds on @Domi's solution with a binary search: /** * Find the largest font size (in pixels) that allows the string to fit in the given width. Calculate number of characters per line that fit into Div - Forum - Courses and Tutorials. CPL = Width / (font-size / font-constant). Calculate text width with JavaScript. - To calculate text width use the Canvas measureText method in JavaScript You can try to run the following code to get the text width DOCTYPE html html head head body script function displayTextWidth text font var myCanvas displayTextWidth ca. This is a trickier problem than it looks at first, because most browsers enforce a minimum font size. So if you use a loop to continually shrink the font, you also have to test to see if the actual font size is the same as the font size you just specified. If it's not, you've reached the minimum and need to cancel your loop. Change font size based on container height/width. Browse other questions tagged javascript jquery html css or ask Change font size to fit a variable width. HTML / CSS - adjust font-size to fill parent height and width Variant 2: Use JS to calculate the text size and then set the font-size property CSS background. If you want to set the font-size as a percentage of the viewport width, use the vwunit: #mydiv { font-size: 5vw; } The other alternative is to use SVG embedded in the HTML. It will just be a few lines. The font-size attribute to the text element will be interpreted as "user units", for instance those the viewport is defined in terms of. Calculate the display width of a string in Java (and of course which font you use and what font size and if the font is bold/italic, etc.). I have tested this. After that the offsetWidth property contains the width in pixels of the ruler element which adjusts itself to fit the text. While you could create a simple function which would take one parameter I have decided to benefit of the possibility of extending JavaScript classes using the prototype namespace. Having defined the function as above you. I created a function to calculate the font size to fit the width of the website I'm doing. I believe the code is a bit ugly and could use some improvement by creating a more logical function, faste. For every possible width between 1/th of the max width and the max width: Calculate a new font size based on the ratio of the target width to the max width Find the actual width of the font for that calculated font size Note: where I write "font size" what I actually mean is the width of a sample string, arbitrarily chosen, at a given font size. Edit2: I have now fixed those problems and limitations and added more options. You can set maximum font-size and you can also choose to limit the font-size using either width, height or both (default is both). I will work into accepting a max-width and max-height values in the wrapper element. Definition and Usage. The measureText() method returns an object that contains the width of the specified text, in pixels. Tip: Use this method if you need to know the width of a text, before writing it on the canvas. Unfortunately there is no direct way of scaling to fit a width, so you'll have to do it yourself. One way of doing it is to pass the text with a default font size of, say 20, to imagettfbbox and retrieve the width from it. You can then calculate how much smaller or bigger the text should be to fit the size you want by calculating a scale factor. Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, PHP, Python, Bootstrap, Java and XML.

CALCULATE FONT SIZE TO FIT WIDTH JAVASCRIPT

(18/36) Making Text Respond to Browser Width with howdoyoumountain.com
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