Invalid array length

[rawnly]

//...
https.get(url, response => {
			// if --progress run the progressbar
			if (flags.progress) {
				const len = parseInt(response.headers['content-length'], 10);
				const bar = new ProgressBar(chalk `{yellow ↓} {red :percent} [:bar] :elapsed s`, {
					complete: '=',
					incomplete: ' ',
					width: 20,
					total: len,
					clear: true
				});
			
				// on data received fill the progressbar
				response.on('data', chunk => {
					bar.tick(chunk.length, {
						passphrase: 'Making something awesome'
					});
				});
			}

                  //... rest of the function

causes:

/Users/rawnly/code/NODE/splash-cli-2018/node_modules/progress/lib/node-progress.js:155
  complete = Array(Math.max(0, completeLength + 1)).join(this.chars.complete);
             ^

RangeError: Invalid array length
    at ProgressBar.render (/Users/rawnly/code/NODE/splash-cli-2018/node_modules/progress/lib/node-progress.js:155:14)
    at ontimeout (timers.js:471:11)
    at tryOnTimeout (timers.js:306:5)
    at Timer.listOnTimeout (timers.js:266:5)

[kokarn]

Getting this as well

[junfeisu]

The reason for this problem is probably the total parameter except the problem, the value is NaN, you can check if this is the problem.

[actongorton]

Currently experiencing this exact issue.

[alwxkxk]

content-length isn't guaranteed so it could be 0 and make bug. set a value if content-length is 0.

      // content-length isn't guaranteed so it could be 0 and make bug. set a value if content-length is 0.
      const len = parseInt(response.headers["content-length"], 10) || 100000000;
      const bar = new ProgressBar("downloading [:bar] :rate/bps :percent :etas", {
        complete: "=",
        incomplete: " ",
        width: 20,
        total: len,
      });
      response.on("data", (chunk) => {
        bar.tick(chunk.length);
      });

it need validation for the better error info tips:
#171

[dcaillibaud]

I confirm the bug in 2.0.3 in case total is 0 :

const ProgressBar = require('progress')
const format = 'progress: :percent [:bar] :current/:total (~:etas left)'
const options = {total: 0}
const progressBar = new ProgressBar(format, options)
// next line throw RangeError: Invalid array length at ProgressBar.render
// on the line `complete = Array(Math.max(0, completeLength + 1)).join(this.chars.complete);`
// because completeLength isn't a number
progressBar.tick(0)

[fredgan]

The index of array must be integer. The input :total values is NAN or float, while the output array's index is not integer so than rendering error.

[iseasonora]

For a temp solution you can change node-progress.js

completeLength = Math.round(width * ratio)
with this one

completeLength = Math.round(width * ratio) | 0;

that works for me